{
 "name": "Tennessee county radon summary",
 "publisher": "Tennessee Radon Authority",
 "dateModified": "2026-10-17",
 "sources": {
  "epa_zones": "https://www.epa.gov/sites/default/files/2014-08/documents/tennessee.pdf",
  "state_test_data": "https://data.tn.gov/t/Public/views/Radon_Testing/TennesseeRadonTesting"
 },
 "notes": "EPA zones: 1 = predicted average indoor screening level above 4 pCi/L, 2 = 2 to 4, 3 = below 2. State test data are self-selected 2022-2023 tests reported to the Tennessee Department of Health; figures are included only where repeat checks confirmed them (verified) or a single check was seen (provisional). A missing figure never means radon is absent.",
 "counties": [
  {
   "county": "Anderson County",
   "slug": "anderson-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/anderson-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "verified",
   "state_test_data_2022_2023_pCiL": {
    "average": 2.1,
    "median": 1.4,
    "maximum": 6.2
   }
  },
  {
   "county": "Bedford County",
   "slug": "bedford-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/bedford-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Benton County",
   "slug": "benton-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/benton-county-tn-radon/",
   "region": "West Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "verified",
   "state_test_data_2022_2023_pCiL": {
    "average": 3.8,
    "median": null,
    "maximum": null
   }
  },
  {
   "county": "Bledsoe County",
   "slug": "bledsoe-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/bledsoe-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 3,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Blount County",
   "slug": "blount-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/blount-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "verified",
   "state_test_data_2022_2023_pCiL": {
    "average": 6.7,
    "median": 2.2,
    "maximum": 18.2
   }
  },
  {
   "county": "Bradley County",
   "slug": "bradley-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/bradley-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "verified",
   "state_test_data_2022_2023_pCiL": {
    "average": 4.5,
    "median": 1.9,
    "maximum": 19.5
   }
  },
  {
   "county": "Campbell County",
   "slug": "campbell-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/campbell-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 3,
   "state_test_data_status": "provisional",
   "state_test_data_2022_2023_pCiL": {
    "average": 3.7,
    "median": 0.8,
    "maximum": 7.2
   }
  },
  {
   "county": "Cannon County",
   "slug": "cannon-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/cannon-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "verified",
   "state_test_data_2022_2023_pCiL": {
    "average": 0.9,
    "median": 0.8,
    "maximum": 1.3
   }
  },
  {
   "county": "Carroll County",
   "slug": "carroll-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/carroll-county-tn-radon/",
   "region": "West Tennessee",
   "epa_radon_zone": 3,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Carter County",
   "slug": "carter-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/carter-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Cheatham County",
   "slug": "cheatham-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/cheatham-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "provisional",
   "state_test_data_2022_2023_pCiL": {
    "average": null,
    "median": 1.5,
    "maximum": 5.3
   }
  },
  {
   "county": "Chester County",
   "slug": "chester-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/chester-county-tn-radon/",
   "region": "West Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "verified",
   "state_test_data_2022_2023_pCiL": {
    "average": 1.0,
    "median": 1.0,
    "maximum": 1.2
   }
  },
  {
   "county": "Claiborne County",
   "slug": "claiborne-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/claiborne-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Clay County",
   "slug": "clay-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/clay-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 3,
   "state_test_data_status": "provisional",
   "state_test_data_2022_2023_pCiL": {
    "average": 2.5,
    "median": 1.1,
    "maximum": 2.6
   }
  },
  {
   "county": "Cocke County",
   "slug": "cocke-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/cocke-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Coffee County",
   "slug": "coffee-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/coffee-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "provisional",
   "state_test_data_2022_2023_pCiL": {
    "average": 1.3,
    "median": 0.6,
    "maximum": null
   }
  },
  {
   "county": "Crockett County",
   "slug": "crockett-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/crockett-county-tn-radon/",
   "region": "West Tennessee",
   "epa_radon_zone": 3,
   "state_test_data_status": "verified",
   "state_test_data_2022_2023_pCiL": {
    "average": 0.9,
    "median": null,
    "maximum": null
   }
  },
  {
   "county": "Cumberland County",
   "slug": "cumberland-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/cumberland-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 3,
   "state_test_data_status": "verified",
   "state_test_data_2022_2023_pCiL": {
    "average": 2.3,
    "median": null,
    "maximum": 7.0
   }
  },
  {
   "county": "Davidson County",
   "slug": "davidson-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/davidson-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "provisional",
   "state_test_data_2022_2023_pCiL": {
    "average": 2.8,
    "median": null,
    "maximum": 38.0
   }
  },
  {
   "county": "DeKalb County",
   "slug": "dekalb-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/dekalb-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "verified",
   "state_test_data_2022_2023_pCiL": {
    "average": 59.7,
    "median": 59.2,
    "maximum": 62.3
   }
  },
  {
   "county": "Decatur County",
   "slug": "decatur-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/decatur-county-tn-radon/",
   "region": "West Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "no_events",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Dickson County",
   "slug": "dickson-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/dickson-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "verified",
   "state_test_data_2022_2023_pCiL": {
    "average": 5.1,
    "median": 1.6,
    "maximum": 7.8
   }
  },
  {
   "county": "Dyer County",
   "slug": "dyer-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/dyer-county-tn-radon/",
   "region": "West Tennessee",
   "epa_radon_zone": 3,
   "state_test_data_status": "no_events",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Fayette County",
   "slug": "fayette-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/fayette-county-tn-radon/",
   "region": "West Tennessee",
   "epa_radon_zone": 3,
   "state_test_data_status": "verified",
   "state_test_data_2022_2023_pCiL": {
    "average": 2.3,
    "median": 1.3,
    "maximum": null
   }
  },
  {
   "county": "Fentress County",
   "slug": "fentress-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/fentress-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Franklin County",
   "slug": "franklin-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/franklin-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 3,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Gibson County",
   "slug": "gibson-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/gibson-county-tn-radon/",
   "region": "West Tennessee",
   "epa_radon_zone": 3,
   "state_test_data_status": "provisional",
   "state_test_data_2022_2023_pCiL": {
    "average": 0.9,
    "median": 0.8,
    "maximum": 1.7
   }
  },
  {
   "county": "Giles County",
   "slug": "giles-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/giles-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "verified",
   "state_test_data_2022_2023_pCiL": {
    "average": 4.3,
    "median": 1.5,
    "maximum": 4.4
   }
  },
  {
   "county": "Grainger County",
   "slug": "grainger-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/grainger-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Greene County",
   "slug": "greene-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/greene-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Grundy County",
   "slug": "grundy-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/grundy-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 3,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Hamblen County",
   "slug": "hamblen-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/hamblen-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Hamilton County",
   "slug": "hamilton-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/hamilton-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "verified",
   "state_test_data_2022_2023_pCiL": {
    "average": 2.1,
    "median": 0.7,
    "maximum": 35.3
   }
  },
  {
   "county": "Hancock County",
   "slug": "hancock-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/hancock-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Hardeman County",
   "slug": "hardeman-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/hardeman-county-tn-radon/",
   "region": "West Tennessee",
   "epa_radon_zone": 3,
   "state_test_data_status": "no_events",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Hardin County",
   "slug": "hardin-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/hardin-county-tn-radon/",
   "region": "West Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "verified",
   "state_test_data_2022_2023_pCiL": {
    "average": 1.8,
    "median": 1.8,
    "maximum": 1.8
   }
  },
  {
   "county": "Hawkins County",
   "slug": "hawkins-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/hawkins-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Haywood County",
   "slug": "haywood-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/haywood-county-tn-radon/",
   "region": "West Tennessee",
   "epa_radon_zone": 3,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Henderson County",
   "slug": "henderson-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/henderson-county-tn-radon/",
   "region": "West Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "no_events",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Henry County",
   "slug": "henry-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/henry-county-tn-radon/",
   "region": "West Tennessee",
   "epa_radon_zone": 3,
   "state_test_data_status": "no_events",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Hickman County",
   "slug": "hickman-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/hickman-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "provisional",
   "state_test_data_2022_2023_pCiL": {
    "average": null,
    "median": null,
    "maximum": 4.4
   }
  },
  {
   "county": "Houston County",
   "slug": "houston-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/houston-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Humphreys County",
   "slug": "humphreys-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/humphreys-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Jackson County",
   "slug": "jackson-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/jackson-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "provisional",
   "state_test_data_2022_2023_pCiL": {
    "average": 2.3,
    "median": 1.6,
    "maximum": 3.8
   }
  },
  {
   "county": "Jefferson County",
   "slug": "jefferson-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/jefferson-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Johnson County",
   "slug": "johnson-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/johnson-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "provisional",
   "state_test_data_2022_2023_pCiL": {
    "average": 4.5,
    "median": null,
    "maximum": 6.4
   }
  },
  {
   "county": "Knox County",
   "slug": "knox-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/knox-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "verified",
   "state_test_data_2022_2023_pCiL": {
    "average": null,
    "median": null,
    "maximum": 18.2
   }
  },
  {
   "county": "Lake County",
   "slug": "lake-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/lake-county-tn-radon/",
   "region": "West Tennessee",
   "epa_radon_zone": 3,
   "state_test_data_status": "no_events",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Lauderdale County",
   "slug": "lauderdale-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/lauderdale-county-tn-radon/",
   "region": "West Tennessee",
   "epa_radon_zone": 3,
   "state_test_data_status": "no_events",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Lawrence County",
   "slug": "lawrence-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/lawrence-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Lewis County",
   "slug": "lewis-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/lewis-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "no_events",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Lincoln County",
   "slug": "lincoln-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/lincoln-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "verified",
   "state_test_data_2022_2023_pCiL": {
    "average": 2.0,
    "median": null,
    "maximum": 4.3
   }
  },
  {
   "county": "Loudon County",
   "slug": "loudon-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/loudon-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Macon County",
   "slug": "macon-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/macon-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Madison County",
   "slug": "madison-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/madison-county-tn-radon/",
   "region": "West Tennessee",
   "epa_radon_zone": 3,
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    "average": 2.0,
    "median": 1.6,
    "maximum": null
   }
  },
  {
   "county": "Marion County",
   "slug": "marion-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/marion-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 3,
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    "average": 5.2,
    "median": 4.6,
    "maximum": 10.2
   }
  },
  {
   "county": "Marshall County",
   "slug": "marshall-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/marshall-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 1,
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    "average": 0.9,
    "median": 0.9,
    "maximum": 0.9
   }
  },
  {
   "county": "Maury County",
   "slug": "maury-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/maury-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "verified",
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    "average": 5.9,
    "median": 3.0,
    "maximum": 12.5
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  },
  {
   "county": "McMinn County",
   "slug": "mcminn-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/mcminn-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "verified",
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    "average": 2.1,
    "median": 1.4,
    "maximum": 2.5
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  },
  {
   "county": "McNairy County",
   "slug": "mcnairy-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/mcnairy-county-tn-radon/",
   "region": "West Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "no_events",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Meigs County",
   "slug": "meigs-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/meigs-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Monroe County",
   "slug": "monroe-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/monroe-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "verified",
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    "average": 2.0,
    "median": null,
    "maximum": 9.1
   }
  },
  {
   "county": "Montgomery County",
   "slug": "montgomery-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/montgomery-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "verified",
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    "average": 4.6,
    "median": 1.6,
    "maximum": 9.4
   }
  },
  {
   "county": "Moore County",
   "slug": "moore-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/moore-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Morgan County",
   "slug": "morgan-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/morgan-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 3,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Obion County",
   "slug": "obion-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/obion-county-tn-radon/",
   "region": "West Tennessee",
   "epa_radon_zone": 3,
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    "median": null,
    "maximum": null
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  },
  {
   "county": "Overton County",
   "slug": "overton-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/overton-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "verified",
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    "average": 7.4,
    "median": 0.7,
    "maximum": 32.1
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  },
  {
   "county": "Perry County",
   "slug": "perry-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/perry-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "no_events",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Pickett County",
   "slug": "pickett-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/pickett-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": null,
   "state_test_data_status": "withheld",
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  },
  {
   "county": "Polk County",
   "slug": "polk-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/polk-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "withheld",
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  },
  {
   "county": "Putnam County",
   "slug": "putnam-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/putnam-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "withheld",
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  },
  {
   "county": "Rhea County",
   "slug": "rhea-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/rhea-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 3,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Roane County",
   "slug": "roane-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/roane-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "provisional",
   "state_test_data_2022_2023_pCiL": {
    "average": 2.3,
    "median": 1.6,
    "maximum": 8.4
   }
  },
  {
   "county": "Robertson County",
   "slug": "robertson-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/robertson-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "verified",
   "state_test_data_2022_2023_pCiL": {
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    "median": 0.8,
    "maximum": 5.9
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  },
  {
   "county": "Rutherford County",
   "slug": "rutherford-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/rutherford-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "verified",
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    "average": null,
    "median": null,
    "maximum": 3.9
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  },
  {
   "county": "Scott County",
   "slug": "scott-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/scott-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 3,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Sequatchie County",
   "slug": "sequatchie-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/sequatchie-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 3,
   "state_test_data_status": "provisional",
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    "median": null,
    "maximum": null
   }
  },
  {
   "county": "Sevier County",
   "slug": "sevier-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/sevier-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "provisional",
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    "average": 4.6,
    "median": 1.8,
    "maximum": 13.5
   }
  },
  {
   "county": "Shelby County",
   "slug": "shelby-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/shelby-county-tn-radon/",
   "region": "West Tennessee",
   "epa_radon_zone": 3,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Smith County",
   "slug": "smith-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/smith-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "verified",
   "state_test_data_2022_2023_pCiL": {
    "average": 2.0,
    "median": null,
    "maximum": 2.9
   }
  },
  {
   "county": "Stewart County",
   "slug": "stewart-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/stewart-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "no_events",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Sullivan County",
   "slug": "sullivan-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/sullivan-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Sumner County",
   "slug": "sumner-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/sumner-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "verified",
   "state_test_data_2022_2023_pCiL": {
    "average": 2.4,
    "median": 1.4,
    "maximum": 9.3
   }
  },
  {
   "county": "Tipton County",
   "slug": "tipton-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/tipton-county-tn-radon/",
   "region": "West Tennessee",
   "epa_radon_zone": 3,
   "state_test_data_status": "withheld",
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  },
  {
   "county": "Trousdale County",
   "slug": "trousdale-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/trousdale-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Unicoi County",
   "slug": "unicoi-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/unicoi-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Union County",
   "slug": "union-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/union-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "withheld",
   "state_test_data_2022_2023_pCiL": null
  },
  {
   "county": "Van Buren County",
   "slug": "van-buren-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/van-buren-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "verified",
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    "median": null,
    "maximum": null
   }
  },
  {
   "county": "Warren County",
   "slug": "warren-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/warren-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "withheld",
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  },
  {
   "county": "Washington County",
   "slug": "washington-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/washington-county-tn-radon/",
   "region": "East Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "withheld",
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  },
  {
   "county": "Wayne County",
   "slug": "wayne-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/wayne-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "verified",
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    "median": 10.2,
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   }
  },
  {
   "county": "Weakley County",
   "slug": "weakley-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/weakley-county-tn-radon/",
   "region": "West Tennessee",
   "epa_radon_zone": 3,
   "state_test_data_status": "no_events",
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  },
  {
   "county": "White County",
   "slug": "white-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/white-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 2,
   "state_test_data_status": "verified",
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  },
  {
   "county": "Williamson County",
   "slug": "williamson-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/williamson-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 1,
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    "maximum": 17.2
   }
  },
  {
   "county": "Wilson County",
   "slug": "wilson-county-tn-radon",
   "url": "https://tennesseeradonauthority.com/wilson-county-tn-radon/",
   "region": "Middle Tennessee",
   "epa_radon_zone": 1,
   "state_test_data_status": "verified",
   "state_test_data_2022_2023_pCiL": {
    "average": 2.5,
    "median": 0.9,
    "maximum": 9.5
   }
  }
 ]
}