Tennessee Radon Authority
Updated October 17, 2026
Cherokee Lake and forested shoreline near Mooresburg in Hawkins County, Tennessee

Hawkins County Radon · East Tennessee

Hawkins County, TN radon High risk.
No confirmed build mandate.

Hawkins County sits in EPA’s highest radon-potential zone. Yet the state residential code used outside the cities omits the radon appendix, local city codes remain unresolved, and no certified tester is based in the county.

Research verified October 16, 2026Sources linked throughout
Photo source: Zacres

Radon in Hawkins County, Tennessee: quick answers

EPA zone: Zone 1Region: East TennesseeState test data: State test figures couldn't be confirmed, so they aren't shown

Is radon a problem in Hawkins County, Tennessee?

Yes, it can be. Hawkins County is in EPA Zone 1, the highest radon-potential category, where the predicted average indoor screening level is above 4 pCi/L. Levels vary from house to house, so a test is the only way to know your home's level.

Do new homes in Hawkins County, TN have to be built radon-resistant?

No, not in unincorporated Hawkins County, which follows the state's 2018 code without the radon appendix. Current codes for Church Hill, Mount Carmel and Rogersville couldn't be confirmed. Local code details

How do I test my home for radon in Hawkins County?

Order a free short-term kit from the Tennessee Radon Program online or by calling 1-800-232-1139. Place it on the lowest lived-in floor, about 3 feet off the floor, for 3 to 5 days, then mail it back right away. How to test your home

What radon level means I should fix my home?

EPA recommends fixing your home if radon is 4 pCi/L or higher, and considering a fix between 2 and 4 pCi/L. Confirm a high short-term result with a second test first. What your result means

Who can test or fix radon in Hawkins County?

Tennessee doesn't license radon professionals, so look for NRPP or NRSB certification. Search both national directories by ZIP code; certified professionals often serve Hawkins County from nearby cities. How to choose a radon professional

Explore

Testing is the backstop that code does not provide.

Hawkins County government says it issues no building permits and has no county code enforcement; permits go through Tennessee. The State Fire Marshal’s residential rule adopts the 2018 IRC plus Appendix Q only—not Appendix F, the radon appendix.34

EPA Zone

1

EPA’s highest radon-potential category. Hawkins also appears in the 2024 IRC’s table of high radon-potential counties.12 A zone is a planning signal—not a test result for a particular home.

The county’s dashboard numbers are not ready to publish.

!No Hawkins-confirmed tooltip

Across four attempts, the Tennessee Radon Testing map returned neighboring counties such as Washington and Greene, never a tooltip whose own county label identified Hawkins.8

No Hawkins average, median or maximum appears here. Those figures need a confirmed county tooltip on multiple loads or underlying data from Tennessee officials.

4×Hover attempts without a Hawkins label
2022–23Years covered by the state dashboard
RegionBand charts aggregate the Northeast health region

A clear state rule, uncertain city records

Outside municipal programs, Tennessee’s State Fire Marshal residential framework is the operative code. The three principal municipalities need direct confirmation because online codifications are old or incomplete.

Jurisdiction
Status
What the record supports
Unincorporated Hawkins CountyState program

No county permits or enforcement. Tennessee uses the 2018 IRC plus Appendix Q only; Appendix F for radon is not adopted, so radon-resistant construction is optional.34

Church HillNot confirmed

The online Title 12 cites the 2006 IRC and names no appendices. That record may be superseded, so the current edition and SFMO authorization has not been confirmed.6

Mount CarmelNot confirmed

The town site lists no building or codes department, and the current residential edition could not be verified online. If no authorized local program exists, the state framework applies.

RogersvilleNot confirmed

The available codification references an old 2003 IBC. Current residential-code adoption and local authorization were not verified online.

F

The appendix that is missingAppendix F is “Radon Control Methods” in the 2018 IRC. Tennessee’s rule instead adopts Appendix Q for tiny houses and excludes optional or recommended provisions. The 2025 commercial-code update did not amend the residential chapter.45

How do I find a certified radon professional in Hawkins County?

Tennessee doesn't license radon testers or mitigators, so national certification is the best way to check qualifications. The Tennessee Radon Program points residents to two directories: search them by ZIP code and widen the radius if nothing is listed nearby.

We don't recommend or rank companies. Before you hire, check the certification number in the directory yourself and ask for a follow-up test after any system is installed. Questions to ask a radon professional.

Test every address—even a new one.

Hawkins County combines high geologic potential with no confirmed construction mandate. Tennessee’s disclosure form asks about known radon, but it is not a warranty and does not require a seller to test.11

01

Put testing in the contract

Use a negotiated radon inspection contingency. With no certified tester based in the county, schedule early enough for a Tri-Cities or Talbott provider to travel.

02

Include new and lake homes

Do not assume a new house—waterfront construction included—has a gas-permeable layer, soil-gas retarder, vent rough-in or other radon-ready features.

03

Use the statewide kit program

TDEC’s Tennessee Radon Program offers free DIY test kits to homeowners statewide. The reported hotline is 1-800-232-1139.14

Hawkins County had about 59,700 residents, roughly 28,000 housing units, 80% owner occupancy, a $176,300 median owner-occupied value and 141 building permits in 2025, according to cited population and Census summaries.1213 These figures describe market scale, not radon exposure.

Hawkins County radon FAQ

Short answers grounded in EPA’s zone file, Tennessee’s residential rule, the state dashboard review and current professional directories.

Yes. Hawkins County is EPA Radon Zone 1, the highest-potential category. That designation supports testing but does not predict the level in an individual home.

In unincorporated Hawkins County, no: the State Fire Marshal’s residential program adopts the 2018 IRC plus Appendix Q only, not Appendix F for radon. Current code editions and local authorization in Church Hill, Mount Carmel and Rogersville still need direct confirmation.

The Tennessee dashboard never produced a tooltip whose own county label identified Hawkins across four attempts. Neighboring-county numbers are not substitutes, so the average, median and maximum are withheld.

No. Tennessee’s disclosure form asks sellers about known environmental hazards, including radon gas, but it is not a warranty and does not create a duty to test. A buyer can negotiate a radon inspection contingency.

No Hawkins-specific rule was found. Tennessee law encourages local education agencies to conduct indoor-air-quality programs that may include radon testing; it does not mandate radon testing statewide.7

Read the record

Official sources establish the risk and code framework. Directory searches and market references provide a dated snapshot. Sources were reviewed October 16, 2026 unless noted.

  1. EPA Map of Radon Zones — Hawkins County is Zone 1.
  2. 2024 IRC Appendix BE — Table BE101.1 lists Hawkins among Tennessee’s high radon-potential counties.
  3. Hawkins County government — county permits, zoning and code-enforcement statement.
  4. Tennessee Rule 0780-02-23 — 2018 IRC, Appendix Q and treatment of optional provisions.
  5. AIA Tennessee code update — 2025 commercial-code update scope.
  6. Church Hill Title 12 — online codification’s 2006 code references and no listed appendices.
  7. TCA § 49-2-121 — school indoor-air-quality programs are encouraged and may include radon.
  8. Tennessee Radon Testing dashboard — 2022–2023 map and regional charts; Hawkins tooltip not verified.
  9. NRPP professional search — county and nearby-market directory results.
  10. NRSB directory — no result within 100 miles of Rogersville in the reviewed search.
  11. Tennessee residential disclosure form — known environmental hazards, including radon gas.
  12. Tennessee county growth summary — Hawkins population and growth estimate.
  13. Census QuickFacts: Hawkins County — housing, ownership, value and permit figures cited in the research.
  14. WGNS report on TDEC test kits — statewide homeowner kit program and hotline.