Tennessee Radon Authority
Updated October 17, 2026

Weakley County radon · Martin, Dresden & rural communities

Weakley County radon. No local data. No required radon-ready construction.

Weakley County is mapped as EPA Zone 3, but Tennessee’s 2022–2023 dashboard shows no test events for the county. Reviewed residential-code pathways do not require radon-resistant construction, and no nationally certified measurement professional is based locally.

Research checked October 15, 2026Two live county-tooltip reads
Editorial cutaway illustration of radon moving through soil and foundation openings beneath a West Tennessee brick home
A Zone 3 label predicts broad potential. “No Events” means no reported tests—not no radon.

Radon in Weakley County, Tennessee: quick answers

EPA zone: Zone 3Region: West TennesseeState test data: No 2022–2023 state test records for this county

Is radon a problem in Weakley County, Tennessee?

It can be. Weakley County is in EPA Zone 3, the lowest predicted radon-potential category (below 2 pCi/L on average). Homes with high radon are still found in Zone 3, and the Tennessee Radon Program has found homes needing action in every Tennessee county, so test to know your home's level.

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

No. Dresden follows the state's 2018 code without the radon appendix. Martin's and the unincorporated county's codes weren't confirmed. Local code details

How do I test my home for radon in Weakley 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 Weakley 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 Weakley County from nearby cities. How to choose a radon professional

01 / QUICK READ

Lower predicted potential. Almost no local evidence.

Testing is the only property-level answer.

The state dashboard has no Weakley County test events for 2022–2023. Dresden uses the state residential code, which omits radon Appendix F. Martin also routes structural residential work to state inspection, while the unincorporated county’s apparent opt-out is not yet confirmed. [1] [2] [3] [4]

Bottom line
Zone 3, “new construction” and “No Events” are not substitutes for a home test.
Zone 3EPA lower-potential designation: predicted average indoor screening level below 2 pCi/L. [5] [6]
No EventsWeakley County’s result in Tennessee’s 2022–2023 dashboard, verified twice. [1]
0NRPP-listed professionals based in Weakley County; no NRSB measurement specialist within 50 miles. [7] [8]
51.6 miDistance from Martin to the nearest visible NRPP listing, in Kevil, Kentucky. [7]
02 / RISK & DATA

The public dashboard contains no Weakley County test events.

That is a data gap—not evidence that the county has no radon or that every home is low.

EPA radon potential
Zone 3

Predicted average indoor screening level below 2 pCi/L. EPA says the zone map helps target resources; it should not be used to decide whether an individual home needs testing. [5] [6]

COUNTY LABEL VERIFIED TWICE

Tennessee Radon Testing dashboard

No EventsAverage field
BlankMedian field
BlankMaximum field

On two separate loads, the tooltip’s own label read “County: Weakley” and “Average Radon Level: No Events.” No county average, median, maximum or test count exists to publish from this 2022–2023 dataset. [1]

The lower charts are health-region aggregates—not Weakley County counts.

The pre- and post-mitigation bands are labeled by health region. They cannot be used as Weakley County test totals or percentages.

03 / BUILDING CODES

No reviewed residential pathway adopts the radon appendix.

Dresden’s status is corroborated by the State Fire Marshal. Martin and the unincorporated county still have jurisdiction questions to close.

STATE 2018 IRC · APPENDIX F OMITTED

Dresden

Ordinance #2014-05 opted Dresden out of local residential-code enforcement. The city acts as an issuing agent for state permits, and the State Fire Marshal’s live list still names Dresden. Tennessee’s rule adopts the 2018 IRC and Appendix Q only; radon Appendix F is not adopted. [2] [3] [9]

Result: radon-resistant new construction is optional. The published Dresden code shows the 2012 IBC for non-residential buildings; whether that edition remains current is not confirmed.
CITY / STATE LIST DISCREPANCY

Martin

The city lists 2018 commercial codes but no IRC. Its official page says new homes, additions of 30 square feet or more, and structural remodeling are inspected by the State of Tennessee through CORE. The state’s published jurisdiction list does not name Martin. [4] [3]

Practical radon result under the city’s published state-inspection path: no required Appendix F. Confirm the jurisdiction conflict with Martin or the State Fire Marshal before relying on it.
LIKELY OPT OUT · RESOLUTION NOT FOUND

Unincorporated Weakley County

No county building code was found. The county’s $25 “building permit” is a tax-record permit created by Private Acts of 1992, Chapter 205; it does not attach construction standards. Weakley County is absent from the state list of unincorporated counties requiring a state residential permit. [10] [3]

Likely status: opted out. The required opt-out resolution was not found online, so confirm with the County Commission or State Fire Marshal.
STATE BASELINE

Tennessee residential rule

Rule 0780-02-23-.02 adopted the 2018 IRC “and Appendix Q”, effective July 16, 2020. It excludes optional or recommended standards. Appendix F, “Radon Control Methods,” is not adopted. [9]

No Weakley County or municipal radon-specific rule was found for schools, public buildings or real-estate transactions.

How do I find a certified radon professional in Weakley 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.

Search NRPPSearch NRSB

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.

04 / HOMEBUYERS

Put radon inside the inspection contingency.

No Weakley-specific real-estate rule was found. Tennessee does not require radon testing or disclosure in a standard home sale; state Realtor guidance advises buyers to include radon among appropriate inspection contingencies. [11] [12]

No county average can answer for the home.

Martin’s reported median sale price was about $234,500 in March 2026, with only three active listings and roughly 33 days on market. Treat those figures as a dated, third-party market snapshot—not a current valuation. [13]

New construction exists in Martin and Dresden, but the reviewed residential pathways do not require radon-resistant features. Ask what was installed, request plans or photos of any passive system, and test the completed home. [14]

Transaction plan

  1. Write radon testing into the inspection or due-diligence window.
  2. Book early; the nearest visible NRPP listing is more than 50 miles away.
  3. For a new build, ask for passive-system plans and installation photos.
  4. If mitigation is installed, retest to verify performance.
05 / TESTING RESOURCES

Start with the state program, then verify the tester.

TDEC offers free homeowner test kits statewide. For a real-estate transaction, use an independent nationally certified measurement professional where available.

Tennessee Radon Program

TDEC provides free test kits, school technical information, and materials for homeowners and real-estate professionals. [15]

Open the TDEC radon program →
Search NRPPUse ZIP 38237 and inspect each measurement credentialSearch NRSBFilter for Radon Measurement SpecialistView Tennessee’s dashboardWeakley County shows “No Events” in 2022–2023Check Martin building codesCity permits and state-inspection guidance
06 / FAQ

Questions Weakley County homeowners ask

Is Weakley County in a high-radon zone?

No. Weakley County is mapped as EPA Zone 3, the lower-potential category with a predicted average indoor screening level below 2 pCi/L. Elevated homes can occur in any zone, so a test is still the property-level answer.

What does Tennessee’s dashboard show for Weakley County?

Two county-labeled checks showed “No Events.” The 2022–2023 dataset therefore supplies no Weakley County average, median, maximum or test count to publish.

Does Weakley County require radon-resistant new construction?

No reviewed residential pathway requires it. Dresden uses the state’s 2018 IRC adoption, which includes Appendix Q only and omits radon Appendix F. Martin also directs structural residential work to state inspection, though that conflicts with the state’s published jurisdiction list. The unincorporated county’s apparent opt-out is not yet confirmed.

Are certified radon testers based in Weakley County?

The October 2026 directory checks found no NRPP-listed professional based in the county and no NRSB measurement specialist within 50 miles of Martin. The nearest visible NRPP listing was 51.6 miles away in Kevil, Kentucky.

Should a Zone 3 home still be tested?

Yes. EPA says its map is for targeting resources, not deciding whether one home should be tested. Weakley County’s “No Events” result is an absence of reported test data—not a measured low level.

07 / SOURCES

Primary documents, public data & directories

  1. Tennessee Radon Testing dashboard — two live Weakley County tooltip checks, October 15, 2026.
  2. Dresden Municipal Code and MTAS Title 12 copy — Ordinance #2014-05 residential opt-out and published commercial code.
  3. State Fire Marshal: Apply for a Residential Permit — live jurisdiction list.
  4. City of Martin Building Codes — adopted-code list, local permits and state residential inspections.
  5. EPA Map of Radon Zones — zone definitions and map-use guidance.
  6. EPA Map of Radon Zones: Tennessee; corroborated by the EPA Map of Radon Zones: Tennessee.
  7. NRPP Find a Pro — Martin ZIP 38237 search, October 15, 2026.
  8. NRSB Find a Professional — Tennessee and Kentucky 50-mile Radon Measurement Specialist searches.
  9. Tennessee Rule 0780-02-23 — 2018 IRC and Appendix Q adoption, effective July 16, 2020.
  10. CTAS Building Permits: Weakley County — Private Acts tax-record permit.
  11. Radon and Tennessee home sales — state-level testing and disclosure overview.
  12. Tennessee Realtors RF201 disclosure form — radon inspection-contingency guidance.
  13. Martin market trends — March 2026 third-party market snapshot.
  14. Weakley County home listings — examples of new construction visible during research.
  15. Tennessee Radon Program — free homeowner test kits and technical resources.
  16. State Fire Marshal Residential Permits — state residential-enforcement framework.
  17. MTAS Statewide Building Standards — state code baseline and opt-out context.

Method note. This page separates verified findings from inference and open questions. “No Events” was published only after two matching county-labeled reads. Health-region bars are not presented as county statistics. Directory results and real-estate figures are dated snapshots, not a census or current valuation.