34%tests ≥ 4 pCi/L
597tests on record
2.3median pCi/L
Zone 2EPA zone (1993 prediction)

Test results in Montgomery County

ResultShareEPA guidance
Below 2 pCi/L46%Below EPA's levels
2 to 4 pCi/L20%Consider fixing
4 pCi/L or more34%EPA recommends fixing

What the data shows

Where Montgomery County sits among Tennessee's 95 counties with dataEach dot is a county's share of tests at or above 4 pCi/L · Radon test results from laboratories, 2008–2017
0%20%40%60%

How Montgomery County compares

Montgomery County ranks 3 of 8 among its neighboursShare of tests at or above 4 pCi/L · Radon test results from laboratories, 2008–2017 · whisker: 95% range
Christian County, Kentucky36%Cheatham County34%Montgomery County34%Robertson County29%Houston County29%Dickson County26%Stewart County26%Todd County, Kentucky18%Tennessee 33%
Data table
AreaTests ≥ 4 pCi/LTests
Christian County, Kentucky36%72
Cheatham County34%205
Montgomery County34%597
Robertson County29%273
Houston County29%14
Dickson County26%209
Stewart County26%95
Todd County, Kentucky18%62
Tennessee (95 counties)33%31,066

Same source as Montgomery County.

What it means for your home

About 1 in 3 results in Montgomery County were at or above 4 pCi/L, where the EPA recommends a fix. Only a test shows your own home's level.

Levels in pCi/L from the EPA. The WHO reference level is 100 Bq/m³, about 2.7 pCi/L.

Test your home

Start with a short-term test (2–90 days) and confirm a result of 4 pCi/L or more with a second test. EPA guide

Sponsored: we earn a commission on purchases through these links. We haven't tested Airthings monitors yet.

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Fixing high radon

No local job records yet. National range: $800–$2,500, average $1,200 (EPA, 2003). Cost guide →

About this data

Source: Radon test results from laboratories (CDC Environmental Public Health Tracking Network). Period: 2008–2017. Tests: 597. Read the methodology →

These are voluntary and real-estate tests, not a random sample of homes, so they describe tested homes rather than every home.

About this page

Published by Ray Roman, editor of Radon by County. Figures are loaded from the cited source and spot-checked against it. Editorial policy · About us