36%tests ≥ 4 pCi/L
871tests on record
2.7median pCi/L
Zone 1EPA zone (1993 prediction)

Test results in Colbert County

ResultShareEPA guidance
Below 2 pCi/L40%Below EPA's levels
2 to 4 pCi/L24%Consider fixing
4 pCi/L or more36%EPA recommends fixing

What the data shows

Where Colbert County sits among Alabama's 65 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%80%

How Colbert County compares

Colbert County has the highest share of high results among its neighboursShare of tests at or above 4 pCi/L · Radon test results from laboratories, 2008–2017 · whisker: 95% range
Colbert County36%Lauderdale County27%Franklin County18%Lawrence County16%Alabama 22%
Data table
AreaTests ≥ 4 pCi/LTests
Colbert County36%871
Lauderdale County27%1,885
Franklin County18%193
Lawrence County16%154
Alabama (65 counties)22%12,569

Same source as Colbert County. Other bordering counties: Tishomingo County, Mississippi.

What it means for your home

About 1 in 3 results in Colbert 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: 871. 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