51%tests ≥ 4 pCi/L
2,888tests on record
4.0median pCi/L
Zone 1EPA zone (1993 prediction)

Test results in Berkeley County

ResultShareEPA guidance
Below 2 pCi/L29%Below EPA's levels
2 to 4 pCi/L20%Consider fixing
4 pCi/L or more51%EPA recommends fixing

What the data shows

Where Berkeley County sits among West Virginia's 55 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 Berkeley County compares

Berkeley County ranks 4 of 6 among its neighboursShare of tests at or above 4 pCi/L · Radon test results from laboratories, 2008–2017 · whisker: 95% range
Morgan County58%Washington County, Maryla…56%Jefferson County53%Berkeley County51%Clarke County, Virginia48%Frederick County, Virginia44%West Virginia 38%
Data table
AreaTests ≥ 4 pCi/LTests
Morgan County58%241
Washington County, Maryland56%1,259
Jefferson County53%898
Berkeley County51%2,888
Clarke County, Virginia48%350
Frederick County, Virginia44%2,451
West Virginia (55 counties)38%10,061

Same source as Berkeley County.

What it means for your home

More than half of all results in Berkeley 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: 2,888. 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