45%tests ≥ 4 pCi/L
488tests on record
3.6median pCi/L
Zone 3EPA zone (1993 prediction)

Test results in King George County

ResultShareEPA guidance
Below 2 pCi/L26%Below EPA's levels
2 to 4 pCi/L28%Consider fixing
4 pCi/L or more45%EPA recommends fixing

What the data shows

Where King George County sits among Virginia's 131 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 King George County compares

King George 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
King George County45%Caroline County33%Stafford County31%Charles County, Maryland24%Westmoreland County11%Essex County8%Virginia 30%
Data table
AreaTests ≥ 4 pCi/LTests
King George County45%488
Caroline County33%199
Stafford County31%2,758
Charles County, Maryland24%477
Westmoreland County11%56
Essex County8%13
Virginia (131 counties)30%53,199

Same source as King George County.

What it means for your home

About 1 in 2 results in King George 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: 488. 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