30%tests ≥ 4 pCi/L
1,199tests on record
2.5median pCi/L
Zone 2EPA zone (1993 prediction)

Test results in Fauquier County

ResultShareEPA guidance
Below 2 pCi/L41%Below EPA's levels
2 to 4 pCi/L29%Consider fixing
4 pCi/L or more30%EPA recommends fixing

What the data shows

Where Fauquier 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 Fauquier County compares

Fauquier County ranks 7 of 8 among its neighboursShare of tests at or above 4 pCi/L · Radon test results from laboratories, 2008–2017 · whisker: 95% range
Clarke County48%Rappahannock County42%Culpeper County40%Warren County37%Prince William County32%Stafford County31%Fauquier County30%Loudoun County27%Virginia 30%
Data table
AreaTests ≥ 4 pCi/LTests
Clarke County48%350
Rappahannock County42%137
Culpeper County40%891
Warren County37%536
Prince William County32%4,441
Stafford County31%2,758
Fauquier County30%1,199
Loudoun County27%4,457
Virginia (131 counties)30%53,199

Same source as Fauquier County.

What it means for your home

About 1 in 3 results in Fauquier 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: 1,199. 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