36%tests ≥ 4 pCi/L
390tests on record
2.7median pCi/L
Zone 1EPA zone (1993 prediction)

Test results in Shenandoah County

ResultShareEPA guidance
Below 2 pCi/L39%Below EPA's levels
2 to 4 pCi/L25%Consider fixing
4 pCi/L or more36%EPA recommends fixing

What the data shows

Where Shenandoah 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 Shenandoah County compares

Shenandoah County ranks 5 of 6 among its neighboursShare of tests at or above 4 pCi/L · Radon test results from laboratories, 2008–2017 · whisker: 95% range
Frederick County44%Rockingham County44%Page County38%Warren County37%Shenandoah County36%Hardy County, West Virgin…23%Virginia 30%
Data table
AreaTests ≥ 4 pCi/LTests
Frederick County44%2,451
Rockingham County44%1,714
Page County38%141
Warren County37%536
Shenandoah County36%390
Hardy County, West Virginia23%53
Virginia (131 counties)30%53,199

Same source as Shenandoah County.

What it means for your home

About 1 in 3 results in Shenandoah 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: 390. 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