21%tests ≥ 4 pCi/L
572tests on record
2.0median pCi/L
Zone 2EPA zone (1993 prediction)

Test results in Franklin County

ResultShareEPA guidance
Below 2 pCi/L50%Below EPA's levels
2 to 4 pCi/L29%Consider fixing
4 pCi/L or more21%EPA recommends fixing

What the data shows

Where Franklin 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 Franklin County compares

Franklin County has the lowest 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
Patrick County55%Floyd County43%Pittsylvania County38%Henry County36%Bedford County23%Roanoke County22%Franklin County21%Virginia 30%
Data table
AreaTests ≥ 4 pCi/LTests
Patrick County55%53
Floyd County43%54
Pittsylvania County38%242
Henry County36%115
Bedford County23%749
Roanoke County22%1,541
Franklin County21%572
Virginia (131 counties)30%53,199

Same source as Franklin County.

What it means for your home

About 1 in 5 results in Franklin 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: 572. 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