29%tests ≥ 4 pCi/L
6,273tests on record
2.3median pCi/L
Zone 2EPA zone (1993 prediction)

Test results in Forsyth County

ResultShareEPA guidance
Below 2 pCi/L43%Below EPA's levels
2 to 4 pCi/L28%Consider fixing
4 pCi/L or more29%EPA recommends fixing

What the data shows

Where Forsyth County sits among North Carolina's 99 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%10%20%30%40%50%

How Forsyth County compares

Forsyth County ranks 2 of 8 among its neighboursShare of tests at or above 4 pCi/L · Radon test results from laboratories, 2008–2017 · whisker: 95% range
Surry County33%Forsyth County29%Yadkin County29%Rockingham County27%Davidson County26%Stokes County22%Davie County17%Guilford County8%North Carolina 23%
Data table
AreaTests ≥ 4 pCi/LTests
Surry County33%855
Forsyth County29%6,273
Yadkin County29%199
Rockingham County27%835
Davidson County26%1,265
Stokes County22%592
Davie County17%694
Guilford County8%6,870
North Carolina (99 counties)23%73,139

Same source as Forsyth County.

What it means for your home

About 1 in 3 results in Forsyth 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.

Prefer a digital monitor? See Airthings radon monitors, or enter code radonbycounty-10OFF at their discount store for 10% off.

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: 6,273. 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