45%tests ≥ 4 pCi/L
1,215tests on record
3.5median pCi/L
Zone 1EPA zone (1993 prediction)

Test results in Watauga County

ResultShareEPA guidance
Below 2 pCi/L31%Below EPA's levels
2 to 4 pCi/L23%Consider fixing
4 pCi/L or more45%EPA recommends fixing

What the data shows

Where Watauga 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 Watauga County compares

Watauga 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
Watauga County45%Wilkes County44%Avery County39%Johnson County, Tennessee34%Ashe County34%Caldwell County28%North Carolina 23%
Data table
AreaTests ≥ 4 pCi/LTests
Watauga County45%1,215
Wilkes County44%402
Avery County39%160
Johnson County, Tennessee34%157
Ashe County34%681
Caldwell County28%861
North Carolina (99 counties)23%73,139

Same source as Watauga County.

What it means for your home

About 1 in 2 results in Watauga 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: 1,215. 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