44%tests ≥ 4 pCi/L
117tests on record
3.6median pCi/L
Zone 1EPA zone (1993 prediction)

Test results in Guernsey County

ResultShareEPA guidance
Below 2 pCi/L31%Below EPA's levels
2 to 4 pCi/L25%Consider fixing
4 pCi/L or more44%EPA recommends fixing

What the data shows

Where Guernsey County sits among Ohio's 88 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 Guernsey County compares

Guernsey County ranks 6 of 7 among its neighboursShare of tests at or above 4 pCi/L · Radon test results from laboratories, 2008–2017 · whisker: 95% range
Tuscarawas County66%Coshocton County59%Muskingum County56%Harrison County50%Belmont County45%Guernsey County44%Noble County31%Ohio 52%
Data table
AreaTests ≥ 4 pCi/LTests
Tuscarawas County66%547
Coshocton County59%112
Muskingum County56%391
Harrison County50%44
Belmont County45%697
Guernsey County44%117
Noble County31%42
Ohio (88 counties)52%98,840

Same source as Guernsey County.

What it means for your home

About 1 in 2 results in Guernsey 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: 117. 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