48%tests ≥ 4 pCi/L
66tests on record
3.8median pCi/L
Zone 1EPA zone (1993 prediction)

Test results in Adams County

ResultShareEPA guidance
Below 2 pCi/L27%Below EPA's levels
2 to 4 pCi/L24%Consider fixing
4 pCi/L or more48%EPA recommends fixing

What the data shows

Where Adams County sits among Indiana's 92 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 Adams County compares

Adams County ranks 3 of 6 among its neighboursShare of tests at or above 4 pCi/L · Radon test results from laboratories, 2008–2017 · whisker: 95% range
Mercer County, Ohio58%Van Wert County, Ohio54%Adams County48%Wells County48%Jay County44%Allen County42%Indiana 39%
Data table
AreaTests ≥ 4 pCi/LTests
Mercer County, Ohio58%149
Van Wert County, Ohio54%26
Adams County48%66
Wells County48%161
Jay County44%9
Allen County42%3,990
Indiana (92 counties)39%43,148

Same source as Adams County.

What it means for your home

About 1 in 2 results in Adams 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: 66. 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