39%tests ≥ 4 pCi/L
6,486tests on record
3.1median pCi/L
Zone 1EPA zone (1993 prediction)

Test results in Summit County

ResultShareEPA guidance
Below 2 pCi/L30%Below EPA's levels
2 to 4 pCi/L32%Consider fixing
4 pCi/L or more39%EPA recommends fixing

What the data shows

Where Summit 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 Summit County compares

Summit County ranks 5 of 7 among its neighboursShare of tests at or above 4 pCi/L · Radon test results from laboratories, 2008–2017 · whisker: 95% range
Wayne County62%Stark County60%Medina County43%Portage County39%Summit County39%Geauga County23%Cuyahoga County22%Ohio 52%
Data table
AreaTests ≥ 4 pCi/LTests
Wayne County62%1,074
Stark County60%3,317
Medina County43%2,139
Portage County39%1,661
Summit County39%6,486
Geauga County23%1,469
Cuyahoga County22%10,092
Ohio (88 counties)52%98,840

Same source as Summit County.

What it means for your home

About 1 in 3 results in Summit 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: 6,486. 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