40%tests ≥ 4 pCi/L
511tests on record
2.8median pCi/L
Zone 2EPA zone (1993 prediction)

Test results in Cleveland County

ResultShareEPA guidance
Below 2 pCi/L37%Below EPA's levels
2 to 4 pCi/L24%Consider fixing
4 pCi/L or more40%EPA recommends fixing

What the data shows

Where Cleveland 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 Cleveland County compares

Cleveland 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
Cleveland County40%Lincoln County29%Burke County28%Rutherford County26%Gaston County19%Cherokee County, South Ca…14%York County, South Caroli…14%North Carolina 23%
Data table
AreaTests ≥ 4 pCi/LTests
Cleveland County40%511
Lincoln County29%708
Burke County28%940
Rutherford County26%511
Gaston County19%593
Cherokee County, South Carolina14%153
York County, South Carolina14%1,412
North Carolina (99 counties)23%73,139

Same source as Cleveland County.

What it means for your home

About 1 in 3 results in Cleveland 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: 511. 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