41%tests ≥ 4 pCi/L
6,618tests on record
3.1median pCi/L
Zone 1EPA zone (1993 prediction)

Test results in Jackson County

ResultShareEPA guidance
Below 2 pCi/L34%Below EPA's levels
2 to 4 pCi/L25%Consider fixing
4 pCi/L or more41%EPA recommends fixing

What the data shows

Where Jackson County sits among Missouri's 115 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%

How Jackson County compares

Jackson 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
Lafayette County47%Cass County46%Jackson County41%Clay County39%Ray County39%Johnson County26%Missouri 31%
Data table
AreaTests ≥ 4 pCi/LTests
Lafayette County47%184
Cass County46%988
Jackson County41%6,618
Clay County39%3,438
Ray County39%108
Johnson County26%264
Missouri (115 counties)31%58,525

Same source as Jackson County. Other bordering counties: Johnson County, Kansas, Wyandotte County, Kansas.

What it means for your home

About 1 in 2 results in Jackson 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: 6,618. 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