66%tests ≥ 4 pCi/L
1,257tests on record
6.1median pCi/L
Zone 1EPA zone (1993 prediction)

Test results in Madison County

ResultShareEPA guidance
Below 2 pCi/L16%Below EPA's levels
2 to 4 pCi/L18%Consider fixing
4 pCi/L or more66%EPA recommends fixing

What the data shows

Where Madison County sits among Nebraska's 93 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 Madison County compares

Madison County ranks 4 of 7 among its neighboursShare of tests at or above 4 pCi/L · Radon test results from laboratories, 2008–2017 · whisker: 95% range
Wayne County76%Boone County74%Antelope County71%Madison County66%Stanton County64%Pierce County55%Platte County51%Nebraska 59%
Data table
AreaTests ≥ 4 pCi/LTests
Wayne County76%637
Boone County74%225
Antelope County71%258
Madison County66%1,257
Stanton County64%219
Pierce County55%234
Platte County51%981
Nebraska (93 counties)59%42,782

Same source as Madison County.

What it means for your home

More than half of all results in Madison 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: 1,257. 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