58%tests ≥ 4 pCi/L
38tests on record
4.7median pCi/L
Zone 1EPA zone (1993 prediction)

Test results in Greeley County

ResultShareEPA guidance
Below 2 pCi/L18%Below EPA's levels
2 to 4 pCi/L24%Consider fixing
4 pCi/L or more58%EPA recommends fixing

What the data shows

Where Greeley 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 Greeley County compares

Greeley County ranks 3 of 7 among its neighboursShare of tests at or above 4 pCi/L · Radon test results from laboratories, 2008–2017 · whisker: 95% range
Boone County74%Nance County61%Greeley County58%Valley County52%Sherman County48%Howard County32%Wheeler County25%Nebraska 59%
Data table
AreaTests ≥ 4 pCi/LTests
Boone County74%225
Nance County61%171
Greeley County58%38
Valley County52%84
Sherman County48%91
Howard County32%114
Wheeler County25%8
Nebraska (93 counties)59%42,782

Same source as Greeley County.

What it means for your home

More than half of all results in Greeley 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: 38. 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