41%tests ≥ 4 pCi/L
731tests on record
3.3median pCi/L
Zone 1EPA zone (1993 prediction)

Test results in Carson City

ResultShareEPA guidance
Below 2 pCi/L28%Below EPA's levels
2 to 4 pCi/L31%Consider fixing
4 pCi/L or more41%EPA recommends fixing

What the data shows

Where Carson City sits among Nevada's 16 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 Carson City compares

Carson City 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
Carson City 41%Douglas County37%Lyon County30%Washoe County22%Storey County18%Placer County, California7%Nevada 23%
Data table
AreaTests ≥ 4 pCi/LTests
Carson City 41%731
Douglas County37%1,617
Lyon County30%303
Washoe County22%5,046
Storey County18%34
Placer County, California7%283
Nevada (16 counties)23%10,930

Same source as Carson City .

What it means for your home

About 1 in 2 results in Carson City 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: 731. 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