0%tests ≥ 4 pCi/L
47tests on record
0.5median pCi/L
Zone 3EPA zone (1993 prediction)

Test results in Brazos County

ResultShareEPA guidance
Below 2 pCi/L91%Below EPA's levels
2 to 4 pCi/L9%Consider fixing
4 pCi/L or more0%EPA recommends fixing

What the data shows

Where Brazos County sits among Texas's 138 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%100%

How Brazos County compares

Brazos 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
Brazos County0%Grimes County0%Madison County0%Robertson County0%Texas 10%
Data table
AreaTests ≥ 4 pCi/LTests
Brazos County0%47
Grimes County0%1
Madison County0%1
Robertson County0%7
Texas (138 counties)10%4,615

Same source as Brazos County. Other bordering counties: Burleson County, Leon County, Washington County.

What it means for your home

About 1 in 100 results in Brazos 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: 47. 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