37%tests ≥ 4 pCi/L
46tests on record
2.3median pCi/L
Zone 2EPA zone (1993 prediction)

Test results in Laclede County

ResultShareEPA guidance
Below 2 pCi/L46%Below EPA's levels
2 to 4 pCi/L17%Consider fixing
4 pCi/L or more37%EPA recommends fixing

What the data shows

Where Laclede 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 Laclede County compares

Laclede 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
Laclede County37%Wright County28%Camden County23%Webster County20%Texas County19%Pulaski County19%Dallas County15%Missouri 31%
Data table
AreaTests ≥ 4 pCi/LTests
Laclede County37%46
Wright County28%18
Camden County23%763
Webster County20%103
Texas County19%57
Pulaski County19%107
Dallas County15%27
Missouri (115 counties)31%58,525

Same source as Laclede County.

What it means for your home

About 1 in 3 results in Laclede 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: 46. 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