26%tests ≥ 4 pCi/L
58tests on record
1.7median pCi/L
Zone 3EPA zone (1993 prediction)

Test results in Sumter County

ResultShareEPA guidance
Below 2 pCi/L62%Below EPA's levels
2 to 4 pCi/L12%Consider fixing
4 pCi/L or more26%EPA recommends fixing

What the data shows

Where Sumter County sits among Florida's 62 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 Sumter County compares

Sumter 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
Marion County43%Polk County28%Sumter County26%Pasco County10%Citrus County10%Lake County3%Hernando County2%Florida 23%
Data table
AreaTests ≥ 4 pCi/LTests
Marion County43%903
Polk County28%617
Sumter County26%58
Pasco County10%154
Citrus County10%162
Lake County3%96
Hernando County2%223
Florida (62 counties)23%53,794

Same source as Sumter County.

What it means for your home

About 1 in 4 results in Sumter 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: 58. 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