40%tests ≥ 4 pCi/L
1,117tests on record
3.4median pCi/L
Zone 2EPA zone (1993 prediction)

Test results in Bonneville County

ResultShareEPA guidance
Below 2 pCi/L22%Below EPA's levels
2 to 4 pCi/L38%Consider fixing
4 pCi/L or more40%EPA recommends fixing

What the data shows

Where Bonneville County sits among Idaho's 44 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 Bonneville County compares

Bonneville County has the lowest 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
Lincoln County, Wyoming68%Jefferson County67%Madison County64%Teton County53%Bingham County52%Teton County, Wyoming45%Caribou County44%Bonneville County40%Idaho 42%
Data table
AreaTests ≥ 4 pCi/LTests
Lincoln County, Wyoming68%142
Jefferson County67%207
Madison County64%314
Teton County53%473
Bingham County52%446
Teton County, Wyoming45%278
Caribou County44%57
Bonneville County40%1,117
Idaho (44 counties)42%12,961

Same source as Bonneville County.

What it means for your home

About 1 in 2 results in Bonneville 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: 1,117. 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