5%tests ≥ 4 pCi/L
38tests on record
0.4median pCi/L
Zone 2EPA zone (1993 prediction)

Test results in Klamath County

ResultShareEPA guidance
Below 2 pCi/L87%Below EPA's levels
2 to 4 pCi/L8%Consider fixing
4 pCi/L or more5%EPA recommends fixing

What the data shows

Where Klamath County sits among Oregon's 34 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%10%20%30%40%50%

How Klamath County compares

Klamath County ranks 5 of 7 among its neighboursShare of tests at or above 4 pCi/L · Radon test results from laboratories, 2008–2017 · whisker: 95% range
Siskiyou County, Californ…25%Lane County9%Douglas County9%Jackson County5%Klamath County5%Deschutes County4%Lake County0%Oregon 25%
Data table
AreaTests ≥ 4 pCi/LTests
Siskiyou County, California25%8
Lane County9%405
Douglas County9%34
Jackson County5%113
Klamath County5%38
Deschutes County4%159
Lake County0%4
Oregon (34 counties)25%23,951

Same source as Klamath County. Other bordering counties: Modoc County, California.

What it means for your home

About 1 in 19 results in Klamath 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: 38. 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