31%properties ≥ 4 pCi/L
16properties tested annually (avg.)
2.7median pCi/L
Zone 1EPA zone (1993 prediction)

Highest result per tested property in Wadena County

ResultShareEPA guidance
Below 2 pCi/L28%Below EPA's levels
2 to 4 pCi/L42%Consider fixing
4 pCi/L or more31%EPA recommends fixing

What the data shows

Where Wadena County sits among Minnesota's 87 counties with dataEach dot is a county's share of tests at or above 4 pCi/L · Minnesota county radon testing indicators, 2016–2025
0%20%40%60%80%

How Wadena County compares

Wadena County has the lowest share of high results among its neighboursShare of properties at or above 4 pCi/L · Minnesota county radon testing indicators, 2016–2025
Otter Tail County60%Becker County54%Todd County43%Hubbard County39%Cass County32%Wadena County31%
Data table
AreaProperties ≥ 4 pCi/L
Otter Tail County60%
Becker County54%
Todd County43%
Hubbard County39%
Cass County32%
Wadena County31%

Same source as Wadena County.

What it means for your home

About 1 in 3 results in Wadena 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 →

Minnesota licenses radon mitigators. Source

Buying or selling here

Minnesota's Radon Awareness Act requires sellers to disclose in writing any known radon tests, results and mitigation, and to give buyers the Department of Health publication "Radon in Real Estate Transactions" (Minn. Stat. § 144.496). Source

Checked against the official text on 2026-11-03. Not legal advice.

About this data

Source: Minnesota county radon testing indicators (Minnesota Department of Health). Period: 2016–2025. Published indicators: 50 properties at or above 4 pCi/L, 118 at or above 2 pCi/L, and 16 properties tested annually on average. 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