Sarona, WI Radon Mitigation and Testing

Q: What is the average radon level in Sarona, WI?

Based on 1 user-submitted tests, the average radon level is 4.00 pCi/L.

Q: What EPA Radon Zone is Sarona in?

Sarona is in Washburn County, EPA Zone 2.

Q: How much does radon mitigation cost in Sarona?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Avg: 4.00 pCi/L

Washburn County

EPA Zone 2

1 user test

Sarona in Washburn County sits in northwestern Wisconsin's lake country, where glacial deposits over Precambrian bedrock create complex geological conditions. Testing data for zip code 54870 remains limited, making local radon assessment difficult for this rural community. Homeowners should test their properties, especially important given Wisconsin's variable radon potential and the common use of basement foundations in northern climates.

4.00

pCi/L average

Above EPA Action Level

Based on 1 user-submitted radon test for homes in Sarona, WI. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Sarona, WI Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

Sarona, WI Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Sarona, Wisconsin Radon Levels

User-submitted radon test readings from homes in the Sarona area.

Radon Level	City	Home Age	Foundation	Submitted
4 pCi/L	Sarona, WI	21-50 Years	Full Basement	Jun 2026

Have a radon test result for Sarona? Submit your reading to help other homeowners.

Sarona Radon Facts

Key details about the radon risk profile for Sarona and the 54870 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Washburn County, WI

Zip Code

54870

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

4.00 pCi/L

User Tests Submitted

Sarona and the 54870 zip code are located in Washburn County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Sarona, WI

What is the average radon level in Sarona, WI?

Based on 1 user-submitted test, the average radon level in Sarona is 4.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Sarona in?

Sarona and the 54870 zip code are in Washburn County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

How much does radon mitigation cost in Sarona?

Radon mitigation in Sarona typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.

Should I test for radon if I'm buying a home in Sarona?

Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.

Most Active Radon Markets in Wisconsin

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Milwaukee	10.00 pCi/L	3
Prairie Du Chien	10.00 pCi/L	2
Stevens Point	5.50 pCi/L	2
Menomonie	10.00 pCi/L	1
Delavan	6.00 pCi/L	1
Shawano	No submissions	0
Sturgeon Bay	No submissions	0