Green Bay, WI Radon Mitigation and Testing

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

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

Q: What EPA Radon Zone is Green Bay in?

Green Bay is in Brown County, EPA Zone 2.

Q: How much does radon mitigation cost in Green Bay?

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

Brown County

EPA Zone 2

1 user test

Green Bay is located in Brown County, Wisconsin. With 1 user-submitted readings averaging 4.00 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 54301 zip code.

4.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Green Bay, WI Radon Mitigation

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

Green Bay, WI Radon Testing

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

Green Bay, Wisconsin Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
4 pCi/L	Green Bay, WI	21-50 Years	Partial Basement	Feb 2024

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

Green Bay Radon Facts

Key details about the radon risk profile for Green Bay and the 54301 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Brown County, WI

Zip Code

54301

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

4.00 pCi/L

User Tests Submitted

Green Bay and the 54301 zip code are located in Brown 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 Green Bay, WI

What is the average radon level in Green Bay, WI?

Based on 1 user-submitted test, the average radon level in Green Bay 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 Green Bay in?

Green Bay and the 54301 zip code are in Brown 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 Green Bay?

Radon mitigation in Green Bay 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 Green Bay?

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