Necedah, WI Radon Mitigation and Testing

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

Based on 2 user-submitted tests, the average radon level is 7.50 pCi/L.

Q: What EPA Radon Zone is Necedah in?

Necedah is in Juneau County, EPA Zone 2.

Q: How much does radon mitigation cost in Necedah?

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

Avg: 7.50 pCi/L

Juneau County

EPA Zone 2

2 user tests

Necedah in Juneau County shows an average radon level of 7.5 pCi/L, well above the EPA action threshold. The 54646 zip code area sits on glacial outwash deposits over Cambrian sandstone, creating conditions that allow radon accumulation in homes. Residents should prioritize radon testing and consider mitigation systems, especially in properties with basement foundations.

7.50

pCi/L average

Above EPA Action Level

Based on 2 user-submitted radon tests for homes in Necedah, WI. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Necedah, WI Radon Mitigation

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

Necedah, WI Radon Testing

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

Necedah, Wisconsin Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
9 pCi/L	Necedah, WI	0-20 Years	Full Basement	Oct 2025
6 pCi/L	Necedah, WI	0-20 Years	No Basement/All Slab	Apr 2021

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

Necedah Radon Facts

Key details about the radon risk profile for Necedah and the 54646 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Juneau County, WI

Zip Code

54646

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

7.50 pCi/L

User Tests Submitted

Necedah and the 54646 zip code are located in Juneau 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 Necedah, WI

What is the average radon level in Necedah, WI?

Based on 2 user-submitted tests, the average radon level in Necedah is 7.50 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 Necedah in?

Necedah and the 54646 zip code are in Juneau 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 Necedah?

Radon mitigation in Necedah 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 Necedah?

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