Northfield, MN Radon Mitigation and Testing

Q: What is the average radon level in Northfield, MN?

Based on 2 user-submitted tests, the average radon level is 4.50 pCi/L.

Q: What EPA Radon Zone is Northfield in?

Northfield is in Rice County, EPA Zone 1.

Q: How much does radon mitigation cost in Northfield?

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

Avg: 4.50 pCi/L

Rice County

EPA Zone 1

2 user tests

Northfield in Rice County shows radon levels averaging 4.5 pCi/L, just above the EPA's 4.0 pCi/L action threshold, indicating the need for resident attention. This Minneapolis-St. Paul metro area community sits above glacial deposits and underlying limestone bedrock that contribute to radon production throughout southeastern Minnesota. Residents of zip code 55057 should consider radon testing, especially in the area's characteristic basement-equipped homes from various construction eras.

4.50

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Northfield, MN Radon Mitigation

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

Northfield, MN Radon Testing

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

Northfield, Minnesota Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
4 pCi/L	Northfield, MN	51-99 Years	Partial Basement	Aug 2022
5 pCi/L	Northfield, MN	100+ Years	Full Basement	Nov 2021

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

Northfield Radon Facts

Key details about the radon risk profile for Northfield and the 55057 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Rice County, MN

Zip Code

55057

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

4.50 pCi/L

User Tests Submitted

Northfield and the 55057 zip code are located in Rice County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Northfield, MN

What is the average radon level in Northfield, MN?

Based on 2 user-submitted tests, the average radon level in Northfield is 4.50 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 Northfield in?

Northfield and the 55057 zip code are in Rice County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

How much does radon mitigation cost in Northfield?

Radon mitigation in Northfield 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 Northfield?

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 Minnesota

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

City	Avg User Radon Level	Submissions
Savage	5.00 pCi/L	3
Faribault	10.00 pCi/L	2
Shakopee	6.50 pCi/L	2
Minneapolis	5.00 pCi/L	2
Lakeville	6.00 pCi/L	1
Delano	5.00 pCi/L	1
Montgomery	5.00 pCi/L	1
Rosemount	No submissions	0