Columbus, MT Radon Mitigation and Testing

Q: What is the average radon level in Columbus, MT?

Based on 1 user-submitted tests, the average radon level is 9.00 pCi/L.

Q: What EPA Radon Zone is Columbus in?

Columbus is in Stillwater County, EPA Zone 1.

Q: How much does radon mitigation cost in Columbus?

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

Avg: 9.00 pCi/L

Stillwater County

EPA Zone 1

1 user test

Nestled in Stillwater County within the Billings Metro area, Columbus sits on glacial deposits over sedimentary bedrock in south-central Montana. Local testing reveals an average radon level of 9.0 pCi/L, which significantly exceeds the EPA action threshold of 4.0 pCi/L. Homeowners in zip code 59019 should prioritize radon testing and mitigation given the area's elevated readings.

9.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Columbus, MT Radon Mitigation

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

Columbus, MT Radon Testing

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

Columbus, Montana Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
9 pCi/L	Columbus, MT	100+ Years	Full Basement	Mar 2023

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

Columbus Radon Facts

Key details about the radon risk profile for Columbus and the 59019 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Stillwater County, MT

Zip Code

59019

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

9.00 pCi/L

User Tests Submitted

Columbus and the 59019 zip code are located in Stillwater 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 Columbus, MT

What is the average radon level in Columbus, MT?

Based on 1 user-submitted test, the average radon level in Columbus is 9.00 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 Columbus in?

Columbus and the 59019 zip code are in Stillwater 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 Columbus?

Radon mitigation in Columbus 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 Columbus?

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 Montana

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

City	Avg User Radon Level	Submissions
Butte	10.20 pCi/L	10
Missoula	6.25 pCi/L	8
Florence	11.67 pCi/L	3
Bozeman	10.33 pCi/L	3
Helena	8.67 pCi/L	3
Stevensville	7.67 pCi/L	3
Sidney	7.33 pCi/L	3
Billings	5.33 pCi/L	3
Miles City	3.33 pCi/L	3
Kalispell	7.50 pCi/L	2
Great Falls	4.50 pCi/L	2
Whitefish	4.00 pCi/L	2
Ennis	9.00 pCi/L	1
Livingston	No submissions	0