Billings, OK Radon Mitigation and Testing

Q: What EPA Radon Zone is Billings in?

Billings is in Noble County, EPA Zone 3.

Q: How much does radon mitigation cost in Billings?

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

Noble County

EPA Zone 3

Located in Noble County in north-central Oklahoma, this small community sits atop Permian-era sedimentary rocks that generally produce lower radon levels. Testing data for zip code 74630 remains limited, making it important for local homeowners to conduct radon testing to establish baseline readings. The area's mixed housing stock includes both older farmsteads and newer manufactured homes on various foundation types.

Billings, OK Radon Mitigation

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

Billings, OK Radon Testing

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

Billings Radon Facts

Key details about the radon risk profile for Billings and the 74630 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Noble County, OK

Zip Code

74630

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Billings and the 74630 zip code are located in Noble County, which has an EPA assigned Radon Zone of 3. A radon zone of 3 predicts an average indoor radon screening level less than 2 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Billings, OK

What EPA Radon Zone is Billings in?

Billings and the 74630 zip code are in Noble County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.

How much does radon mitigation cost in Billings?

Radon mitigation in Billings 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 Billings?

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 Oklahoma

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

City	Avg User Radon Level	Submissions
Tulsa	8.14 pCi/L	7
Oklahoma City	7.00 pCi/L	1
Edmond	5.00 pCi/L	1