Fort Sill, OK Radon Mitigation and Testing

Q: What EPA Radon Zone is Fort Sill in?

Fort Sill is in Comanche County, EPA Zone 3.

Q: How much does radon mitigation cost in Fort Sill?

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

Comanche County

EPA Zone 3

Located in Comanche County, Fort Sill operates under Oklahoma's EPA Zone 3 low radon potential classification in zip code 73503. Current radon testing data for the military installation is limited, though the region's sedimentary geology typically produces lower radon levels. Military families and civilian residents should still consider periodic testing, as individual properties can vary significantly from regional averages.

Fort Sill, OK Radon Mitigation

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

Fort Sill, OK Radon Testing

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

Fort Sill Radon Facts

Key details about the radon risk profile for Fort Sill and the 73503 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Comanche County, OK

Zip Code

73503

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Fort Sill and the 73503 zip code are located in Comanche 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 Fort Sill, OK

What EPA Radon Zone is Fort Sill in?

Fort Sill and the 73503 zip code are in Comanche 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 Fort Sill?

Radon mitigation in Fort Sill 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 Fort Sill?

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