Fargo, OK Radon Mitigation and Testing

Q: What EPA Radon Zone is Fargo in?

Fargo is in Ellis County, EPA Zone 2.

Q: How much does radon mitigation cost in Fargo?

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

Ellis County

EPA Zone 2

Positioned in western Oklahoma's Ellis County, this rural Fargo community sits atop the Great Plains' sedimentary bedrock formations that typically generate moderate radon levels across the region. The area's scattered residential properties include older farmsteads with partial basements, manufactured homes on pier foundations, and newer rural construction with varying foundation types. With testing data for ZIP 73840 currently unavailable but carrying an EPA Zone 2 designation, homeowners should consider radon testing, especially for properties with basements or enclosed crawl spaces.

Fargo, OK Radon Mitigation

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

Fargo, OK Radon Testing

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

Fargo Radon Facts

Key details about the radon risk profile for Fargo and the 73840 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Ellis County, OK

Zip Code

73840

Predicted Screening Level

2–4 pCi/L (Zone 2)

Fargo and the 73840 zip code are located in Ellis 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 Fargo, OK

What EPA Radon Zone is Fargo in?

Fargo and the 73840 zip code are in Ellis 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 Fargo?

Radon mitigation in Fargo 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 Fargo?

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