Cairo, MO Radon Mitigation and Testing

Q: What EPA Radon Zone is Cairo in?

Cairo is in Randolph County, EPA Zone 2.

Q: How much does radon mitigation cost in Cairo?

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

Randolph County

EPA Zone 2

Located in Randolph County in north-central Missouri, Cairo (65239) rests on glacial deposits over limestone bedrock where comprehensive radon testing data isn't available. The region's prairie landscape and varied geological conditions can influence radon accumulation patterns unpredictably. Testing provides the most reliable method for residents to assess their individual home's radon levels.

Cairo, MO Radon Mitigation

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

Cairo, MO Radon Testing

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

Cairo Radon Facts

Key details about the radon risk profile for Cairo and the 65239 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Randolph County, MO

Zip Code

65239

Predicted Screening Level

2–4 pCi/L (Zone 2)

Cairo and the 65239 zip code are located in Randolph 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 Cairo, MO

What EPA Radon Zone is Cairo in?

Cairo and the 65239 zip code are in Randolph 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 Cairo?

Radon mitigation in Cairo 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 Cairo?

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 Missouri

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

City	Avg User Radon Level	Submissions
Troy	8.50 pCi/L	4
Lees Summit	7.00 pCi/L	3
Columbia	3.00 pCi/L	2
House Springs	7.00 pCi/L	1
Kansas City	7.00 pCi/L	1
Springfield	7.00 pCi/L	1
Independence	5.00 pCi/L	1
Wentzville	No submissions	0