Crystal City, MO Radon Mitigation and Testing

Q: What EPA Radon Zone is Crystal City in?

Crystal City is in Jefferson County, EPA Zone 2.

Q: How much does radon mitigation cost in Crystal City?

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

Jefferson County

EPA Zone 2

Situated in Jefferson County within the St. Louis Metro area, Crystal City lies along the Mississippi River corridor where alluvial deposits meet underlying limestone formations. While comprehensive radon testing data remains limited for zip code 63019, the geological conditions common to eastern Missouri suggest potential for elevated indoor radon levels. Homeowners in this area should prioritize radon testing, particularly in homes with basements or crawl spaces.

Crystal City, MO Radon Mitigation

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

Crystal City, MO Radon Testing

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

Crystal City Radon Facts

Key details about the radon risk profile for Crystal City and the 63019 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Jefferson County, MO

Zip Code

63019

Predicted Screening Level

2–4 pCi/L (Zone 2)

Crystal City and the 63019 zip code are located in Jefferson 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 Crystal City, MO

What EPA Radon Zone is Crystal City in?

Crystal City and the 63019 zip code are in Jefferson 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 Crystal City?

Radon mitigation in Crystal City 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 Crystal City?

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