Imperial, MO Radon Levels

Q: What is the average radon level in Imperial, MO?

Based on 1 user-submitted tests, the average radon level is 13.00 pCi/L.

Q: What EPA Radon Zone is Imperial in?

Imperial is in Jefferson County, EPA Zone 2.

Q: How much does radon mitigation cost in Imperial?

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

Check local Imperial radon levels and find certified testing and mitigation professionals to keep your home safe

Imperial, MO Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Jefferson County, MO

Zip Code 63052

Avg. User Level 13.00 pCi/L

User Tests 1

Part of the St. Louis Metro area in Jefferson County, Imperial sits on Ozark plateau geology with limestone and dolomite bedrock that contributes to elevated radon potential. Testing data shows homes in zip code 63052 average 13.0 pCi/L, which significantly exceeds the EPA action level of 4.0 pCi/L. The area's karst topography and underlying limestone formations create ideal conditions for radon production and migration into basements and lower levels.

13.00

pCi/L average

Above EPA Action Level

Based on 1 user-submitted radon test for homes in Imperial, MO. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Imperial, MO Radon Mitigation

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

Need Radon Mitigation or Testing in Imperial?

100% Free, No-Obligation Quotes
Matches You with State-Licensed Jefferson County Pros

1-800-299-3578 636-205-4618 (local) Toll-free · Mon–Fri 8am–6pm ET

Imperial, Missouri Radon Levels

User-submitted radon test readings from homes in the Imperial area.

Radon Level	City	Home Age	Foundation	Submitted
13 pCi/L	Imperial, MO	0-20 Years	Full Basement	Feb 2020

Have a radon test result for Imperial? Submit your reading to help other homeowners.

Jefferson County Radon Profile

Jefferson County is mapped as EPA Radon Zone 2, where the local geology is predicted to produce moderate indoor screening levels between 2 and 4 pCi/L. Homeowner-submitted tests from 5 cities in Jefferson County average 8.86 pCi/L across 7 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Jefferson County.

Radon FAQ for Imperial, MO

What is the average radon level in Imperial, MO?

Based on 1 user-submitted test, the average radon level in Imperial is 13.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Imperial in?

Imperial and the 63052 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 Imperial?

Radon mitigation in Imperial 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 Imperial?

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.

Radon Levels Near Imperial, MO

User-submitted radon levels from the cities closest to Imperial with recorded test data. Explore nearby communities to compare local readings.

City	Distance	Avg User Level	Submissions
Arnold	3.2 mi	10.50 pCi/L	2
House Springs	6.5 mi	7.00 pCi/L	1
Fenton	6.7 mi	16.00 pCi/L	2
Ballwin	14.0 mi	4.00 pCi/L	1
Festus	15.1 mi	5.00 pCi/L	2
Chesterfield	17.8 mi	5.00 pCi/L	1
De Soto	20.8 mi	11.00 pCi/L	1
Labadie	25.0 mi	4.00 pCi/L	1