Richmond, KY Radon Levels

Q: What EPA Radon Zone is Richmond in?

Richmond is in Madison County, EPA Zone 2.

Q: How much does radon mitigation cost in Richmond?

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

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

Richmond, KY Radon Facts

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

County Madison County, KY

Zip Code 40475

Located in Madison County in central Kentucky, Richmond sits on limestone-rich geology typical of the Bluegrass region that can contribute to elevated radon potential. Testing data for zip code 40475 remains limited, but the area's geological characteristics suggest homeowners should prioritize radon assessment. Kentucky's karst topography and limestone bedrock often produce radon levels that warrant regular monitoring.

10.35

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 10.35 pCi/L, based on 17 tests from 10 nearby cities. No readings have been submitted for Richmond yet, so the closest recorded data is shown as a benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Richmond, KY Radon Mitigation

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

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Radon Readings Near Richmond, KY

No homeowner tests have been submitted for Richmond yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
Nicholasville	17.1 mi	8.00 pCi/L	1
Winchester	17.3 mi	5.00 pCi/L	1
Lexington	21.9 mi	8.40 pCi/L	5
Danville	27.2 mi	10.33 pCi/L	3
Mount Sterling	28.4 mi	12.00 pCi/L	1
Versailles	30.8 mi	20.00 pCi/L	1
Harrodsburg	31.0 mi	9.00 pCi/L	2
Georgetown	34.6 mi	15.00 pCi/L	1

Madison County Radon Profile

EPA mapping assigns Madison County to Radon Zone 2, indicating moderate predicted indoor screening levels in the 2 to 4 pCi/L range based on regional geology. Direct test data for Madison County remains limited, so the closest neighboring readings are used here to represent the radon conditions homeowners are likely to encounter. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Madison County home regardless of zone or a neighbor's results.

Radon FAQ for Richmond, KY

What EPA Radon Zone is Richmond in?

Richmond and the 40475 zip code are in Madison 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.

Why are radon readings shown from areas near Richmond?

No homeowner radon tests have been submitted for Richmond yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Madison County average—are the best available indicator of local conditions until Richmond homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.

How much does radon mitigation cost in Richmond?

Radon mitigation in Richmond 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 Richmond?

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.