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Lexington, KY Radon Levels

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


Lexington, KY Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Fayette County, KY
Zip Code 40502
Avg. User Level 8.40 pCi/L
User Tests 5

Located in Fayette County as the heart of the Lexington Metro area, Lexington shows radon levels averaging 8.4 pCi/L based on local testing data—significantly exceeding the EPA's 4.0 pCi/L action threshold. The region's limestone bedrock and karst geology throughout the Bluegrass region create conditions highly favorable for radon accumulation in homes. Residents in zip codes 40502 and 40503 should prioritize radon testing and mitigation, as current data indicates elevated risk across the area.

8.40
pCi/L average
Above EPA Action Level

Based on 5 user-submitted radon tests for homes in Lexington, KY. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Lexington, KY Radon Mitigation

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

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Lexington, KY Radon Levels

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

Radon LevelCityHome AgeFoundation
6 pCi/L Lexington, KY 0-20 Years Full Basement
9 pCi/L Lexington, KY 0-20 Years No Basement/All Slab
6 pCi/L Lexington, KY 0-20 Years Full Basement
6 pCi/L Lexington, KY 21-50 Years No Basement/All Slab
15 pCi/L Lexington, KY 51-99 Years No Basement/All Crawl Space

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

Radon Readings Near Lexington, KY

Compare radon levels in Lexington with the closest nearby cities that have user-submitted test data.

CityDistanceAvg User LevelReadings
Nicholasville 10.8 mi 8.00 pCi/L 1
Versailles 12.5 mi 20.00 pCi/L 1
Georgetown 13.1 mi 15.00 pCi/L 1
Winchester 17.7 mi 5.00 pCi/L 1
Lawrenceburg 23.4 mi 5.00 pCi/L 1
Frankfort 24.0 mi 7.80 pCi/L 5
Harrodsburg 25.1 mi 9.00 pCi/L 2
Cynthiana 27.8 mi 5.00 pCi/L 1

Fayette County Radon Profile

Because of its underlying geology, Fayette County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Homeowner-submitted tests from 1 city in Fayette County average 8.40 pCi/L across 5 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Fayette County home regardless of zone or a neighbor's results.

Radon FAQ for Lexington, KY

What is the average radon level in Lexington, KY?
Based on 5 user-submitted tests, the average radon level in Lexington is 8.40 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 Lexington in?
Lexington and the 40502 zip code are in Fayette County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.
How much does radon mitigation cost in Lexington?
Radon mitigation in Lexington 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 Lexington?
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.