Maryville, TN Radon Levels

Q: What is the average radon level in Maryville, TN?

Based on 2 user-submitted tests, the average radon level is 10.50 pCi/L.

Q: What EPA Radon Zone is Maryville in?

Maryville is in Blount County, EPA Zone 1.

Q: How much does radon mitigation cost in Maryville?

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

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

Maryville, TN Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Blount County, TN

Zip Code 37801

Avg. User Level 10.50 pCi/L

User Tests 2

Nestled in Blount County within the Knoxville metropolitan area, Maryville rests in the foothills of the Great Smoky Mountains where complex geology creates significant radon risks. Testing data across zip codes 37801, 37803, and 37804 reveals an average indoor radon level of 10.5 pCi/L, more than double the EPA's recommended action level. The combination of mountainous terrain and varied bedrock formations makes professional radon testing crucial for all area homeowners.

10.50

pCi/L average

Above EPA Action Level

Based on 2 user-submitted radon tests for homes in Maryville, TN. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Maryville, TN Radon Mitigation

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

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Maryville, Tennessee Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
15 pCi/L	Maryville, TN	21-50 Years	No Basement/All Crawl Space	Jul 2022
6 pCi/L	Maryville, TN	0-20 Years	No Basement/All Slab	Dec 2016

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

Blount County Radon Profile

Because of its underlying geology, Blount 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 2 cities in Blount County average 13.67 pCi/L across 3 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 Blount County home regardless of zone or a neighbor's results.

Radon FAQ for Maryville, TN

What is the average radon level in Maryville, TN?

Based on 2 user-submitted tests, the average radon level in Maryville is 10.50 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 Maryville in?

Maryville and the 37801 zip code are in Blount 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 Maryville?

Radon mitigation in Maryville 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 Maryville?

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 Maryville, TN

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

City	Distance	Avg User Level	Submissions
Walland	9.5 mi	20.00 pCi/L	1
Lenoir City	15.6 mi	8.00 pCi/L	1
Vonore	16.4 mi	9.00 pCi/L	1
Knoxville	17.5 mi	4.00 pCi/L	1
Loudon	20.1 mi	9.00 pCi/L	1