Mountain City, TN Radon Mitigation and Testing

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

Based on 1 user-submitted tests, the average radon level is 20.00 pCi/L.

Q: What EPA Radon Zone is Mountain City in?

Mountain City is in Johnson County, EPA Zone 2.

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

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

Avg: 20.00 pCi/L

Johnson County

EPA Zone 2

1 user test

Located in Johnson County along Tennessee's northeastern border, Mountain City sits in the Appalachian highlands where uranium-bearing granite bedrock contributes to elevated radon potential. Local testing data shows an average radon level of 20.0 pCi/L, which significantly exceeds the EPA action level of 4.0 pCi/L. Given the mountainous terrain and geological conditions in zip code 37683, all homeowners should prioritize professional radon testing and mitigation.

20.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Mountain City, TN Radon Mitigation

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

Mountain City, TN Radon Testing

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

Mountain City, Tennessee Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
20 pCi/L	Mountain City, TN	21-50 Years	Full Basement	Mar 2019

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

Mountain City Radon Facts

Key details about the radon risk profile for Mountain City and the 37683 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Johnson County, TN

Zip Code

37683

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

20.00 pCi/L

User Tests Submitted

Mountain City and the 37683 zip code are located in Johnson 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 Mountain City, TN

What is the average radon level in Mountain City, TN?

Based on 1 user-submitted test, the average radon level in Mountain City is 20.00 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 Mountain City in?

Mountain City and the 37683 zip code are in Johnson 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 Mountain City?

Radon mitigation in Mountain 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 Mountain 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 Tennessee

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Elizabethton	7.33 pCi/L	3
Cleveland	5.33 pCi/L	3
Johnson City	4.33 pCi/L	3
Maryville	10.50 pCi/L	2
Columbia	8.50 pCi/L	2
Bristol	6.50 pCi/L	2
Chattanooga	5.00 pCi/L	2
Clarksville	20.00 pCi/L	1
Kingsport	5.00 pCi/L	1
Knoxville	4.00 pCi/L	1
Greeneville	No submissions	0
Murfreesboro	No submissions	0