Mount Vernon, OH Radon Mitigation and Testing

Q: What is the average radon level in Mount Vernon, OH?

Based on 2 user-submitted tests, the average radon level is 5.50 pCi/L.

Q: What EPA Radon Zone is Mount Vernon in?

Mount Vernon is in Knox County, EPA Zone 1.

Q: How much does radon mitigation cost in Mount Vernon?

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

Avg: 5.50 pCi/L

Knox County

EPA Zone 1

2 user tests

Mount Vernon is located in Knox County, Ohio. With 2 user-submitted readings averaging 5.50 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 43050 zip code.

5.50

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Mount Vernon, OH Radon Mitigation

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

Mount Vernon, OH Radon Testing

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

Mount Vernon, Ohio Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
6 pCi/L	Mount Vernon, OH	51-99 Years	Partial Basement	Jan 2025
5 pCi/L	Mount Vernon, OH	21-50 Years	Full Basement	May 2017

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

Mount Vernon Radon Facts

Key details about the radon risk profile for Mount Vernon and the 43050 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Knox County, OH

Zip Code

43050

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

5.50 pCi/L

User Tests Submitted

Mount Vernon and the 43050 zip code are located in Knox County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Mount Vernon, OH

What is the average radon level in Mount Vernon, OH?

Based on 2 user-submitted tests, the average radon level in Mount Vernon is 5.50 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 Mount Vernon in?

Mount Vernon and the 43050 zip code are in Knox 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 Mount Vernon?

Radon mitigation in Mount Vernon 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 Mount Vernon?

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 Ohio

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

City	Avg User Radon Level	Submissions
Marietta	8.00 pCi/L	5
Cincinnati	5.20 pCi/L	5
Hilliard	11.75 pCi/L	4
Wilmington	5.25 pCi/L	4
Newark	15.00 pCi/L	3
Athens	11.33 pCi/L	3
Findlay	10.33 pCi/L	3
Perrysburg	9.67 pCi/L	3
Powell	8.33 pCi/L	3
Columbus	6.00 pCi/L	3
Chagrin Falls	4.67 pCi/L	3
Hamilton	10.00 pCi/L	2
Chardon	5.50 pCi/L	2
Strongsville	4.50 pCi/L	2
Maineville	10.00 pCi/L	1
Lancaster	9.00 pCi/L	1
West Chester	9.00 pCi/L	1
Amherst	6.00 pCi/L	1
Chillicothe	6.00 pCi/L	1
Lima	5.00 pCi/L	1