Hilliard, OH Radon Mitigation and Testing

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

Based on 4 user-submitted tests, the average radon level is 11.80 pCi/L.

Q: What EPA Radon Zone is Hilliard in?

Hilliard is in Franklin County, EPA Zone 1.

Q: How much does radon mitigation cost in Hilliard?

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

Avg: 11.80 pCi/L

Franklin County

EPA Zone 1

4 user tests

Hilliard is located in Franklin County, Ohio. With 4 user-submitted readings averaging 11.80 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 43026 zip code.

11.80

pCi/L average

Above EPA Action Level

Based on 4 user-submitted radon tests for homes in Hilliard, OH. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Hilliard, OH Radon Mitigation

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

Hilliard, OH Radon Testing

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

Hilliard, Ohio Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
20 pCi/L	Hilliard, OH	21-50 Years	Partial Basement	Sep 2024
4 pCi/L	Hilliard, OH	21-50 Years	Partial Basement	Jun 2023
6 pCi/L	Hilliard, OH	21-50 Years	Partial Basement	Feb 2023
17 pCi/L	Hilliard, OH	21-50 Years	Partial Basement	Jul 2019

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

Hilliard Radon Facts

Key details about the radon risk profile for Hilliard and the 43026 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Franklin County, OH

Zip Code

43026

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

11.80 pCi/L

User Tests Submitted

Hilliard and the 43026 zip code are located in Franklin 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 Hilliard, OH

What is the average radon level in Hilliard, OH?

Based on 4 user-submitted tests, the average radon level in Hilliard is 11.80 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 Hilliard in?

Hilliard and the 43026 zip code are in Franklin 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 Hilliard?

Radon mitigation in Hilliard 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 Hilliard?

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