Fairfield, IA Radon Mitigation and Testing

Q: What is the average radon level in Fairfield, IA?

Based on 2 user-submitted tests, the average radon level is 14.00 pCi/L.

Q: What EPA Radon Zone is Fairfield in?

Fairfield is in Jefferson County, EPA Zone 1.

Q: How much does radon mitigation cost in Fairfield?

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

Avg: 14.00 pCi/L

Jefferson County

EPA Zone 1

2 user tests

Testing in Jefferson County shows radon levels averaging 14.0 pCi/L, significantly exceeding the EPA action level and reflecting Iowa's high radon potential. This southeastern Iowa community in zip code 52556 sits over limestone bedrock with glacial deposits that readily produce radon gas. Residents should prioritize immediate testing and professional mitigation given these elevated readings.

14.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Fairfield, IA Radon Mitigation

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

Fairfield, IA Radon Testing

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

Fairfield, Iowa Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
20 pCi/L	Fairfield, IA	100+ Years	Partial Basement	Nov 2022
8 pCi/L	Fairfield, IA	51-99 Years	Full Basement	Sep 2022

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

Fairfield Radon Facts

Key details about the radon risk profile for Fairfield and the 52556 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Jefferson County, IA

Zip Code

52556

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

14.00 pCi/L

User Tests Submitted

Fairfield and the 52556 zip code are located in Jefferson 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 Fairfield, IA

What is the average radon level in Fairfield, IA?

Based on 2 user-submitted tests, the average radon level in Fairfield is 14.00 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 Fairfield in?

Fairfield and the 52556 zip code are in Jefferson 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 Fairfield?

Radon mitigation in Fairfield 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 Fairfield?

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 Iowa

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

City	Avg User Radon Level	Submissions
Waterloo	8.50 pCi/L	4
Ames	9.67 pCi/L	3
Fairfield	14.00 pCi/L	2
Mount Pleasant	12.00 pCi/L	2
Ottumwa	5.50 pCi/L	2
Iowa City	7.00 pCi/L	1
Muscatine	No submissions	0