Oak Park, IL Radon Mitigation and Testing

Q: What is the average radon level in Oak Park, IL?

Based on 3 user-submitted tests, the average radon level is 5.30 pCi/L.

Q: What EPA Radon Zone is Oak Park in?

Oak Park is in Cook County, EPA Zone 2.

Q: How much does radon mitigation cost in Oak Park?

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

Avg: 5.30 pCi/L

Cook County

EPA Zone 2

3 user tests

This historic Cook County community in the Chicago Metro area shows an average radon level of 6.0 pCi/L, which exceeds the EPA action level of 4.0 pCi/L. Built largely in the early-to-mid 1900s with full basements over glacial till and limestone bedrock, Oak Park's housing stock creates ideal conditions for radon accumulation, making testing and mitigation essential for homeowners across zip codes 60301, 60302, and 60304.

5.30

pCi/L average

Above EPA Action Level

Based on 3 user-submitted radon tests for homes in Oak Park, IL. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Oak Park, IL Radon Mitigation

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

Oak Park, IL Radon Testing

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

Oak Park, Illinois Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
5 pCi/L	Oak Park, IL	100+ Years	Full Basement	Jun 2024
7 pCi/L	Oak Park, IL	51-99 Years	Full Basement	Jan 2017

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

Oak Park Radon Facts

Key details about the radon risk profile for Oak Park and the 60301 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Cook County, IL

Zip Code

60301

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

5.30 pCi/L

User Tests Submitted

Oak Park and the 60301 zip code are located in Cook 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 Oak Park, IL

What is the average radon level in Oak Park, IL?

Based on 3 user-submitted tests, the average radon level in Oak Park is 5.30 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 Oak Park in?

Oak Park and the 60301 zip code are in Cook 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 Oak Park?

Radon mitigation in Oak Park 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 Oak Park?

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 Illinois

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

City	Avg User Radon Level	Submissions
Buffalo Grove	6.10 pCi/L	10
Crystal Lake	7.25 pCi/L	8
Lake Zurich	6.00 pCi/L	7
Grayslake	5.00 pCi/L	7
New Lenox	10.17 pCi/L	6
Park Ridge	7.00 pCi/L	6
Arlington Heights	6.17 pCi/L	6
Waterloo	9.20 pCi/L	5
Palatine	7.80 pCi/L	5
Round Lake	7.80 pCi/L	5
Northbrook	6.20 pCi/L	5
Mchenry	11.00 pCi/L	4
Dekalb	8.75 pCi/L	4
Columbia	8.00 pCi/L	4
Lisle	7.25 pCi/L	4
Normal	7.25 pCi/L	4
Antioch	7.00 pCi/L	4
Elk Grove Village	7.00 pCi/L	4
Aurora	6.75 pCi/L	4
Hoffman Estates	6.75 pCi/L	4