Davis, IL Radon Levels

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

Based on 1 user-submitted tests, the average radon level is 8.00 pCi/L.

Q: What EPA Radon Zone is Davis in?

Davis is in Stephenson County, EPA Zone 1.

Q: How much does radon mitigation cost in Davis?

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

Check local Davis radon levels and find certified testing and mitigation professionals to keep your home safe

Davis, IL Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Stephenson County, IL

Zip Code 61019

Avg. User Level 8.00 pCi/L

User Tests 1

Positioned in Stephenson County within the Rockford Metro area, Davis recorded a radon level of 8.0 pCi/L in recent testing, well above the EPA action threshold requiring mitigation. This northwestern Illinois community sits on glacial till deposits over Ordovician limestone bedrock, geological conditions that promote radon production and migration. Homeowners in zip code 61019 should conduct testing and pursue mitigation if needed, particularly in homes with full basements typical of the region.

8.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Davis, IL Radon Mitigation

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Davis, Illinois Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
8 pCi/L	Davis, IL	21-50 Years	Full Basement	Nov 2022

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

Stephenson County Radon Profile

Because of its underlying geology, Stephenson County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Homeowner-submitted tests from 3 cities in Stephenson County average 6.60 pCi/L across 5 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Stephenson County home regardless of zone or a neighbor's results.

Radon FAQ for Davis, IL

What is the average radon level in Davis, IL?

Based on 1 user-submitted test, the average radon level in Davis is 8.00 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 Davis in?

Davis and the 61019 zip code are in Stephenson 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 Davis?

Radon mitigation in Davis 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 Davis?

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.

Radon Levels Near Davis, IL

User-submitted radon levels from the cities closest to Davis with recorded test data. Explore nearby communities to compare local readings.

City	Distance	Avg User Level	Submissions
Pecatonica	9.9 mi	11.00 pCi/L	1
Orangeville	12.3 mi	14.00 pCi/L	1
Freeport	15.3 mi	3.67 pCi/L	3
Rockton	16.2 mi	6.00 pCi/L	1
South Beloit	19.4 mi	4.00 pCi/L	1
Roscoe	21.1 mi	5.50 pCi/L	2
Byron	22.8 mi	11.50 pCi/L	2
Stillman Valley	25.0 mi	5.00 pCi/L	1