Village, Winnebago County, Illinois
Radon Testing in Durand, IL
Updated
IEMA has 52 radon test results on record for Durand. 65.4% came back at or above the EPA's action level of 4.0 pCi/L. That is well above the Winnebago County rate of 36.7%. A standard test runs $150 to $300. The only way to know about one specific house is to test it.
About 1,592 people live in Durand, a Winnebago County village with roughly 705 housing units and a median year built of 1974. It sits near Pecatonica and Rockford. It sits in the far northwest corner of Winnebago County, near the Wisconsin line.
What IEMA's radon test records show
Look past the median to the tail: 11.5% of Durand tests were 20 pCi/L or more, five times the action level. The top reading on record is 84 pCi/L. The average result in Durand is 11.93 pCi/L, against 4.23 for Winnebago County overall. IEMA's own dataset covers tests licensed measurement professionals submitted from 2003 through July 2019, keeping only the highest reading on record per address. That means it is not a random sample and not year-by-year, but it is the closest thing to primary local radon data that Illinois publishes.
| Tests | Avg pCi/L | 4+ pCi/L | 10+ | 20+ | |
|---|---|---|---|---|---|
| Durand | 52 | 11.93 | 65.4% | 34.6% | 11.5% |
| Winnebago County | 7,642 | 4.23 | 36.7% | 7.9% | 1.1% |
Source: IEMA radon test records, Illinois Emergency Management Agency.
The ground under Durand
Underneath Winnebago County, north-central Illinois, sits Ordovician and Silurian dolomite and limestone, the same bedrock family that runs through much of this part of the state, topped by glacial till from the last Ice Age. The EPA's radon zone map puts the county in Zone 1, its top category for predicted indoor levels.
Housing in Durand
Census Bureau, American Community Survey 2020 to 2024 5-year estimates.
| Homes (housing units) | 705 | 125,002 in Winnebago County |
| Median year built | 1974 | 1971 countywide |
| Built before 1980 | 78.3% | 74% countywide |
| Attached (rowhome, townhouse) | 1.1% | 4.3% countywide |
| Mobile homes | 0.9% | 1.3% countywide |
| Renter-occupied | 28.4% | 34.1% countywide |
Most of the housing in Durand went up between the 1940s and the 1970s (78.3% was built before 1980, median year 1974). That era mostly means poured or block basements, which is the standard layout for a sub-slab test and, if needed, a sub-slab mitigation system. With 28.4% of Durand's housing renter-occupied, landlord testing questions come up often. There is no Illinois requirement to test a rental, but plenty of owners do it between tenants when the unit sits empty anyway.
What we do in Durand
Radon testing, Buying or selling a home, and New construction.
Common questions
Is radon a problem in Durand?
Yes. Out of 52 IEMA-recorded tests taken in Durand, 65.4% came in at 4.0 pCi/L or higher, the EPA's action level. That fits Winnebago County's overall Zone 1 rating, the agency's highest-potential class.
What is the highest radon reading on record near Durand?
84 pCi/L, out of 52 IEMA-recorded tests. That is an outlier, not typical, but it shows why testing rather than guessing matters: neighboring houses can differ by a wide margin.
I rent in Durand. Can I get my unit tested?
Nothing in Illinois law stops a tenant from asking for a radon test, and plenty of landlords in Durand test between leases anyway, since an empty unit is the easiest time to do it.
Nearby
Pecatonica (45.5% of tests at 4+ pCi/L), Rockford (36.8% of tests at 4+ pCi/L).
Need radon testing booked in Durand?
Tell us why you're testing and any deadline you're working against. You get a fixed price and a straight answer back.