Township, Boone County, Illinois
Radon Testing in Leroy Township, IL
Updated
IEMA does not have enough recorded radon tests in Leroy Township to break out separately yet. Boone County, Illinois as a whole sits in the EPA's Radon Zone 1, its highest-potential category, so testing is worth doing regardless.
Leroy Township is Boone County's least populous township, in the county's northeast corner. It has an estimated 390 residents and 165 housing units across 31.3 square miles, about 12 people per square mile.
The ground under Leroy Township
East of Winnebago County, Boone County shares the same underlying bedrock: Ordovician and Silurian dolomite and limestone, buried under glacial till left by the last Ice Age. That geology puts Boone County in the EPA's Radon Zone 1 too, the agency's highest-potential classification.
Housing in Leroy Township
Leroy Township has an estimated population of 390 and 165 housing units across 31.3 square miles. That's about 12 people per square mile, thin enough that most of the land here is farmland, not subdivisions. The Census Bureau doesn't separately publish a detailed housing-age or tenure breakdown at this population size, so Boone County's own numbers, on the other Boone County pages on this site, are the closest real context for Leroy Township specifically, not a figure unique to it.
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates (via Census Reporter) and 2024 TIGER/Line county subdivision and place boundaries.
What we do in Leroy Township
Radon testing, Buying or selling a home, and New construction.
Common questions
Is radon a problem in Leroy Township?
Boone County sits in EPA Radon Zone 1, the highest-potential category, so yes, testing is worth doing regardless of the specific house.
We're closing on a house in Leroy Township soon. Is there time to test?
In most cases, yes. Scheduled early in the inspection period, a short-term test (a few days to about a week) has time to come back before you need to decide anything. Details on our <a href="/real-estate-radon-testing">real estate radon testing</a> page.
Nearby
Manchester Township, Caledonia (47.7% of tests at 4+ pCi/L), Timberlane.
Need radon testing booked in Leroy Township?
Tell us why you're testing and any deadline you're working against. You get a fixed price and a straight answer back.