Village, Boone County, Illinois
Radon Testing in Timberlane, IL
Updated
IEMA does not have enough recorded radon tests in Timberlane 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.
Timberlane is a Boone County village in Caledonia Township, just east of Caledonia. It has about 1,278 residents and 429 housing units across 1.75 square miles, denser than most of the townships around it. IEMA does not have a radon test record filed specifically under Timberlane; the Boone County numbers below are the closest real figures available.
The ground under Timberlane
Boone County sits just east of Winnebago County on the same Rock River valley bedrock, dolomite and limestone from the Ordovician and Silurian periods under a layer of Ice Age glacial till. The EPA places Boone County in Radon Zone 1 as well, its highest-potential category.
Housing in Timberlane
Real Census numbers for Timberlane: about 1,278 residents and 429 housing units spread over 1.75 square miles. At roughly 730 people per square mile, it's built up more like a small town than a rural township. At this population size the Census Bureau doesn't break out housing age or tenure separately, so what shows up on the Boone County towns elsewhere on this site is the nearest real comparison, not a Timberlane-specific number.
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 Timberlane
Radon testing, Buying or selling a home, and New construction.
Common questions
Is radon a problem in Timberlane?
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 Timberlane soon. Is there time to test?
Usually yes. A short-term test takes a few days to about a week, which fits inside most inspection periods if it's scheduled early. See our <a href="/real-estate-radon-testing">real estate radon testing</a> page for how that timing works.
Nearby
Caledonia (47.7% of tests at 4+ pCi/L), Boone Township, Belvidere (47.9% of tests at 4+ pCi/L).
Need radon testing booked in Timberlane?
Tell us why you're testing and any deadline you're working against. You get a fixed price and a straight answer back.