Baldwin City is in southern Douglas County, roughly 12 to 15 miles south of Lawrence. The whole county is in EPA Radon Zone 1, the category with the highest predicted indoor radon levels. We are not aware of reliable radon figures specific to Baldwin City, and the EPA says a county zone cannot tell you the level in any one home. Testing is the only way to know.
Baldwin City began as Palmyra, a stop on the Santa Fe Trail, and grew up around Baker University, chartered in 1858 and the oldest four-year university in Kansas. The city incorporated in 1870. That history shows in the housing: older homes around downtown and the campus sit alongside newer neighborhoods built as the town grew from about 3,400 residents in 2000 to 4,826 in 2020, according to Census counts.
A house that has stood for generations has usually been changed many times. Basements get finished, porches get enclosed, furnaces get replaced, and additions go onto slabs or crawl spaces next to an original basement. The Kansas Radon Program recommends testing again after air sealing work, heating and cooling changes, or foundation modifications, because each can change how radon moves into the house.
Older does not automatically mean higher radon, and newer does not mean safe. What older homes often have is a more complicated foundation. The Kansas Radon Program notes that standard soil depressurization systems can be adapted to basements, slabs, crawl spaces and mixed foundations, but a home with several foundation types can call for a more involved design. Read how radon mitigation works.
Baldwin City has a young population for its size. In the 2020 Census, about 21% of residents were 18 to 24, reflecting Baker's students. If you rent, a short-term DIY kit is a simple way to check your unit, and you can share the result with your landlord. Fixing a high result is the owner's decision. Landlords who want documented results or a system installed should use a KDHE certified professional, since Kansas requires certification for anyone who tests or mitigates as a service.
Baldwin City USD 348 serves most of southern Douglas County, including rural homes well outside town. Country homes are in the same Zone 1 county, and a few extra points apply:
For a first screening in a home you own, the Kansas Radon Program distributes low-cost short-term kits through county Extension offices. For a home sale, Kansas guidance calls for a test by a KDHE certified measurement professional; see radon when buying or selling. If the result is 4 pCi/L or higher, the EPA recommends fixing the home. Learn more about radon testing, check typical radon costs, or request a free quote and we will pass it to one local, independent, KDHE certified professional. Near K-10 instead? See radon in Eudora.
Baldwin City is in Douglas County, which the EPA classifies as Radon Zone 1, its highest potential category. That is a prediction for the county, so test your own home to know its level.
Yes. A short-term DIY kit is an easy way to check your unit. Share the result with your landlord, since installing a mitigation system is the owner's decision.
Not necessarily. Radon depends on the soil and how the house interacts with it. Older homes often have remodels and mixed foundations, which affect testing and mitigation design, so test either way.
We serve Lawrence and surrounding Douglas County communities, including the Baldwin City area. Include your location in the form and the professional will confirm scheduling.
Sources: EPA Map of Radon Zones · EPA Kansas radon zone map · KDHE radon laws · KDHE Radon & Real Estate · Kansas Radon Program FAQ · Baker University history · Baldwin City, Kansas (Wikipedia, census tables)
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