KS
Radon Test Kits in Kansas
Johnson County Extension in Olathe and Wyandotte County Extension in Kansas City, Kansas, sell $15 kits. The free Kansas Radon Project kit is paused. By mail, Kansas State University's kit is $20 short-term or $30 long-term.
We checked this on October 1, 2026. Confirm the official page before you travel. Prices and stock change.
Where to get a kit
Johnson County Extension radon kits: $15
Johnson County Extension sells a do-it-yourself radon kit for $15 at its Olathe office. You have to pick it up.
Buy in person (call to confirm stock):
- Johnson County Extension office, 11811 S. Sunset Drive, Suite 1500, Monday to Friday, 8:30 a.m. to 5 p.m., 913-715-7000
Wyandotte County Extension radon kits: $15
Wyandotte County K-State Extension in Kansas City, Kansas, sells a do-it-yourself radon kit for $15, including shipping on its PayPal button.
Buy in person (call to confirm stock):
- Wyandotte County K-State Research and Extension, 1216 North 79th St, 913-299-9300
Kansas Radon Project no-cost kit
No-cost kits for Kansas residents. Mailing is paused. You can join the waitlist.
Questions: Kansas Radon Program hotline, 1-800-693-5343.
Kansas State University mail-in kit: $20
Mail-in lab kit, lab fee included. Mail it back within 10 days.
Or call 1-800-767-7236.
Lung cancer program in Kansas: Kansas Radon Project, free, paused right now.
One test, or keep watching
One test: $15
A lab kit from the program above. Good for a first look. One test is a snapshot, not a pattern.
Keep watching: Airthings Corentium Home 2, $179.99
New readings every day for as long as you own it. Good if you want to know, not guess. Price checked October 1, 2026.
If you buy through our Airthings link, we may earn a commission. You don't pay extra. Add your name and shipping, then enter ARS10-10OFF. The link does not apply the code by itself.
Partners
K-State Research and Extension, Johnson County. Lab fee and return postage included.
K-State Research and Extension, Wyandotte County. Shipping included on its PayPal button.
Kansas Radon Project. No-cost kits for Kansans. Mailing was paused on October 1, 2026. What to do while mailing is paused