Where are you with radon?
- I want to test my home Which kit to use, where to put it and how long to leave it.
- I have a test result At 4.0 pCi/L or higher, contact a certified mitigation contractor; between 2.0 and 4.0, consider mitigation.3
- My result is high Radon problems can be fixed. The most common system is estimated at $1,500 to $2,500 installed.3
- I’m buying or selling a home What Vermont law requires, and quick tests for a sale.
- I’m on a well or spring How to test your water and what the advisory level means.
- I want my town’s numbers Health Department test results for every Vermont town, city, gore and grant.
Radon in every Vermont town
Each town is shaded by its share of results at or above 4.0 pCi/L.4 Select a town for its numbers.
15%
of 26,805 Vermont locations tested with Health Department kits had radon at or above 4.0 pCi/L.4
- Under 10%
- 10 to 19%
- 20 to 29%
- 30% or more
- Fewer than 20 results
About this map and its numbers
Statewide: 4,069 of 26,805 results, calculated by Vermont Radon from the Health Department’s town data, retrieved October 17, 2026. Map: share of tested locations at or above 4.0 pCi/L, by town, in Vermont Radon’s grouping of Health Department data.4 Boundaries: VCGI.5 Important: A town’s numbers can’t predict any one home’s level: neighboring homes can have very different radon levels.1 The only way to know is to test your home. Explore every town’s numbers.
Start here: the recommended test
Order the Health Department Lab’s $25 long-term kit6 and leave it out 3 to 12 months, ideally through a heating season.1
A digital monitor is optional: it adds day-to-day readings.7
Order the $25 kit Shop at Airthings Affiliate link
We may earn a commission, at no cost to you. Code vtradon-10OFF takes 10% off. How we make money
Phone orders and monitor tips
Order the Lab kit by phone: 802-338-4736 or 800-660-9997. It isn’t an affiliate link.1
Use a monitor alongside the kit, not instead of it: the Conference of Radiation Control Program Directors (CRCPD) says to check its results with an approved test.8
Common questions
Is radon a problem in Vermont?
Yes. One in seven Vermont homes has elevated levels of radon, according to the Vermont Department of Health.1 High radon levels have been found in all types of homes in every area of Vermont.9
What radon level is too high?
At or above 4.0 pCi/L, the Health Department and EPA recommend reducing radon in your home, and they encourage action to get below 2.0 pCi/L.1
How much does it cost to fix radon in Vermont?
The Health Department estimates $1,500 to $2,500 to install active soil depressurization, the common vent-pipe-and-fan system for radon in air.3
Guides
Every fact links to the Health Department, the EPA or another official source.
Test
Results
Fix and costs
Digital monitors
Homes, schools and rentals
Towns and well water
Photo credits
Josh Lemmon / Unsplash Ascended Dreamer, CC BY-SA 4.0, cropped Craig Tidball / Unsplash Ahale, CC BY-SA 4.0, cropped Ascended Dreamer, CC BY-SA 4.0, cropped Jitze Couperus, CC BY 2.0, cropped
Last reviewed How we source facts
Sources
9 official sources
- Vermont Department of Health. Radon in Your Home. Checked 2026-11-04. ↩
- U.S. Environmental Protection Agency. What is National Radon Action Month? When is Radon Action Week?. Checked 2026-11-04. ↩
- Vermont Department of Health. Fixing Radon in Your Home (fact sheet, January 2024). Checked 2026-11-04. ↩
- Vermont Department of Health. Radon Risk in Vermont: test results by town (map data, JSON). Checked 2026-10-17. ↩
- Vermont Center for Geographic Information (VCGI). VT Data - Town Boundaries (BNDHASH; for general mapping purposes only). Checked 2026-10-17. ↩
- Vermont Department of Health Laboratory. Radon Test Kits (Health Department Lab webstore). Checked 2026-11-04. ↩
- U.S. Environmental Protection Agency. Home Buyer’s and Seller’s Guide to Radon (EPA 402/K-24/001, March 2024). Checked 2026-10-17. ↩
- Conference of Radiation Control Program Directors (CRCPD). Consumer Digital Radon Monitors (CRCPD guidance, reprinted in The Radon Reporter, Q4 2025, p. 39). Checked 2026-10-17. ↩
- Vermont Department of Health. Testing for Radon in Your Home (fact sheet, July 2025). Checked 2026-11-04. ↩
