New York has 62 counties, with 34 classified as EPA Zone 1 (highest risk). With an average radon level of 7.5 pCi/L, New York state testing data reveals significantly elevated risks across multiple counties. Testing is highly recommended.
New York is the 27th most expansive state in terms of size, and the third most populous. It also happens to be the seventh most densely populated state in the country.
New York does have an active radon program, dedicated to educating citizens about the risks associated with the deadly gas. You can find more information on Radon, testing and mitigation at the official page.
Explore radon data organized by metro region, including average levels, hotspot cities, and local mitigation professionals.
Cities with the most user-submitted radon test data, ranked by number of submissions.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Brooklyn | 10.80 pCi/L | 5 |
| Oneonta | 6.50 pCi/L | 4 |
| Clifton Park | 3.75 pCi/L | 4 |
| Elmira | 15.00 pCi/L | 3 |
| Saugerties | 10.67 pCi/L | 3 |
| Staten Island | 4.00 pCi/L | 3 |
| New York | 9.00 pCi/L | 2 |
| Yonkers | 8.00 pCi/L | 2 |
| Horseheads | 7.50 pCi/L | 2 |
| Poughkeepsie | 16.00 pCi/L | 1 |
| Buffalo | 4.00 pCi/L | 1 |
| Pelham | 3.00 pCi/L | 1 |
All 62 New York counties with their EPA radon zone classification and user-submitted average radon levels.
Browse radon data for individual cities across New York. Each city page includes user-submitted radon levels, local contractors, and mitigation resources.