Updated November 2026 · Data: New York State Department of Health radon test results by town (updated November 2025) · Sources and method
The New York State Department of Health (NYSDOH) has radon results for 644 homes in Nyc (Kings) (New York County) tested with state test kits. In basements, 10.2% of 528 tests were at or above the EPA action level of 4 pCi/L, with an average of 2.07 pCi/L. That share is higher than the New York County figure of 7.2% (New York, 58 counties: 36.1%).
These are area results, not your home’s level. Homes next to each other can have very different radon levels. The only way to know yours is to test.
Radon test results in Nyc (Kings) by floor
| Floor tested | Homes tested | Average (pCi/L) | At or above 4 pCi/L | At or above 20 pCi/L | Highest (pCi/L) |
|---|---|---|---|---|---|
| Basement | 528 | 2.07 | 10.2% | 0.8% | 41.2 |
| 1st Floor | 116 | 0.88 | 2.6% | 0.0% | 7.8 |
How Nyc (Kings) compares
| Area | Basement tests | At or above 4 pCi/L |
|---|---|---|
| Nyc (Kings) | 528 | 10.2% |
| New York County | 1,611 | 7.2% |
| New York (58 counties) | 84,677 | 36.1% |
How to test your home in Nyc (Kings)
- NYSDOH sells short-term charcoal test kits to residents; use the kit order form (DOH-2247) or call 518-402-7556.
- Place the kit in the lowest lived-in level with windows and doors closed.
- If the result is 4 pCi/L or higher, the EPA recommends fixing the home; between 2 and 4 pCi/L, consider a fix.
- Hire an NRPP- or NRSB-certified mitigator. See typical prices in our radon mitigation cost guide.
More results nearby: Radon in New York County · Radon in New York.
Frequently asked questions
Is radon a problem in Nyc (Kings), NY?
10.2% of basement radon tests in Nyc (Kings) were at or above 4 pCi/L in NYSDOH data. Any home can have high radon, so testing is the only way to know.
What is the average radon level in Nyc (Kings)?
The average basement result is 2.07 pCi/L and the average first-floor result is 0.88 pCi/L, based on NYSDOH test kits.
Sources and method
Data come from short-term charcoal kits that NYSDOH provides to residents; tests by private companies are not included. “Town” is the town, village or city recorded in the state database. Percent at or above 4 pCi/L = tests from 4 to 20 pCi/L plus tests at or above 20 pCi/L, divided by homes tested. Retrieved November 2026.