Category
environment
Native level
Census tract
Unit
zone
Vintage
1993 / CT 1997
States ranked by radon risk zone
50 states with data (1993 / CT 1997). Top 10 highest and bottom 10 lowest.
| Rank | State | Value |
|---|---|---|
| 1 | Iowa | 3.0 |
| 2 | North Dakota | 3.0 |
| 3 | Colorado | 3.0 |
| 4 | Wyoming | 3.0 |
| 5 | Maine | 2.9 |
| 6 | Montana | 2.8 |
| 7 | Minnesota | 2.8 |
| 8 | Nebraska | 2.8 |
| 9 | South Dakota | 2.7 |
| 10 | Indiana | 2.7 |
| Rank | State | Value |
|---|---|---|
| 50 | Louisiana | 1.0 |
| 49 | Hawaii | 1.0 |
| 48 | Texas | 1.0 |
| 47 | Oklahoma | 1.1 |
| 46 | Mississippi | 1.1 |
| 45 | Arkansas | 1.2 |
| 44 | Florida | 1.3 |
| 43 | Nevada | 1.3 |
| 42 | Alaska | 1.4 |
| 41 | Washington | 1.4 |
About this map
hearthmap renders radon risk zone as a choropleth map of the United States. Zoom in to see census tract values shaded against the rest of the country, and click any region to see its exact value with margin of error.
You can layer filters and a custom match score on top of radon risk zoneto find places that match what matters to you. Combine it with school ratings, housing prices, commute times, and more.
Source: EPA Map of Radon Zones + CT DEEP 1997 · 1993 / CT 1997