All 1,316 US superfund sites, from EPA National Priorities List (September 2026), ranked by superfund sites per 100,000 residents. Every state links to its own map and CSV: free to cite, embed and download.
| # | State | Per 100k | Total | Share | |
|---|---|---|---|---|---|
| 1 | Vermont | 1.7 | 11 | 0.8% | Map + story → |
| 2 | Delaware | 1.62 | 17 | 1.3% | Map + story → |
| 3 | Montana | 1.58 | 18 | 1.4% | Map + story → |
| 4 | New Hampshire | 1.49 | 21 | 1.6% | Map + story → |
| 5 | New Jersey | 1.21 | 115 | 8.7% | Map + story → |
| 6 | Rhode Island | 1.08 | 12 | 0.9% | Map + story → |
| 7 | Nebraska | 0.9 | 18 | 1.4% | Map + story → |
| 8 | Alaska | 0.81 | 6 | 0.5% | Map + story → |
| 9 | New Mexico | 0.75 | 16 | 1.2% | Map + story → |
| 10 | Maine | 0.71 | 10 | 0.8% | Map + story → |
| 11 | Pennsylvania | 0.7 | 91 | 6.9% | Map + story → |
| 12 | Michigan | 0.65 | 66 | 5% | Map + story → |
| 13 | Wisconsin | 0.6 | 36 | 2.7% | Map + story → |
| 14 | Washington | 0.59 | 47 | 3.6% | Map + story → |
| 15 | Indiana | 0.58 | 40 | 3% | Map + story → |
| 16 | West Virginia | 0.56 | 10 | 0.8% | Map + story → |
| 17 | Missouri | 0.53 | 33 | 2.5% | Map + story → |
| 18 | South Carolina | 0.51 | 28 | 2.1% | Map + story → |
| 19 | Kansas | 0.47 | 14 | 1.1% | Map + story → |
| 20 | Massachusetts | 0.45 | 32 | 2.4% | Map + story → |
| 21 | Minnesota | 0.43 | 25 | 1.9% | Map + story → |
| 22 | New York | 0.41 | 82 | 6.2% | Map + story → |
| 23 | Iowa | 0.4 | 13 | 1% | Map + story → |
| 24 | Illinois | 0.35 | 45 | 3.4% | Map + story → |
| 25 | Maryland | 0.35 | 22 | 1.7% | Map + story → |
| 26 | Oregon | 0.35 | 15 | 1.1% | Map + story → |
| 27 | Connecticut | 0.35 | 13 | 1% | Map + story → |
| 28 | North Carolina | 0.34 | 38 | 2.9% | Map + story → |
| 29 | Colorado | 0.34 | 20 | 1.5% | Map + story → |
| 30 | Utah | 0.34 | 12 | 0.9% | Map + story → |
| 31 | Virginia | 0.33 | 29 | 2.2% | Map + story → |
| 32 | Louisiana | 0.33 | 15 | 1.1% | Map + story → |
| 33 | Ohio | 0.31 | 37 | 2.8% | Map + story → |
| 34 | Mississippi | 0.31 | 9 | 0.7% | Map + story → |
| 35 | Idaho | 0.3 | 6 | 0.5% | Map + story → |
| 36 | Arkansas | 0.29 | 9 | 0.7% | Map + story → |
| 37 | Tennessee | 0.26 | 19 | 1.4% | Map + story → |
| 38 | California | 0.25 | 97 | 7.4% | Map + story → |
| 39 | Alabama | 0.23 | 12 | 0.9% | Map + story → |
| 40 | Oklahoma | 0.22 | 9 | 0.7% | Map + story → |
| 41 | South Dakota | 0.22 | 2 | 0.2% | Map + story → |
| 42 | Florida | 0.21 | 50 | 3.8% | Map + story → |
| 43 | Hawaii | 0.21 | 3 | 0.2% | Map + story → |
| 44 | Kentucky | 0.2 | 9 | 0.7% | Map + story → |
| 45 | Texas | 0.18 | 55 | 4.2% | Map + story → |
| 46 | Wyoming | 0.17 | 1 | 0.1% | Map + story → |
| 47 | Georgia | 0.14 | 16 | 1.2% | Map + story → |
| 48 | Washington DC | 0.14 | 1 | 0.1% | Map + story → |
| 49 | Arizona | 0.13 | 10 | 0.8% | Map + story → |
| 50 | Nevada | 0.03 | 1 | 0.1% | Map + story → |
| 51 | North Dakota | 0 | 0 | – | Map + story → |
Source: EPA National Priorities List, September 2026. Every National Priorities List site in the 50 states and DC, at the EPA’s coordinates. Sites in the territories are left out. Per-capita figures use US Census Bureau 2024 population estimates.
Licence: U.S. government data: no copyright, free to reuse Cite "EPA National Priorities List, mapped by InstaMaps" with a link to this page.
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