New Hampshire has 21 Superfund sites: 1.6% of the US total of 1,316. That ranks #20 by count and #4 per person (1.49 per 100,000 residents) of 51.
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.
Licence: U.S. government data: no copyright, free to reuse
Local blogs, news sites, parks pages: embed the live interactive map with one snippet. Attribution stays on, that's the whole deal.
<iframe src="https://get-instamaps.com/embed/rankings/superfund-sites/new-hampshire" width="100%" height="440" style="border:2px solid #111" loading="lazy" title="New Hampshire superfund sites map — InstaMaps"></iframe>Auburn Road Landfill · Dover Municipal Landfill · Keefe Environmental Services · Ottati & Goss/Kingston Steel Drum · Somersworth Sanitary Landfill · Sylvester · Tinkham Garage · Kearsarge Metallurgical Corp. · Savage Municipal Water Supply · South Municipal Water Supply Well · Coakley Landfill · Tibbetts Road
"New Hampshire has 21 Superfund sites, #20 in the US by count and #4 per person (EPA National Priorities List, September 2026, mapped by InstaMaps)." Free to quote with a link to this page. Population: US Census 2024 estimates.