Iowa has 13 Superfund sites: 1% of the US total of 1,316. That ranks #31 by count and #23 per person (0.4 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/iowa" width="100%" height="440" style="border:2px solid #111" loading="lazy" title="Iowa superfund sites map — InstaMaps"></iframe>Des Moines TCE · Midwest Manufacturing/North Farm · Vogel Paint & Wax Co. · Lawrence Todtz Farm · Shaw Avenue Dump · Fairfield Coal Gasification Plant · Peoples Natural Gas Co. · Iowa Army Ammunition Plant · Mason City Coal Gasification Plant · Railroad Avenue Groundwater Contamination · PCE Former Dry Cleaner · Highway 3 PCE
"Iowa has 13 Superfund sites, #31 in the US by count and #23 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.