Maryland has 42 mapped waterfalls — 0.67 per 100,000 residents, ranking it #39 of 51 in the US.
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/waterfalls/maryland" width="100%" height="440" style="border:2px solid #111" loading="lazy" title="Maryland waterfalls map — InstaMaps"></iframe>McKeldin Falls · Cascade Falls · Old Dam Waterfall · Cunningham Falls · Round Falls · Muddy Creek Falls · Upper Swallow Falls · Kilgore Falls · Tolliver Falls · Lower Swallow Falls · failed mill dam
"Maryland has 42 mapped waterfalls — #39 in the US per capita (InstaMaps analysis of OpenStreetMap data, 2026)." Free to quote with a link to this page. Data: OpenStreetMap; population: US Census 2024 estimates.