Every edition of the U.S. Geological Survey’s map of Sandy Lake. Tap a year, or press play to watch the town change.
1911Stoneboro sheet · 1:62,500
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Sandy Lake.
The story so far
Sandy Lake, in brief
Wikipedia doesn’t have a history of Sandy Lake yet. The photos, dates and memories neighbors add here are how it gets written.
Sandy Lake is a borough in eastern Mercer County, Pennsylvania, United States. It was established in 1849. The population was 649 at the 2020 census. It is part of the Hermitage micropolitan area.
Its first post office opened in 1833. Its population held steady between the last two censuses: 659 in 2010, 649 in 2020.
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Sandy Lake, 1828 to 1911
Woven from the archive, old maps, post office records, the National Register and the people born here.
Fire insurance maps drew every building, what it was made of and what it was used for, so insurers could price the risk of fire. Pick a year, then a sheet.
Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021). How TownRatings grades history →
From Wikimedia Commons (6), Wikidata and Wikipedia for famous people, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), the US Post Offices dataset (Blevins & Helbock), the USGS Geographic Names Information System and Sanborn fire insurance maps (Library of Congress). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.