Most of Grand Ridge was built recently: 0.0% of its homes predate 1940 and the median home dates from 1990. Below: maps from 1952 on and the census since 1960.
In 1860, Judge John Thomas Porter and his wife Phoebe J. Porter (née Finley) moved from New Salem, Fayette County, Pennsylvania to Illinois with their son Ebenezer F. Porter (born 1859), close to Grand Ridge, Illinois in LaSalle County, Illinois, where they lived on a farm until 1872. Porter was at first a farmer, and afterward a lumberman and grain dealer. In 1872, he moved into Grand Ridge, Illinois proper, and built and operated two grain elevators. In 1881, he moved to Florida and engaged in the lumber business. He founded the Town of Grand Ridge, Florida, naming it in honor of his old Illinois home.
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 (4), Wikipedia, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), the US Post Offices dataset (Blevins & Helbock) and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.