Wikipedia doesn’t have a history of Olympia yet. The photos, dates and memories neighbors add here are how it gets written.
Olympia is an urban unincorporated area and census-designated place (CDP) in Richland County, South Carolina, United States. It was first listed as a CDP prior to the 2020 census with a population of 1,087. The CDP is in western Richland County, bordered to the north by the city of Columbia, the state capital, and to the west, across the Congaree River, by the city of Cayce. The eastern half of the CDP is residential, while the western half is occupied by the Columbia Quarry of Vulcan Materials. Four locations in the CDP are listed on the National Register of Historic Places. The Olympia Armory is on Granby Lane in the northeast part of the CDP, the Olympia Mill School is on Olympia Avenue …
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Olympia, 1901 to 1946
Woven from the archive, old maps, post office records, the National Register and the people born here.
4 listings: 3 buildings, among them the Olympia Armory (listed 1995, the first), and 1 historic district, the Olympia Mill Village Historic District, with 257 contributing buildings. 260 historic buildings in all.
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 the National Register of Historic Places (4), U.S. Geological Survey historical maps 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.