The Modoc post office opened in 1882, the earliest record of the town by name. Another post office, Boutwell (1875), opened inside today’s town and later closed.
2020 census: 312144 years
Founding year: the first Modoc post office (Blevins & Helbock, CC0).
What stands out about Modoc’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Wikipedia doesn’t have a history of Modoc yet. The photos, dates and memories neighbors add here are how it gets written.
Modoc is a census-designated place (CDP) in McCormick County, South Carolina, United States. The population was 256 at the 2000 census, and 218 at the 2010 census, a decline of 14.8%. Local tradition holds that railroad engineers named Modoc for the Modoc indigenous tribe of Northern California, which was causing trouble for the railroad line, as the line was also having property rights disputes with local landowners.
Its first post office opened in 1882. Between the 2010 and 2020 censuses its population grew from 218 to 312 (+43%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Modoc, 1875 to 1882
Woven from the archive, old maps, post office records, the National Register and the people born here.
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 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.