Founding year: the first Warrenville post office (Blevins & Helbock, CC0).The full story ↓
History grade
What drives Warrenville’s History grade
On its age, its old homes and the National Register, Warrenville is more historic than 78% of U.S. towns. Its share of homes from before 1940 holds the grade up; its age pulls it down.
A−
HistoryA character grade: shown, never part of Warrenville’s overall grade.
South Carolina towns list more on the Register than most of the country (a typical South Carolina town has 3.2 per 10,000 residents, the U.S. 2.4), so Warrenville’s 57.6 sits above most of its state (81% of South Carolina towns have fewer) while its 6 historic buildings outnumber those of 72% of U.S. towns.
How sure. Graded on any two of the three inputs instead, the letter would range from B to A. The pre-1940 share is a Census survey estimate (±16.1 points). The founding year is the first post office, not a stated founding date.
Founding year: the first post office (other dates in Quick answers). Homes: Census ACS 2020–24. National Register: National Park Service, May 2026 list; each listing counted once (boundary changes and added documentation belong to their listing), and a historic district counts its contributing buildings. How TownRatings grades history →
What stands out about Warrenville’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
In 2008, there were talks about incorporating the villages of Warrenville, Graniteville, and Vaucluse; as a result, the towns approved a referendum to vote on whether or not to incorporate. If approved, the municipality would have had an area of around 20 square miles (52 km2). The referendum was defeated by a two-to-one margin in August 2008.
The Warrenville Elementary School was listed on the National Register of Historic Places in 2002.
The Warrenville post office opened in 1898, the earliest record of the town by name (U.S. post office records).
How does Warrenville rank for history?
Warrenville is more historic than 78% of U.S. towns. The History grade combines the town’s founding era, the share of homes built before 1940 and its National Register listings. It’s a character grade, so it isn’t part of the overall grade. How it works.
What is on the National Register in Warrenville?
Two places: the Warrenville Elementary School (listed 2002) and the Warren Mill (2016).
How old are the homes in Warrenville?
33% of Warrenville’s homes were built before 1940 (Census estimate, ±16.1 points), against a typical 3.5% for a South Carolina town; the median home was built in 1949.
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).
From the National Register of Historic Places (2), 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.
