The Mount Holly post office opened in 1853, the earliest record of the town by name. Another post office, Beechland (1846), opened inside today’s town and later closed.
2020 census: 123173 years
Founding year: the first Mount Holly post office (Blevins & Helbock, CC0).
What stands out about Mount Holly’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 Mount Holly yet. The photos, dates and memories neighbors add here are how it gets written.
Mount Holly is an unincorporated community and census-designated place (CDP) in Union County, Arkansas, United States. Mount Holly is located at the junction of Arkansas highways 57 and 160, 18 miles (29 km) west-northwest of El Dorado. Mount Holly has a post office with ZIP code 71758. It was first listed as a CDP in the 2020 census with a population of 123.
Its first post office opened in 1853.
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Mount Holly, 1846 to 1962
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 U.S. Geological Survey historical maps, 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.