Mount Holly is a community in Union County, Arkansas, home to about 18 people across 2.8 square miles. It has no ZIP code of its own: it’s part of 71758.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Population over time
It’s the 606th largest of 615 towns in Arkansas by population.
Union County grew from 22,495 residents in 1900 to 39,054 in 2020.
Union County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Weather by month
Average highs peak around 94°F in summer, and winter lows average 34°F. About 52.1 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, El Dorado S Ar Rgnl Ap, AR weather station (10 miles away).
Jobs in Union County
15,851 jobs at 1,036 businesses in Union County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Health care
1 doctors and other health care providers list an office in Mount Holly.
Nearest hospitals
South Arkansas Regional Hospital LLCGeneral hospital · emergency room · CMS rating 3 of 5 · El Dorado16.9 miles
Ouachita County Medical CenterGeneral hospital · emergency room · CMS rating 2 of 5 · Camden19.6 miles
Springhill Medical CenterGeneral hospital · emergency room · CMS rating 4 of 5 · Springhill35.4 miles
Providers with an office here
Mental health providers
1
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.