ZIP Code 71758
About Mount Holly
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.
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Area Profile
US Census (ACS 5-year · Gazetteer)
85
population
1
people / sq mi
$75,200
median home value
72.1
median age
232
housing units
66
households
68.0
land area (sq mi)