Union County, Arkansas Zip Codes

Zip Code	City	Population
71730	El Dorado	29,287
71762	Smackover	2,988
71749	Junction City	2,886
71765	Strong	2,344
71747	Huttig	821
71759	Norphlet	387
71724	Calion	308
71758	Mount Holly	194

Population is the most recent figure from the U.S. Census Bureau's 2022 American Community Survey (ACS) 5-Year Estimates.