Brown County, South Dakota Zip Codes

Zip Code	City	Population
57401	Aberdeen	32,217
57445	Groton	1,910
57446	Hecla	628
57441	Frederick	607
57479	Warner	599
57427	Bath	438
57481	Westport	375
57433	Columbia	355
57449	Houghton	333
57460	Mansfield	321
57432	Claremont	239
57474	Stratford	234
57426	Barnard	48
57439	Ferney	22

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