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McCook County, South Dakota Zip Codes
Zip Code
City
Population
57058
Salem
1,964
57048
Montrose
1,299
57012
Canistota
1,122
57319
Bridgewater
936
57047
Monroe
293
57374
Spencer
290
Population is the most recent figure from the U.S. Census Bureau's 2022
American Community Survey (ACS) 5-Year Estimates
.