ZIP Code 57730

Zip Code: 57730
Type: Standard
Official USPS city name: Custer
Official USPS State Code: SD
Official State Name: South Dakota
ZCTA: TRUE
Population: 5900.0
Density: 4.3
Primary Official County Code: 46033
Primary Official County Name: Custer
Official County Name: Custer| Pennington
Official County Code: 46033| 46103
Imprecise: FALSE
Military: FALSE
Timezone: America/Denver (10:36 AM Saturday, April 05 2025-04-05 (GMT -0600))
Geo Point: 43.71951, -103.6317