US location post office
ZIP Code 57783
- Zip Code: 57783
- Type: Standard
- Official USPS city name: Spearfish
- Official USPS State Code: SD
- Official State Name: South Dakota
- ZCTA: TRUE
- Population: 15598.0
- Density: 25.6
- Primary Official County Code: 46081
- Primary Official County Name: Lawrence
- Official County Name: Lawrence| Butte
- Official County Code: 46081| 46019
- Imprecise: FALSE
- Military: FALSE
- Timezone: America/Denver (14:44 PM Monday, May 13 2024-05-13 (GMT -0600))
- Geo Point: 44.45605, -103.92832
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