US location post office
ZIP Code 57437
- Zip Code: 57437
- Type: Standard
- Official USPS city name: Eureka
- Official USPS State Code: SD
- Official State Name: South Dakota
- ZCTA: TRUE
- Population: 1453.0
- Density: 1.0
- Primary Official County Code: 46089
- Primary Official County Name: McPherson
- Official County Name: McPherson| Campbell
- Official County Code: 46089| 46021
- Imprecise: FALSE
- Military: FALSE
- Timezone: America/Chicago (11:13 AM Monday, May 20 2024-05-20 (GMT -0500))
- Geo Point: 45.79144, -99.59805
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