US location post office
ZIP Code 57440
- Zip Code: 57440
- Type: Standard
- Official USPS city name: Frankfort
- Official USPS State Code: SD
- Official State Name: South Dakota
- ZCTA: TRUE
- Population: 597.0
- Density: 1.6
- Primary Official County Code: 46115
- Primary Official County Name: Spink
- Official County Name: Spink
- Official County Code: 46115
- Imprecise: FALSE
- Military: FALSE
- Timezone: America/Chicago (14:09 PM Friday, May 10 2024-05-10 (GMT -0500))
- Geo Point: 44.84998, -98.26189
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