US location post office
ZIP Code 52237
- Zip Code: 52237
- Type: Standard
- Official USPS city name: Hopkinton
- Official USPS State Code: IA
- Official State Name: Iowa
- ZCTA: TRUE
- Population: 1622.0
- Density: 7.7
- Primary Official County Code: 19055
- Primary Official County Name: Delaware
- Official County Name: Delaware| Dubuque
- Official County Code: 19055| 19061
- Imprecise: FALSE
- Military: FALSE
- Timezone: America/Chicago (00:33 AM Sunday, July 27 2025-07-27 (GMT -0500))
- Geo Point: 42.34467, -91.24829
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