US location post office
ZIP Code 11901
- Zip Code: 11901
- Type: Standard
- Official USPS city name: Riverhead
- Official USPS State Code: NY
- Official State Name: New York
- ZCTA: TRUE
- Population: 28387.0
- Density: 198.7
- Primary Official County Code: 36103
- Primary Official County Name: Suffolk
- Official County Name: Suffolk
- Official County Code: 36103
- Imprecise: FALSE
- Military: FALSE
- Timezone: America/New_York (18:20 PM Monday, May 05 2025-05-05 (GMT -0400))
- Geo Point: 40.92254, -72.64657
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