Postal reference / United States
11777Port Jefferson, New York
ZIP code 11777 is a United States postal code for Port Jefferson, New York. Its county association is Suffolk County. The map reference point is at 40.9457, -73.0611.
- State / territory
- New York
- Recorded place name
- Port Jefferson
- County association
- Suffolk
- Estimated coordinate
- 40.9457, -73.0611
View on OpenStreetMap - ZIP prefix
- 117 · 82 ZIP codes share it
- Data source
- GeoNames postal reference, snapshot September 26, 2026
GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.
Area
- Land area
- 4.392 sq mi (2023 Census Gazetteer)
Figures are for the ZIP Code Tabulation Area (ZCTA) that most closely matches this ZIP code, not an exact match to USPS delivery boundaries. Source: U.S. Census Bureau, 2023 Gazetteer + 2023 ACS 5-Year Estimates, retrieved 2026-09-27. How to read this data.
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New York directoryNearby ZIP code reference points
| ZIP code | Place | State | County association | Miles |
|---|---|---|---|---|
| 11776 | Port Jefferson Station | NY | Suffolk | 2.3 |
| 11733 | East Setauket | NY | Suffolk | 2.6 |
| 11766 | Mount Sinai | NY | Suffolk | 2.8 |
| 11764 | Miller Place | NY | Suffolk | 3.6 |
| 11794 | Stony Brook | NY | Suffolk | 4.4 |
| 11790 | Stony Brook | NY | Suffolk | 4.4 |
| 11789 | Sound Beach | NY | Suffolk | 4.6 |
| 11727 | Coram | NY | Suffolk | 5.1 |
Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.
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