Postal reference / United States
06357Niantic, Connecticut
ZIP code 06357 is a United States postal code for Niantic, Connecticut. Its county association is Southeastern Connecticut County. The map reference point is at 41.3253, -72.2108.
- State / territory
- Connecticut
- Recorded place name
- Niantic
- County association
- Southeastern Connecticut
- Estimated coordinate
- 41.3253, -72.2108
View on OpenStreetMap - ZIP prefix
- 063 · 40 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
- 10.588 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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Browse the other 428 ZIP codes recorded for Connecticut, sorted by code with place and county.
Connecticut directoryNearby ZIP code reference points
| ZIP code | Place | State | County association | Miles |
|---|---|---|---|---|
| 06333 | East Lyme | CT | New London | 3.1 |
| 06376 | South Lyme | CT | Lower Connecticut River Valley | 3.4 |
| 06385 | Waterford | CT | Southeastern Connecticut | 3.7 |
| 06371 | Old Lyme | CT | Lower Connecticut River Valley | 5.1 |
| 06320 | New London | CT | Southeastern Connecticut | 5.7 |
| 06375 | Quaker Hill | CT | Southeastern Connecticut | 7.2 |
| 06349 | Groton | CT | Southeastern Connecticut | 8.1 |
| 06340 | Groton | CT | Southeastern Connecticut | 8.2 |
Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.
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