Mailbox Map › United States › Port Jefferson › Port Jefferson Post Office
Post office · USPS
Port Jefferson Post Office, Port Jefferson
Port Jefferson Post Office at 407 East Main Street, Port Jefferson, NY 11777.
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| Address | 407 East Main Street, Port Jefferson, NY 11777 |
|---|---|
| Area | Port Jefferson, New York |
| Coordinates | 40.94513, -73.06745 |
| Time zone | America/New_York |
Mapped by the OpenStreetMap community, last checked 2026-06-01. Spotted a box that's gone? Fix it on OpenStreetMap and this page follows within a month.