ZIP Code 77642: Port Arthur, TX
County: Jefferson
Coordinates: 29.92120, -93.92700
ZIP Type: Standard
Time Zone: Central Time (CT)
This profile provides an in-depth look at ZIP code 77642, serving Port Arthur in TX. It lies in Jefferson and supports delivery, planning, and address verification.
| Primary City | Port Arthur |
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| ZIP Code | 77642 |
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| County | Jefferson |
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| State | TX |
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| Latitude / Longitude | 29.92120, -93.92700 |
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| ZIP Type | Standard |
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| Time Zone | Central Time (CT) |
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| Data Updated | 2026-01-08 |
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Maps & Useful Links
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These links show the approximate center point for ZIP 77642 (not an exact boundary).
Geographic & Administrative Context
The geographic center of ZIP code 77642 is approximately 29.92120 (latitude) and -93.92700 (longitude). This location sits within Jefferson, contributing to regional planning across TX.
Local Coverage Notes
ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 77642 for mail delivery and general location reference in
Jefferson,
TX.
Some addresses near Port Arthur may share this ZIP due to delivery routing and local service areas.
Related ZIP Codes (Nearby)
Explore other postal codes near Port Arthur within TX.
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Frequently Asked Questions
What is the primary city for ZIP code 77642?
The primary city for this ZIP code is Port Arthur, located in TX.
In which county is 77642 located?
ZIP code 77642 is situated within Jefferson, TX.
What are the coordinates for 77642?
The approximate center point is 29.92120 (Latitude) and -93.92700 (Longitude).
Is ZIP code 77642 active?
This page lists ZIP 77642 as Listed based on the latest refresh date shown above.
Does ZIP 77642 cover multiple areas?
Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.
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Methodology & Data Notes
How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.
Page updated: 2026-01-08