Port Arthur, TX ZIP Codes & Directory
Port Arthur is an incorporated city in Grayson County, Texas. Browse all active 5-digit USPS postal codes serving Port Arthur and surrounding Grayson County delivery districts.
All ZIP Codes in Port Arthur, TX
1 CodesAbout Port Arthur Mail Delivery & Postal Administration
ZIP codes in Port Arthur are administered by the United States Postal Service. Delivery routes are coordinated through regional Sectional Center Facilities (SCFs) servicing Grayson County and surrounding Texas metropolitan districts.
Frequently Asked Questions About Port Arthur, TX ZIP Codes
How many ZIP codes serve Port Arthur, Texas? ▾
Port Arthur, Texas is served by 1 active USPS postal delivery codes: 78181.
What county is Port Arthur located in? ▾
Port Arthur is an incorporated city located within Grayson County, Texas.
What is the population and demographic size of Port Arthur? ▾
According to U.S. Census Bureau data, Port Arthur has an estimated population of 5,961 residents and is situated within the Grayson Area.
How does mail sorting and delivery work in Port Arthur? ▾
Mail delivery in Port Arthur is operated by the United States Postal Service through regional Sectional Center Facility (SCF) distribution plants servicing Grayson County and surrounding Texas counties.