Kirby, TX ZIP Codes & Directory
Kirby is an incorporated city in Armstrong County, Texas. Browse all active 5-digit USPS postal codes serving Kirby and surrounding Armstrong County delivery districts.
All ZIP Codes in Kirby, TX
1 CodesAbout Kirby Mail Delivery & Postal Administration
ZIP codes in Kirby are administered by the United States Postal Service. Delivery routes are coordinated through regional Sectional Center Facilities (SCFs) servicing Armstrong County and surrounding Texas metropolitan districts.
Frequently Asked Questions About Kirby, TX ZIP Codes
How many ZIP codes serve Kirby, Texas? ▾
Kirby, Texas is served by 1 active USPS postal delivery codes: 78011.
What county is Kirby located in? ▾
Kirby is an incorporated city located within Armstrong County, Texas.
What is the population and demographic size of Kirby? ▾
According to U.S. Census Bureau data, Kirby has an estimated population of 12,290 residents and is situated within the Armstrong Area.
How does mail sorting and delivery work in Kirby? ▾
Mail delivery in Kirby is operated by the United States Postal Service through regional Sectional Center Facility (SCF) distribution plants servicing Armstrong County and surrounding Texas counties.