United States · permanent state record · TX
Texas
Texas at a glance
- Capital
- Austin · M8 on the national map
- U.S. Census Bureau, Guide to 2010 State and Local Census Geography: Texas · Capital field in the Census state geography guide; source page checked 2026-09-13. This is a federal secondary reference, not the designating constitution or statute.
- Admitted to the Union
- 1845-12-29
- U.S. Senate, Texas: States in the Senate timeline · Federal institutional history; this is a secondary reference to the act, ratification, or proclamation establishing statehood, not the enrolled act itself.
- Total area
- 268596.5 square miles
- U.S. Census Bureau, State Area Measurements and Internal Point Coordinates · Total area: land and water.
- Population
- 31,709,821 people
- U.S. Census Bureau, Vintage 2025 Population Estimates · Vintage 2025 resident population estimate.
- ZIP Code range
- 733, 750–799, 885
- U.S. Postal Service, ZIP Code system · Summary of ZIP Code prefixes principally assigned to the state; ZIP Codes are routing constructs, not geographic boundaries.
- Area codes
- 210, 214, 254, 281, 325, 346, 361, 409, 430, 432, 469, 512, 621, 682, 713, 726, 737, 806, 817, 830, 832, 903, 915, 936, 940, 945, 956, 972, 979
- North American Numbering Plan Administrator, NPA reports · In-service geographic area codes assigned to the state.
Selected dated milestones · not a complete state history
Texas through time
Admitted to the Union
Texas was admitted to the Union on 1845-12-29.
U.S. Senate, Texas: States in the Senate timeline · as of 2026-09-04