Texas (TX) ZIP Codes & Postal Directory
Search and explore 2,603 official USPS postal codes across Texas's 254 counties and metropolitan economic regions.
Texas Economic Leaderboard: Highest Median Income ZIP Codes
US Census Bureau ACS 5-Year High-Income Enclaves
Major Cities & Metropolitan Areas in Texas
10 MetrosAustin, TX
Austin is the state capital of Texas, home to the University of Texas at Austin, and a premier global hub for technology, live music, and government administration.
Houston, TX
Houston is the largest city in Texas and the fourth-most populous in the United States, anchored by energy, international trade, the Texas Medical Center, and NASA Johnson Space Center.
Dallas, TX
Dallas is a premier national center for commerce, finance, telecommunications, and logistics, featuring one of the largest contiguous urban arts districts in the nation.
Fort Worth, TX
Fort Worth blends rich Western heritage with world-class cultural institutions, the Historic Stockyards, aviation manufacturing, and Texas Christian University.
San Antonio, TX
San Antonio combines deep Spanish colonial history with vibrant modern commerce, famous for the historic Alamo, the scenic River Walk, and major military bases.
Plano, TX
Plano is a nationally recognized corporate headquarters hub in Collin County, home to Legacy West, top-ranked public schools, and vibrant international communities.
Arlington, TX
Arlington is the premier entertainment center of North Texas, hosting AT&T Stadium (Dallas Cowboys), Globe Life Field (Texas Rangers), and UT Arlington.
Irving, TX
Irving is a major economic engine bordering DFW International Airport, home to the master-planned Las Colinas community and numerous Fortune 500 corporate campuses.
El Paso, TX
El Paso sits on the US-Mexico border in far West Texas, representing a massive international trade and manufacturing hub alongside Fort Bliss and the Franklin Mountains.
Lubbock, TX
Known as the "Hub City" of the South Plains, Lubbock is the agricultural, medical, and educational center of West Texas, home to Texas Tech University.
Top 20 Most Populous Counties in Texas
Official FIPS County Identifiers & Population Census
| County Name | FIPS Code | County Seat | Largest City | Population |
|---|---|---|---|---|
| Harris County | 48201 | Houston | Houston | 4,780,913 |
| Dallas County | 48113 | Dallas | Dallas | 2,600,479 |
| Tarrant County | 48439 | Fort Worth | Fort Worth | 2,154,595 |
| Bexar County | 48029 | San Antonio | San Antonio | 2,059,531 |
| Travis County | 48453 | Austin | Austin | 1,326,437 |
| Collin County | 48085 | McKinney | Plano | 1,158,696 |
| Denton County | 48121 | Denton | Denton | 977,281 |
| Hidalgo County | 48215 | Edinburg | McAllen | 888,367 |
| El Paso County | 48141 | El Paso | El Paso | 869,880 |
| Fort Bend County | 48157 | Richmond | Sugar Land | 889,171 |
| Montgomery County | 48339 | Conroe | The Woodlands | 678,490 |
| Williamson County | 48491 | Georgetown | Round Rock | 671,418 |
| Cameron County | 48061 | Brownsville | Brownsville | 423,029 |
| Nueces County | 48355 | Corpus Christi | Corpus Christi | 353,178 |
| Brazoria County | 48039 | Angleton | Pearland | 388,181 |
| Bell County | 48027 | Belton | Killeen | 382,269 |
| Galveston County | 48167 | Galveston | League City | 355,062 |
| Lubbock County | 48303 | Lubbock | Lubbock | 317,541 |
| Webb County | 48479 | Laredo | Laredo | 269,148 |
| McLennan County | 48309 | Waco | Waco | 263,115 |
USPS Sectional Center Facility (SCF) Regional Sorting Zones in Texas
The first 3 digits of any Texas ZIP code correspond to a designated regional sorting plant:
Frequently Asked Questions About Texas (TX) Postal Codes
How many ZIP codes and counties are in Texas? ▾
Texas has 254 counties (more than any other U.S. state) and approximately 2,603 active USPS postal delivery codes.
How are municipalities classified in Texas? ▾
Under the Texas Local Government Code, incorporated municipalities in Texas are classified as Cities (Type A or Home Rule), Towns (General Law), or Villages (Type B or C General Law). There are 1,224 incorporated municipalities statewide: 971 cities, 230 towns, and 23 villages.
What is the median household income in Texas? ▾
According to official U.S. Census Bureau ACS data, the median household income in Texas is $74,640 per year.
How does the 3-digit USPS Sectional Center Facility (SCF) system work in Texas? ▾
In Texas, the first 3 digits of every postal code (from 750xx in North Texas to 799xx in El Paso) identify the regional Sectional Center Facility (SCF) sorting plant responsible for routing incoming and outgoing mail.