Texas ZIP codes
Texas holds 2,600 ZIP codes between 73301 and 88595. The tables rank the places and counties with the most codes; the guide below decodes the numbering.
Places with the most ZIP codes in Texas
| Place | ZIP codes |
|---|---|
| Houston | 178 |
| El Paso | 137 |
| Dallas | 105 |
| San Antonio | 83 |
| Austin | 74 |
| Fort Worth | 56 |
| Corpus Christi | 30 |
| Amarillo | 27 |
| Lubbock | 26 |
| Arlington | 19 |
| Waco | 16 |
| Tyler | 15 |
| Beaumont | 13 |
| Irving | 12 |
| Spring | 12 |
| Midland | 11 |
| Denton | 10 |
| Abilene | 10 |
| Plano | 9 |
| Garland | 9 |
Texas counties by ZIP count
| County | ZIP codes |
|---|---|
| Harris | 232 |
| Dallas | 165 |
| El Paso | 145 |
| Tarrant | 97 |
| Bexar | 96 |
| Travis | 80 |
| Nueces | 37 |
| Collin | 32 |
| Lubbock | 32 |
| McLennan | 32 |
Reading a Texas ZIP code
Texas holds 2,600 ZIP codes between 73301 and 88595, spread over 254 counties. Houston leads the state with 178 codes, ahead of El Paso with 137. Every code here opens with digits 7 to 8: that opening number is the national postal region Texas belongs to, the next two digits name the sectional center that sorts the mail, and the final two point to the local office. A ZIP+4 suffix narrows delivery to a block face. Boundaries follow carrier routes rather than city limits, which is why Houston spreads across 178 codes while some rural codes cross county lines.
Source: GeoNames postal dataset (CC BY 4.0), snapshot of 2026-07-09. Counts cover standard delivery ZIPs listed for Texas; unique and PO box codes may add to these totals.
Last updated: · Methodology and sources