U.S. postal lookup

U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

42,735 verified records
All states and U.S. territories
Maps and coordinates
County directory

Bastrop County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Bastrop County.

County State ZIP Code City Area Codes
Bastrop County TX 78602 Bastrop 512, 737
Bastrop County TX 78612 Cedar Creek 512, 737
Bastrop County TX 78621 Elgin 512, 737
Bastrop County TX 78650 Mc Dade 512, 737
Bastrop County TX 78659 Paige 512, 737, 979
Bastrop County TX 78662 Red Rock 512, 737
Bastrop County TX 78953 Rosanky 361, 512, 737, 830
Bastrop County TX 78957 Smithville 361, 512, 737, 979

Geographic Map of Bastrop County

Postal context

About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.