Brownsville, TX

ZIP code 78521 is located in Brownsville, Texas, along the southern border of the state. This area is home to the historic Gladys Porter Zoo, known for its diverse animal exhibits. It also houses the Palo Alto Battlefield National Historical Park, which commemorates the first major battle of the US-Mexico War. With a mix of cultural attractions and natural beauty, 78521 offers a unique experience for visitors and residents alike.