Port Isabel, TX zip code
Port Isabel, Texas uses one zip code: 78578. Most of it is in Cameron County. Together these zip codes are home to about 10K people.
Zip codes
1
Population
10K
All zips combined
Largest zip
78578
10,016 residents
Zip codes in Port Isabel
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 78578 | 10,016 | $51,880 |