City
| City / Place Name | ZIP | County | State | Longitude | Latitude |
|---|---|---|---|---|---|
| Lasara | 78561 | Willacy County | Texas | -97.9111 | 26.4648 |
| Lyford | 78569 | Willacy County | Texas | -97.7817 | 26.4089 |
| Mission | 78574 | Willacy County | Texas | -98.3701 | 26.3189 |
| Raymondville | 78580 | Willacy County | Texas | -97.7967 | 26.4792 |
| San Perlita | 78590 | Willacy County | Texas | -97.6397 | 26.5012 |
| Sebastian | 78594 | Willacy County | Texas | -97.8123 | 26.344 |
| Port Mansfield | 78598 | Willacy County | Texas | -97.425 | 26.5548 |