| Category | Subcategory | Lat | Lon | Range |
|---|---|---|---|---|
| Calhoun County | Calhoun County | 28.54118 | -96.60503 | 19.5 |
| Calhoun County | Point Comfort | 28.67972 | -96.56025 | 5 |
| Calhoun County | Port Lavaca | 28.615 | -96.62609 | 5 |
| Calhoun County | Seadrift | 28.41528 | -96.71359 | 5 |
| Amateur Radio | Amateur Radio | 28.46695 | -96.61692 | 25 |
| Educational | Calhoun County I.S.D. | 28.46695 | -96.61692 | 25 |
| Calhoun County | Memorial Medical Center | 28.46695 | -96.61692 | 25 |
| Calhoun County | Port Lavaca Amateur Radio Club | 28.46695 | -96.61692 | 25 |
