Service Area
- Collin County (Excluding cities of Plano, Richardson, and Wylie)
- Dallas County (Only cities of Balch Springs, Cockrell Hill, Sachse, Seagoville, and Wilmer)
- Erath County
- Ellis County (Excluding cities of Ennis, Glenn Heights, and Mansfield)
- Hood County
- Hunt County
- Johnson County (Excluding cities of Burleson and Mansfield)
- Kaufman County
- Navarro County
- Palo Pinto County
- Parker County (Excluding city of Azle)
- Rockwall County
- Somervell County
- Wise County