- Radar Base
- Ralls
- Ramireno
- Ramirez-Perez
- Ranchette Estates
- Ranchitos Las Lomas
- Rancho Alegre
- Rancho Banquete
- Rancho Chico
- Rancho Viejo
- Ranchos Penitas West
- Ranchos Penitas West Colonia
- Ranger
- Rangerville
- Rankin
- Rankin
- Ransom Canyon
- Ratamosa
- Ravenna
- Raymondville
- Realitos
- Red Lick
- Red Oak
- Redfield
- Redland
- Redwater
- Redwood
- Refugio
- Reid Hope King
- Reid Hope King Colonia
- Reklaw
- Relampago
- Rendon
- Retreat
- Rhome
- Ricardo
- Rice
- Richland Hills
- Richland Springs
- Richwood
- Riesel
- Rio Bravo
- Rio Grande City
- Rio Hondo
- Rio Vista
- Rising Star
- River Oaks
- Riviera
- Roanoke
- Roaring Springs
- Robert Lee
- Robinson
- Robstown
- Roby
- Rockdale
- Rocksprings
- Rockwall
- Rocky Mound
- Rolling Meadows
- Rollingwood
- Roma
- Roma Creek
- Roma-Los Saenz
- Roman Forest
- Ropesville
- Roscoe
- Rose City
- Rose Hill Acres
- Rosebud
- Rosharon
- Rosita North
- Rosita South
- Ross
- Rosser
- Rotan
- Round Mountain
- Round Top
- Rowlett
- Roxton
- Royse City
- Rule
- Runaway Bay
- Runge
- Rusk
