San Marcos Areas
- Richland
- San Elijo Hills
- Lake San Marcos
- Twin Oaks Valley
- Discovery Hills
- Santa Fe Hills
- Rancho Dorado
- Old Creek Ranch
- Coronado Hills
- Barham Discovery Community
- Questhaven
- Rancho Tesoro
- La Costa Meadows
- Village O
- Elfin Forest
- Harmony Grove
- San Marcos Highlands
- Rancho Coronado
- Paloma
- Mira Lago
- Grand Estates
- Arbor Ranch
- Richland Villas
- University Commons
- San Marcos West
- San Marcos North
- San Marcos Southwest
- Southern Preserve
- Vineyard
- Borden
- Village Square
- Crestview
- Sunset Park
- Knob Hill
- Las Posas
- Richmar
- Discovery Meadows
- Lakeview Estates
- Montiel
- Rancho Vallecitos
- Casitas del Amigos
- Foothills of San Marcos
- Palomar Estates
- Vallecitos
- Rancho Santa Fe Hills
- Mission Grove
- Sage Canyon