Lake San Marcos Resort & Country Club 1025 La Bonita Drive Lake San Marcos, CA 92078 Phone : (760) 744-0120 Nearest cities for Lake San Marcos, CA Carlsbad, CA(6.0)   Encinitas, CA(6.9)   Escondido, CA(8.8)   Rancho Santa Fe, CA(6.9)   San Diego, CA(24.1)   San Marcos, CA(3.0)   San Marcos, CA(3.0)   Vista, CA(5.4)