Corporate Apartments. San Marcos, with its mild year round temperatures, extensive park system, and location in the majestic foothills of northern San Diego County, almost sounds too good to be true. Located in an award-winning school district, with Palomar Community College and California State University, San Marcos nearby. San Marcos is a short 35 mile drive to San Diego and the California coast. It has golf courses, excellent restaurants and a variety of services for all agesConveniently located near Highway 78, which allows easy access to beaches, North County's business parks and recreation. Shopping, restaurants and schools are all just mintues away.