Lake San Marcos Community Association

Lake San Marcos is an unincorporated area of San Diego County, approximately 5 miles north of La Costa Spa and 7 miles east of the Pacific Ocean.  

In 1963, the Frazars purchased the property, raised the height of the dam, reshaped the shore line, and increased the lake’s size to its present 80 acres.  They subdivided the surrounding property and over the years condominiums and single family homes were built.

The uninterrupted Pacific breezes provide nature's air conditioning, with temperatures seldom above 80 degrees.  The Cerro de Las Posas mountain on Lake property and the San Marcos mountains to the north, with an eastern exit, create a wind tunnel preventing smog from settling in our valley.

June 19th Town Hall

Join us for an informative Seminar on Pest Management – Thinking Outside the Box 

with Herb Field who has been working as an urban entomologist for over 45 years.  The event is on Monday, June 19th at the Lake San Marcos Conference Center, Lite Refreshments 5:30 pm Guest Speaker 6:00pm. See FLYER HERE!

Renew or purchase annual membership? 

You can also make a donation to the LSMCA Legal Fund and/or Swan Fund.  Click HERE for online payment ​​FOR MORE INFORMATION
CONTACT: office@lsmca.com

NEW RESIDENTS: 

YOU ARE ENCOURAGED TO JOIN THE COMMUNITY ASSOCIATION. ​A $75 PER YEAR SUBSCRIPTION WILL HELP KEEP LAKE SAN MARCOS ONE OF THE MOST LIVABLE COMMUNITIES IN SOUTHERN CALIFORNIA.

View our Welcome Booklet !