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.

VETERANS DAY NOVEMBER 11, 2026

Today, we extend our sincere appreciation to all individuals who have served in the United States armed forces.  Thank you for your service and Happy Veterans Day!

3RD ANNUAL GOLF TOURNAMENT

Thursday, Nov 19th at the LSM Executive 

Golf Course. Tropical theme, prizes, 50/50 opportunity drawing and silent auction.  Call the office for more details 760-744-4306.

GOLF TOURNAMENT SPONSORSHIP OPPORTUNITIES AVAILABLE

Sponsor a hole for $250 or consider making a donation to our silent auction. A gift valued at $50.00 or more. This is a fundraising event for LSMCA.  Call the office for more details.

CALLING ALL LSM COMMUNITY CONTRIBUTORS

We are looking for volunteers to help organize community activities, educational events, etc. and we would love your help! Call or stop by the officed to learn more. 760-744-4306 | 1030 La Bonita Dr. Ste 342 | office@lsmca.com 

Renew or Purchase An Annual Membership

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

NEW RESIDENTS: 

Welcome to the Lake! You are encouraged to join the Community Association and learn all about the events and activities at the lake.  As a new owner you are eligible for a free membership during the current membership year, October 1, 2026 - September 30, 2027.  Stop by the office for your welcome packet! FOR MORE INFORMATION CONTACT: office@lsmca.com or contact the office at 

760-744-4306.

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