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Scott Brown — eXp Realty
Licensed in California (DRE #01956840). Call or text for a direct answer on local listings, pricing, or new construction.
Call/text (707) 474-8855Lake San Marcos, CA · Census-designated place
Lake San Marcos, California houses and real estate market data.
Houses in Lake San Marcos, CA (San Diego County) — market data for Lake San Marcos houses and the whole local market.
Census-designated place · Census GEOID 0639724
FEATURED LISTING: WATERFRONT LAKE HOME FOR SALE
Clearlake Oaks Canal-Front Oasis
$425,000 • 3 Beds • 2 Baths • 1,204 Sq Ft
554 Keys, Clearlake Oaks, CA 95423
Luxury Living Lake Lifestyle – Deep Water Access to Clear Lake: PAID-OFF SOLAR • 10-Ft Concrete Seawall • Double Boat Lifts & Private Dock • Hot Tub • Mini-Split HVAC • Close to SF Bay / Wine Country • Cleanest Air in America (Lake County CA) • Spacious Patio and Deck • Open Floor Plan • RV/Boat Parking • Want the Boats? • Make Offer ASAP This Lake Home For Sale in California won't last!
*Listed by Scott Brown, eXp Realty of California, Inc. DRE #01956840. Inquiries delivered directly to listing agent. Search.USAHouses.com*
Contact Agent Direct:
Scott Brown - eXp Realty
Scott@USAHouses.com
Call/Text (707) 474-8855
Click Anywhere on Ad for More Info / Listing Page
Lake San Marcos, CA is a Census-designated place in San Diego County, California — this guide covers houses in Lake San Marcos and the whole local market: resale homes, condos, land, and new construction.
Info from government sites and builders may have provided source info.
Open map pin ↗ · 33.122362, -117.208576
At a glance
Lake San Marcos market snapshot
Place type
Census-designated place
County
San Diego County
Map pin
33.122362, -117.208576
Census GEOID
0639724
Land area
1.71 sq mi
Market data compiled from public sources; deemed reliable but not guaranteed; verify independently. Full source list ↗
Local resources
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What makes Lake San Marcos different
Census-designated place
The U.S. Census Bureau lists Lake San Marcos as a Census-designated place in San Diego County, California — a settled community that is not an incorporated city, town, or village. This page uses the same /california/lake-san-marcos/ guide pattern as incorporated places.
Nearby
Places around Lake San Marcos
County guide: San Diego County — cities, market context, and local resources for the county that includes Lake San Marcos.
USAHouses.com also lists other San Diego County places in California. Each linked guide uses the same Census place geography.
Nearby communities include San Marcos, Elfin Forest, Carlsbad, Harmony Grove, Vista, Encinitas, Del Dios, Rancho Santa Fe.
San Marcos market data
Nearby city · ~2.3 mi
Elfin Forest market data
Nearby city · ~3.4 mi
Carlsbad market data
Nearby city · ~4.4 mi
Harmony Grove market data
Nearby city · ~4.4 mi
Vista market data
Nearby city · ~5.0 mi
Encinitas market data
Nearby city · ~5.9 mi
Del Dios market data
Nearby city · ~6.1 mi
Rancho Santa Fe market data
Nearby city · ~6.7 mi
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Common questions
Lake San Marcos FAQ
What kind of place is Lake San Marcos, CA?
The U.S. Census Bureau lists Lake San Marcos as a Census-designated place in San Diego County, California — a settled community that is not an incorporated city, town, or village.
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🔥 Paid Advertisement: NEW HOME FOR SALE BY OWNER (Builder)
Northern California Luxury Home
3+ Beds • 4 Baths • 2,964 Sq Ft
17867 Deer Hill Rd, Hidden Valley Lake, CA 95467
Brand New 2026 Construction with LAKE VIEWS:
SPACIOUS LOT • Open Floor plan • Chef's kitchen • Interior aquarium • Dual fireplaces • Solar • EV-ready 3-car garage • Waterfall fountain • Great Views • Gated & Guarded Community • Golf Course • Driving Range • Community Pool • Private Lake
📩 Contact Owner Direct
Michael@Fonestream.net
*USA Houses LLC provides paid advertising space only. Property is listed with an outside MLS brokerage. Inquiries are delivered directly to the advertiser.*