Simi Valley Neighborhoods: Sinaloa Lake

A hidden private reservoir with nearly 100 years of Simi Valley history.

Did you know Sinaloa Lake is a private 12-acre reservoir tucked beside Sinaloa Golf Course?


Built for agriculture: The Robertson family constructed an earthen dam between 1925 and 1929 to collect water for irrigating their ranch, orchards and crops.


The story behind the name: Tom and Dorothy Robertson came to Simi Valley from Los Mochis, Sinaloa, Mexico. Their property became known as Sinaloa Ranch, and the lake was also known over the years as Robertson Lake and Sinaloa Reservoir.


Drained and brought back to life: After heavy rains raised concerns about the dam in 1983, the lake was drained. Around 2000, the Sinaloa Lake Owners Association rebuilt the dam, cleared years of overgrowth and allowed runoff from the surrounding hills to refill the lake.


A true neighborhood treasure: The Sinaloa Lake Owners Association dates back to the early 1960s, when the community purchased the lake from a rancher who had used it to irrigate orange groves.


Wildlife & fishing: The freshwater lake is stocked with fish, including crappie and largemouth bass, and provides habitat for local and migrating birds throughout the year.


PRIVATE LAKE. BIG SIMI VALLEY STORY.


Sinaloa Lake is one of those special places that connects Simi Valley’s agricultural roots, neighborhood history and beautiful natural surroundings.


Ready to make your move in Sinaloa Lake or Simi Valley this fall? Get a free, personalized home prep plan to learn what to fix, what to skip, and what your home is realistically worth today.


Call or text (805) 428-1100, browse our neighborhoods, or get oriented with the Buyers Guide.



Debbie Gates, REALTOR® · DRE #01458529 · eXp Realty of Greater Los Angeles Inc. · CA DRE #02188471 · Equal Housing Opportunity

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