Twin Lakes is a census-designated place (CDP) in Santa Cruz County, California, United States.

It is a mile long beach popular for swimming and picnicking.

It has some hiking trails, but it also known for stand-up paddle boarding, and other beach activities.

The racial makeup of Twin Lakes was 3,900 (79.3%) White, 70 (1.4%) African American, 61 (1.2%) Native American, 126 (2.6%) Asian, 8 (0.2%) Pacific Islander, 534 (10.9%) from other races, and 218 (4.4%) from two or more races.

There were 2,745 housing units at an average density of 3,933.6 per square mile (1,518.8/km2).

The racial makeup of the CDP was 78.84% White, 0.90% African American, 0.63% Native American, 2.30% Asian, 0.18% Pacific Islander, 12.43% from other races, and 4.72% from two or more races.

In the California State Legislature, Twin Lakes is in the 17th Senate District, represented by Democrat John Laird, and in the 29th Assembly District, represented by Democrat Robert Rivas.

[8] In the United States House of Representatives, Twin Lakes is in California's 20th congressional district, represented by Republican Vince Fong.