Aptos Hills-Larkin Valley is an unincorporated community in Santa Cruz County, California, United States.

It is identified as one of several small communities with a combined population of 24,402 forming the unincorporated town of Aptos by the local Chamber of Commerce along with: For statistical purposes, the United States Census Bureau has defined Aptos Hills-Larkin Valley as a census-designated place (CDP).

The racial makeup of Aptos Hills-Larkin Valley was 1,936 (81.3%) White, 12 (0.5%) African American, 5 (0.2%) Native American, 55 (2.3%) Asian, 1 (0.0%) Pacific Islander, 295 (12.4%) from other races, and 77 (3.2%) from two or more races.

There were 921 housing units at an average density of 99.3 per square mile (38.3/km2), of which 78.8% were owner-occupied and 21.2% were occupied by renters.

There were 881 housing units at an average density of 95.1 per square mile (36.7/km2).

The racial makeup of the CDP was 84.50% White, 0.64% African American, 0.38% Native American, 1.86% Asian, 0.30% Pacific Islander, 7.62% from other races, and 4.70% from two or more races.

In the California State Legislature, Aptos Hills-Larkin Valley is in the 17th Senate District, represented by Democrat John Laird, and in the 29th Assembly District, represented by Democrat Robert Rivas.

[23] In the United States House of Representatives, Aptos Hills-Larkin Valley is in California's 20th congressional district, represented by Republican Vince Fong.