Lompico (from Loma and Pico, Spanish for "Hill" and "Peak")[4][5] is a census-designated place (CDP) in Santa Cruz County, California.

According to the United States Census Bureau, the CDP covers an area of 3.4 square miles (8.7 km2), all of it land.

This region experiences warm (but not hot) and dry summers, with no average monthly temperatures above 71.6 °F.

135 households (28.1%) were made up of individuals, and 14 (2.9%) had someone living alone who was 65 years of age or older.

There were 550 housing units at an average density of 163.0 per square mile (62.9/km2), of which 79.0% were owner-occupied and 21.0% were occupied by renters.