Lexington Hills is a scenic, unincorporated community in Santa Clara County, California, nestled in the Santa Cruz Mountains. Known for its natural beauty, Lexington Hills is surrounded by forests, hills, and proximity to the Lexington Reservoir. The reservoir is a popular spot for fishing, hiking, and picnicking, and the area's dense tree cover provides a tranquil, secluded environment. The population was 2,492 at the 2020 census.