Aptos is a census-designated place (CDP) in Santa Cruz County, California, United States. The population was 6,220 at the 2010 census. Aptos is bisected northwest-to-southeast by the State Route 1 freeway. Aptos is also an unincorporated town defined by ZIP codes 95001 and 95003. The town includes several small communities with a combined population of 24,402: Aptos is located at 36°58'53?N 121°54'27?W? / ?36.98139°N 121.90750°W? / 36.98139; -121.90750 (36.981500, -121.907432).