Nipomo is a census-designated place in San Luis Obispo County, California, United States. The population was 12,626 at the 2000 census, and grew to 16,714 for the 2010 census. The name is a transliteration of the Obispeño phrase nipumuʔ, meaning "Place of the big house" or "Village". Nipumuʔ was the name of a Chumash tribal site located in the present-day area of Nipomo.
At the 2010 census Nipomo had a population of 16,714. The population density was 1,125.4 people per square mile (434.5/km2). The racial makeup of Nipomo was 12,281 (73.5%) White, 177 (1.1%) African American, 200 (1.2%) Native American, 421 (2.5%) Asian, 33 (0.2%) Pacific Islander, 2,821 (16.9%) from other races, and 781 (4.7%) from two or more races. Hispanic or Latino of any race were 6,645 persons (39.8%). The census reported that 16,703 people (99.9% of the population) lived in households, 11 (0.1%) lived in non-institutionalized group quarters, and no one was institutionalized.
Nipomo is located at 35°1′48″N 120°29′24″W (35.0300, -120.4900). According to the United States Census Bureau, the CDP has a total area of 14.9 square miles (39 km2), virtually all of it land.
This region experiences warm and dry summers, with no average monthly temperatures above 71.6 °F. According to the Köppen Climate Classification system, Nipomo has a warm-summer Mediterranean climate, abbreviated "Csb" on climate maps.