Cypress is a city in northwestern Orange County within Southern California. Its population was 50,151 at the 2020 census.
Cypress originally was nicknamed "Waterville" due to the preponderance of artesian wells in the area, but was incorporated under the name Dairy City in 1956 by local dairy farmers as a means of staving off developers and to preserve their dairies, much like the then-neighboring cities of Dairy Valley in Cerritos and Dairyland in La Palma. After World War II, however, the land became too valuable for farming or ranching, and the dairies gradually sold out to housing developers during the 1960s, so that by the 1970s no dairies remained. Many of the dairymen moved their operations to Chino, where development is once again pushing them out of the area.
In 1957 local residents voted to change the name of "Dairy City" to "Cypress". The name was taken from Cypress Elementary School (originally built in 1895) which took its name from the Cypress trees p