Pasadena is a city in Los Angeles County, California, United States, located 11 miles (18 km) northeast of Downtown Los Angeles.
The population of Pasadena was 137,122 at the 2010 census and an estimated 141,371 in 2018, making it the 40th largest city in California and the ninth-largest city in Los Angeles County. Pasadena was incorporated on June 19, 1886, becoming one of the first cities to be incorporated in what is now Los Angeles County, following the city of Los Angeles (April 4, 1850). It is one of the primary cultural centers of the San Gabriel Valley.