Sister cities of Pasadena, California

Pasadena /ˌpæsəˈdiːnə/ is a city in Los Angeles County, California, United States. As of 2010 United States Census, the population of Pasadena was 137,122, making it the 180th-largest city in the United States, down from 168th place in 2009. Pasadena is the ninth-largest city in Los Angeles County, and on June 19, 1886, became the fourth to be incorporated in Los Angeles County, after Anaheim (February 10, 1870) and Santa Ana (June 1, 1886), both of which were originally in Los Angeles County until Orange County was established in 1889. It is one of the primary cultural centers of the San Gabriel Valley.

Although famous for hosting the annual Rose Bowl football game and Tournament of Roses Parade, Pasadena is also the home to many scientific and cultural institutions, including the California Institute of Technology (Caltech), the Jet Propulsion Laboratory,Fuller Theological Seminary, Art Center College of Design, the Pasadena Playhouse, the Norton Simon Museum of Art and the Pacific Asia Museum.