Sister cities of San Bernardino, California

San Bernardino is a city located in the Riverside-San Bernardino metropolitan area (sometimes called the "Inland Empire"). It serves as the county seat of San Bernardino County, California, United States. As one of the Inland Empire's anchor cities, San Bernardino spans 81 square miles (210 km²) on the floor of the San Bernardino Valley, and has a population of 209,924 as of the 2010 census. San Bernardino is the 17th largest city in California, and the 99th largest city in the United States.

California State University, San Bernardino is located in the northeastern part of the city. The university also hosts the Coussoulis Arena. Other attractions in San Bernardino include ASU Fox Theatre, the McDonald's Museum, which is located on the original site of the world's first McDonald's (at 34°07′32″N 117°17′41″W / 34.1255°N 117.2946°W / 34.1255; -117.2946), California Theatre, the San Bernardino Mountains, and San Manuel Amphitheater, the largest outdoor amphitheater in the United States. In addition, the city is home to the Inland Empire 66ers of San Bernardino baseball team, they play their home games at San Manuel Stadium in downtown San Bernardino.

In July 2012, San Bernardino became the largest city to that date to choose to file for protection under Chapter 9 of the U.S. Bankruptcy code; this has been superseded by Detroit's filing in July 2013. San Bernardino's case was filed on August 1.

San Bernardino is the poorest city of its population size in California, and the second poorest in the US next to Detroit, Michigan.