San Francisco

San Francisco (Spanish for Saint Francis), officially the City and County of San Francisco, population 870,000,  is "the cultural, commercial, and financial center of Northern California." (Wikipedia). Located at the north end of the San Francisco Peninsula, and at the "Golden Gate" or narrow mouth of San Francisco Bay, after which the city was named, San Francisco is about 47.9 square miles (124 km2) in area, making it the smallest county—and the only consolidated city-county—within the state of California.

With a density of about 18,581 people per square mile (7,174 people per km2), San Francisco is the most densely settled large city (population greater than 200,000) in California and the second-most densely populated major city in the United States after New York City.  San Francisco is the fourth-most populous city in California, after Los Angeles, San Diego, and San Jose, and the 13th-most populous city in the United States—with a census-estimated 2016 population of 870,887.[20] The city and its surrounding areas are known as the San Francisco Bay Area, and are a part of the larger OMB-designated San Jose-San Francisco-Oakland combined statistical area, the fifth most populous in the nation with an estimated population of 8.7 million.

  -- adapted from Wikipedia: San Francisco. 
 

Nicknames & Motto

The City; The City by the Bay; The Golden City; Fog City; San Fran, Saint Frank, Frisco (all 3 locally disparaged); The City that Knows How (past); Baghdad by the Bay (past); The Paris of the West (past)

Motto:Oro en Paz, Fierro en Guerra (Spanish); (English: "Gold in Peace, Iron in War").