Santa Fe is the capital of the state of New Mexico. It is the fourth-largest city in the state and is the seat of Santa Fe County. Santa Fe is the oldest capital city in the United States and the oldest city in New Mexico. Santa Fe had a population of 69,204 in 2012. It is the principal city of a Metropolitan Statistical Area which encompasses all of Santa Fe County and is part of the larger Albuquerque-Santa Fe-Las Vegas Combined Statistical Area. The city’s full name when founded was La Villa Real de la Santa Fe de San Francisco de Asís. ...more on Wikipedia