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is a city in Cochise County, Arizona, USA. According to 2005 Census Bureau estimates, the population of the city is 41,908. Fort Huachuca, a U.S. Army post, is located in the northwest part of the city.
According to the United States Census Bureau, the city has a total area of 153.5 square miles (397.5 km²), of which 153.5 square miles (397.5 km²) is land and 0.04 square miles (0.1 km²) is water. It is located above sea level.