Tucson is a city in and the county seat of Pima County, Arizona, United States and home to the University of Arizona. The city is [3] located 108 miles (174 km) southeast of Phoenix and 60 mi (97 km) north of the U.S.-Mexico border. Tucson is the 33rd largest city and the 59th largest metropolitan area in the United States. As one of the oldest parts of town, Central Tucson is anchored by the Broadway Village shopping center. The 4th Avenue Shopping District between downtown and the University and the Lost Barrio just East of downtown, also have many unique and popular stores. Local retail business in Central Tucson is densely concentrated along Fourth Avenue and the Main Gate Square on University Boulevard near the UA campus. The El Con Mall is also located in the eastern part of midtown.