is a city in and the county seat of
Pima County, Arizona, United States.
The city is located 118 miles (188
km) southeast of Phoenix and 60
miles (98 km) north of the
U.S.-Mexico border. The 2009 Census
Bureau estimate puts the city's
population at 548,555, with a
metropolitan area population at
1,023,320 as of July 1, 2008. In
2005, Tucson ranked as the 32nd
largest city and 52nd largest
metropolitan area in the United
States. It is the largest city in
southern Arizona and the second
largest in the state after Phoenix.
Tucson is home to the University of
incorporated suburbs of Tucson
include Oro Valley and Marana
northwest of the city, Sahuarita
south of the city, and South Tucson
in an enclave south of downtown.
Communities in the vicinity of
Tucson (some within or overlapping
the city limits) include Casas
Adobes, Catalina, Catalina
Foothills, Flowing Wells, Green
Valley, Tanque Verde, New Pascua,
Vail, and Benson.
has four main mountain ranges, one
to the north known as the Santa
Catalina Mountains, to the east are
the Rincon Mountains, south the
Santa Rita Mountains will be found,
and west are the Tucson Mountains.
The highest point in the area is
Mount Wrightson found in the Santa
Rita Mountains at 9,453 feet above
sea level, surpassing Mount Lemmon
by about 300 feet.
English name Tucson derives from the
Spanish name of the city, Tucsón,
which was borrowed from the O'odham
name meaning "(at the) base of the
black [hill]", a reference to an
adjacent volcanic mountain. Tucson
is sometimes referred to as "The Old