WordNet (r) 3.0 (2006):

Tucson
    n 1: a city in southeastern Arizona ringed by mountain ranges;
         long known as a winter and health resort but the population
         shift from industrial states to the Sunbelt resulted in
         rapid growth late in the 20th century

U.S. Gazetteer Places (2000):

Tucson, AZ -- U.S. city in Arizona
   Population (2000):    486699
   Housing Units (2000): 209609
   Land area (2000):     194.673516 sq. miles (504.202071 sq. km)
   Water area (2000):    0.419297 sq. miles (1.085973 sq. km)
   Total area (2000):    195.092813 sq. miles (505.288044 sq. km)
   FIPS code:            77000
   Located within:       Arizona (AZ), FIPS 04
   Location:             32.214476 N, 110.918192 W
   ZIP Codes (1990):     85701 85705 85706 85708 85710 85711
                         85712 85713 85714 85715 85716 85718
                         85719 85730 85735 85736 85741 85743
                         85745 85746 85747 85748 85749
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Tucson, AZ
    Tucson