WordNet (r) 3.0 (2006):

Perth
    n 1: the state capital of Western Australia

U.S. Gazetteer Places (2000):

Perth, ND -- U.S. city in North Dakota
   Population (2000):    13
   Housing Units (2000): 6
   Land area (2000):     0.131818 sq. miles (0.341408 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.131818 sq. miles (0.341408 sq. km)
   FIPS code:            61780
   Located within:       North Dakota (ND), FIPS 38
   Location:             48.715578 N, 99.458423 W
   ZIP Codes (1990):     58363
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Perth, ND
    Perth