The Collaborative International Dictionary of English v.0.48:

Acadia \Acadia\ n.
   1. the French-speaking part of the Canadian Maritime
      Provinces.
      [WordNet 1.5]

WordNet (r) 3.0 (2006):

Acadia
    n 1: the French-speaking part of the Canadian Maritime Provinces

U.S. Gazetteer Counties (2000):

Acadia -- U.S. Parish in Louisiana
   Population (2000):    58861
   Housing Units (2000): 23209
   Land area (2000):     655.283133 sq. miles (1697.175452 sq. km)
   Water area (2000):    2.332112 sq. miles (6.040142 sq. km)
   Total area (2000):    657.615245 sq. miles (1703.215594 sq. km)
   Located within:       Louisiana (LA), FIPS 22
   Location:             30.266850 N, 92.365871 W
   Headwords:
    Acadia
    Acadia, LA
    Acadia Parish
    Acadia Parish, LA