WordNet (r) 3.0 (2006):

Jansen
    n 1: a Dutch Roman Catholic theologian (1585-1638) [syn:
         Jansen, Cornelis Jansen, Cornelius Jansenius]

U.S. Gazetteer Places (2000):

Jansen, NE -- U.S. village in Nebraska
   Population (2000):    143
   Housing Units (2000): 72
   Land area (2000):     0.222536 sq. miles (0.576365 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.222536 sq. miles (0.576365 sq. km)
   FIPS code:            24530
   Located within:       Nebraska (NE), FIPS 31
   Location:             40.185711 N, 97.082704 W
   ZIP Codes (1990):     68377
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Jansen, NE
    Jansen