The Collaborative International Dictionary of English v.0.48:

Kersey \Ker"sey\, n.; pl. Kerseys. [Prob. from the town of
   Kersey in Suffolk, Eng.]
   A kind of coarse, woolen cloth, usually ribbed, woven from
   wool of long staple.
   [1913 Webster]

U.S. Gazetteer Places (2000):

Kersey, CO -- U.S. town in Colorado
   Population (2000):    1389
   Housing Units (2000): 489
   Land area (2000):     0.974172 sq. miles (2.523093 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.974172 sq. miles (2.523093 sq. km)
   FIPS code:            40515
   Located within:       Colorado (CO), FIPS 08
   Location:             40.386060 N, 104.561453 W
   ZIP Codes (1990):     80644
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Kersey, CO
    Kersey