'Pleasanton, CA' definitions:

Pleasanton, CA -- U.S. city in California

From: Gazetteer 2000
Name :
Pleasanton, CA -- U.S. city in California
Population (2000) :
63654
Housing Units (2000) :
23968
Land area (2000) :
21.665211 sq. miles (56.112637 sq. km)
Water area (2000) :
0.165648 sq. miles (0.429026 sq. km)
Total area (2000) :
21.830859 sq. miles (56.541663 sq. km)
FIPS code :
57792
Located within :
California (CA), FIPS 06
Location :
37.672530 N, 121.882517 W
ZIP Codes (1990) :
94566 94588
Note :
some ZIP codes may be omitted esp. for suburbs.