'Allen County, KS' definitions:

Allen -- U.S. County in Kansas

From: Gazetteer 2000
Name :
Allen -- U.S. County in Kansas
Population (2000) :
14385
Housing Units (2000) :
6449
Land area (2000) :
503.006671 sq. miles (1302.781243 sq. km)
Water area (2000) :
2.175619 sq. miles (5.634828 sq. km)
Total area (2000) :
505.182290 sq. miles (1308.416071 sq. km)
Located within :
Kansas (KS), FIPS 20
Location :
37.886958 N, 95.344996 W