Kendall -- U.S. County in Illinois Population (2000): 54544 Housing Units (2000): 19519 Land area (2000): 320.578618 sq. miles (830.294774 sq. km) Water area (2000): 2.090371 sq. miles (5.414036 sq. km) Total area (2000): 322.668989 sq. miles (835.708810 sq. km) Located within: Illinois (IL), FIPS 17 Location: 41.641529 N, 88.424929 W Headwords: Kendall Kendall, IL Kendall County Kendall County, IL