Kane County /

Kane County is a county located in the U.S. state of Illinois. In 2000, the population of the county was 404,119. The U.S. Census Bureau population for 2010 is 515,269. This county is part of the Chicago Metropolitan Area. Its county seat is Geneva, and its largest city is Aurora. According to the 2000 census, the county has a total area of 524.08 square miles (1,357.4 km), of which 520.44 square miles (1,347.9 km) (or 99.31%) is land and 3.64 square miles (9.4 km) (or 0.69%) is water. Its largest cities are situated along the Fox River. Kane County was formed out of LaSalle County in 1836. The County was named in honor of Elias Kane, United States Senator from Illinois, and the first Secretary of State of Illinois. As of the census of 2000, there were 404,119 people, 133,901 households, and 101,496 families residing in the county. The population density was 776 people per square mile (300/km²). There were 138,998 housing units at an average density of 267 per square mile (103/km²). The racial makeup of the county was 79.27% White, 5.76% Black or African American, 0.31% Native American, 1.81% Asian, 0.04% Pacific Islander, 10.61% from other races, and 2.21% from two or more races.