Kane County is a county in the U.S. state of Illinois. According to the 2020 census, it has a population of 516,522, making it the fifth-most populous county in Illinois. Its county seat is Geneva, and its largest city is Aurora. Kane County is one of the collar counties of the metropolitan statistical area designated "Chicago–Naperville–Elgin, IL–IN–WI" by the US census.
History
Kane County was formed out of LaSalle County in 1836. The county was named in honor of Elias Kane, a United States senator and the first secretary of state of Illinois.
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File:Kane County Illinois 1836.png|Kane County from the time of its creation to 1837, when DeKalb County was split off
File:Kane County Illinois 1837.png|Kane County between 1837 and 1841
File:Kane County Illinois 1841.png|Kane County in 1841, reduced to its present size
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Geography
According to the U.S. Census Bureau, the county's area was , of which is land and (0.8%) is water.
In recent years, average temperatures in the county seat of Geneva have ranged from a low of in January to a high of in July, although a record low of was recorded in January 1985 and a record high of was recorded in July 1936. The average monthly precipitation ranged from in February to in July.
- Fabyan Windmill
- Hampshire Forest Preserve
- Raceway Woods