Elgin is part of Kane County and ranks as one of the most rapidly growing cities in Illinois. Elgin is located 40 mi. (64.5 km) northwest of Chicago, Illinois on the Fox River. Most of Elgin lies within Kane County, Illinois, with a portion in Cook County, Illinois.

Elevation: 745 feet

Land area: 25.0 square miles

Latitude: 42.04 N,

Longitude: 88.29 W

Population: 98,645 (as on July 2005)

Winter temperature: 24.15 degrees F

Summer temperatures: 6.30 degrees F