Belvidere is a city located in Boone County, in the state of Illinois (IL), United States. Nestled in the East North Central division of the Midwest region, it covers an area of 9.1 square miles (23.0 km²) and sits at an elevation of 770 ft. With a population of approximately 20,820 residents, Belvidere offers a vibrant community life.
The town's population is composed of about 49.29% males and 50.71% females, and it has a population density of 295.48 people per square mile (886.29/km²). Belvidere lies at a latitude of 42.25 and a longitude of -88.84, operating in the UTC-6.
Locals reflect a blend of American ancestry, with roots primarily in United States (5.2%), followed by English (9%), German (30.4%), and Scotch-Irish (0%) heritage. The town is identified by the ZIP code 61008.