| Place Name | Belvidere |
| Place Type | City |
| ZIP Code(s) | 61008 |
| County | Boone County |
| Area Code(s) | 815,779 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 25,544 |
| Population Growth Rate (2010-19) | -0.96% |
| Majority Ethnicity | White 66% |
| Metro/Micro Stats Area | Rockford, IL |
| US Congressional District(s) | Illinois 16th |
| State House Districts | 69,70 |
| State Senate Districts | 35 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 66% |
| African American | 1.63% |
| Hispanic | 0.26% |
| Asian | 0.81% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 31.3% |