Whiteside County, Illinois
Whiteside County | |
|---|---|
Whiteside County Courthouse, Morrison | |
Location within the U.S. state of Illinois | |
Illinois's location within the U.S. | |
| Coordinates: 41°45′N 89°55′W / 41.75°N 89.91°W | |
| Country | United States |
| State | Illinois |
| Founded | 1836 |
| Named after | Samuel Whiteside |
| Seat | Morrison |
| Largest city | Sterling |
| Area | |
• Total | 697 sq mi (1,810 km2) |
| • Land | 684 sq mi (1,770 km2) |
| • Water | 12 sq mi (30 km2) 1.8% |
| Population (2020) | |
• Total | 55,691 |
• Estimate (2023) | 54,498 |
| • Density | 80/sq mi (31/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 17th |
| Website | www |
Whiteside County is a county located in the U.S. state of Illinois. According to the 2020 census, it had a population of 55,691. Its county seat is Morrison. The county is bounded on the west by the Mississippi River. Whiteside County comprises the Sterling, IL Micropolitan Statistical Area, which is also included in the Dixon-Sterling, IL Combined Statistical Area. U.S. President Ronald Reagan was born in 1911 in the Whiteside County community of Tampico.