page_title: Whiteside County, Illinois
hierarchical_section_title: Whiteside County, Illinois
context_page_description: Whiteside County is a county in the U.S. state of Illinois. According to the 2010 census, it had a population of 58,498. The county seat is Morrison.
  Former U.S. President Ronald Reagan was born in the Whiteside County community of Tampico.
context_section_description: Whiteside County is a county in the U.S. state of Illinois. According to the 2010 census, it had a population of 58,498. The county seat is Morrison.
  Former U.S. President Ronald Reagan was born in the Whiteside County community of Tampico.
caption: Location within the U.S. state of Illinois