|Whiteside County Illinois Cities/Towns -
Albany, Coleta, Deer Grove, Erie, Fulton, Garden Plain, Hahnaman, Lyndon, Morrison (County Seat), Newton Corners, Portland, Prophetstown, Rock Falls, Sterling, Tampico, Union Grove, Ustick
|Your Ad Here|
Whiteside County is a county located in the U.S. state of Illinois. A 2016 population estimae was 56,536. Its county seat is Morrison.
Whiteside County was formed in 1836. It was named for General Samuel Whiteside, an Illinois officer in the War of 1812 and Black Hawk War. Former U.S. President Ronald Reagan was born in the Whiteside County community of Tampico.