Whiteside County, Illinois Zip Codes

Zip Code	City	Population
61081	Sterling	21,138
61071	Rock Falls	13,766
61270	Morrison	7,096
61252	Fulton	5,424
61277	Prophetstown	2,978
61250	Erie	2,713
61283	Tampico	1,422
61230	Albany	932
61261	Lyndon	644
61251	Fenton	382
61243	Deer Grove	277
61037	Galt	105

Population is the most recent figure from the U.S. Census Bureau's 2022 American Community Survey (ACS) 5-Year Estimates.