Whiteside County ZIP Codes

List of ZIP Codes in Whiteside County

The following table lists ZIP Codes associated with Whiteside County, Illinois, based on ZIP Code Tabulation Area (ZCTA) data from the U.S. Census Bureau.

S.N.	Zip Code	Latitude	Longitude	City	Population	Density
1	61037	41.7882	-89.75978	Galt	100	284.2
2	61071	41.72599	-89.70006	Rock Falls	13,482	71.8
3	61081	41.84425	-89.73613	Sterling	20,916	64.9
4	61230	41.74074	-90.21447	Albany	1,028	20.6
5	61243	41.61849	-89.6784	Deer Grove	167	2.5
6	61250	41.65884	-90.10081	Erie	2,843	12.6
7	61251	41.72909	-90.07291	Fenton	336	7.4
8	61252	41.8435	-90.12272	Fulton	5,369	35.3
9	61261	41.72928	-89.91166	Lyndon	691	16.1
10	61270	41.82971	-89.9656	Morrison	7,067	18.1
11	61277	41.60425	-89.93251	Prophetstown	2,983	8.6
12	61283	41.59094	-89.78854	Tampico	1,349	6.2

About Whiteside County ZIP Codes

Whiteside County in Illinois (IL) is served by approximately 12 ZIP Codes. These codes cover residential neighborhoods, business districts, and rural areas that fall under the county's jurisdiction.

Based on ZIP-level population estimates, the total population covered by these ZIP Codes is around 56,331 people. Population and density values vary from one ZIP Code to another, reflecting the mix of dense urban communities and lower-density suburban or rural zones.

Many of the most significant population centers in Whiteside County are located in cities such as Sterling, Rock Falls, Morrison, Fulton, Prophetstown. These cities and towns help define the economic and demographic character of the county.

Most ZIP Codes in Whiteside County, Illinois follow the America/Chicago time zone.

Whiteside County ZIP Codes

List of ZIP Codes in Whiteside County

About Whiteside County ZIP Codes

Illinois Counties ZIP Codes

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