Warren County ZIP Codes

List of ZIP Codes in Warren County

The following table lists ZIP Codes associated with Warren 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	61417	40.77222	-90.54413	Berwick	176	2.9
2	61423	40.8855	-90.50232	Cameron	649	5.8
3	61435	40.99559	-90.5686	Gerlaw	181	4.0
4	61447	40.87105	-90.76674	Kirkwood	1,053	9.6
5	61453	41.01345	-90.76322	Little York	675	4.6
6	61462	40.91014	-90.65176	Monmouth	10,640	28.9
7	61473	40.70914	-90.64975	Roseville	1,269	4.6
8	61478	40.75633	-90.76035	Smithshire	397	4.4

About Warren County ZIP Codes

Warren County in Illinois (IL) is served by approximately 8 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 15,040 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 Warren County are located in cities such as Monmouth, Roseville, Kirkwood, Little York, Cameron. These cities and towns help define the economic and demographic character of the county.

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

Warren County ZIP Codes

List of ZIP Codes in Warren County

About Warren County ZIP Codes

Illinois Counties ZIP Codes

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