Monroe County ZIP Codes

List of ZIP Codes in Monroe County

The following table lists ZIP Codes associated with Monroe 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	62236	38.43391	-90.21141	Columbia	14,175	90.7
2	62244	38.19142	-90.1965	Fults	1,155	9.4
3	62248	38.30543	-89.99341	Hecker	556	852.5
4	62256	38.22623	-90.23152	Maeystown	38	124.7
5	62278	38.20528	-89.99116	Red Bud	6,425	23.7
6	62279	38.13796	-90.13695	Renault	69	16.1
7	62295	38.27126	-90.30895	Valmeyer	1,310	7.2
8	62298	38.30906	-90.15132	Waterloo	17,907	48.3

About Monroe County ZIP Codes

Monroe 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 41,635 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 Monroe County are located in cities such as Waterloo, Columbia, Red Bud, Valmeyer, Fults. These cities and towns help define the economic and demographic character of the county.

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

Monroe County ZIP Codes

List of ZIP Codes in Monroe County

About Monroe County ZIP Codes

Illinois Counties ZIP Codes

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