Jefferson County ZIP Codes

List of ZIP Codes in Jefferson County

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

S.N.	Zip Code	Latitude	Longitude	City	Population	Density
1	53036	43.17141	-88.57693	Ixonia	3,483	47.0
2	53038	43.08592	-88.79031	Johnson Creek	4,319	53.9
3	53094	43.1462	-88.73365	Watertown	18,151	78.9
4	53137	43.00472	-88.66975	Helenville	1,605	18.7
5	53156	42.89069	-88.59012	Palmyra	3,314	41.5
6	53178	43.02335	-88.59894	Sullivan	2,741	33.2
7	53538	42.91697	-88.87194	Fort Atkinson	18,604	74.0
8	53549	42.99056	-88.77675	Jefferson	9,901	53.8
9	53551	43.07831	-88.91508	Lake Mills	9,485	92.6
10	53594	43.18291	-88.97168	Waterloo	5,187	27.5

About Jefferson County ZIP Codes

Jefferson County in Wisconsin (WI) is served by approximately 10 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 76,790 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 Jefferson County are located in cities such as Fort Atkinson, Watertown, Jefferson, Lake Mills, Waterloo. These cities and towns help define the economic and demographic character of the county.

Most ZIP Codes in Jefferson County, Wisconsin follow the America/Chicago time zone.

Jefferson County ZIP Codes

List of ZIP Codes in Jefferson County

About Jefferson County ZIP Codes

Wisconsin Counties ZIP Codes

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