Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/WI/MONROE

Monroe ZIP code, Wisconsin

The ZIP code for Monroe, WI is 53566, and its area code is 608.

USPS city name
1 ZIP code
Population
10,587
Area code
608

Monroe in numbers

About 10,587 people live in Monroe, in 5,157 households. The median household income is $69,334 a year, 11% below the Wisconsin median of $77,485 (US: $80,734). The median owner-occupied home is valued at $195,300 (27% below the Wisconsin median), and median gross rent is $862 a month. The median age is 42.5; 27.3% of adults 25 and over hold a bachelor's degree or higher (33.4% across Wisconsin); the average commute takes 18 minutes.

Population10,587Monroe10,587
Households5,157Monroe5,157
Median age42.5Monroe42.5Wisconsin40.2US 38.9
Median household income$69,334Monroe$69,334Wisconsin$77,485US $80,734
Median home value$195,300Monroe$195,300Wisconsin$266,500US $332,700
Median gross rent$862Monroe$862Wisconsin$1,087US $1,413
Bachelor's degree or higher27.3%Monroe27.3%Wisconsin33.4%US 35.7%
Mean commute18.3 minMonroe18.3 minWisconsin22.2 minUS 26.4 min
Population density1,838 / sq miMonroe1,838 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Monroe city. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Monroe

ZIP codes with the USPS city name Monroe
ZIP City Type Population Median income Median home
53566 Monroe , WI Standard 14,901 $74,058 $220,400

Map of Monroe ZIP codes

53566

The ZIP codes of Monroe, WI, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Monroe

The nearest larger towns are Freeport, IL (23,505 people, 22 mi), Oregon (11,547 people, 26 mi) and Verona (15,232 people, 27 mi).

Towns near Monroe
TownPopulationDistance
Brodhead 3,197 13.4 mi
Lena, IL 2,761 18.1 mi
Belleville 2,579 18.7 mi
Evansville 5,782 21.2 mi
Freeport, IL 23,505 21.7 mi
Oregon 11,547 25.6 mi
Verona 15,232 27.3 mi
Mount Horeb 7,736 28.2 mi
Fitchburg 32,619 28.6 mi

More nearby: every ZIP code in Green County · Wisconsin ZIP codes

Cite this page

zipcodes.pro. “Monroe, WI ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/wi/monroe

Underlying data is public domain or openly licensed — sources, vintages and licences.