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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/MILLTOWN

Milltown ZIP code, Wisconsin

The ZIP code for Milltown, WI is 54858, and its area code is 715.

USPS city name
1 ZIP code
Population
861
Area code
715

Milltown in numbers

About 861 people live in Milltown, in 448 households. The median household income is $42,083 a year, 46% below the Wisconsin median of $77,485 (US: $80,734). The median owner-occupied home is valued at $123,100 (54% below the Wisconsin median), and median gross rent is $715 a month. The median age is 54.4; 8.8% of adults 25 and over hold a bachelor's degree or higher (33.4% across Wisconsin); the average commute takes 25 minutes.

Population861Milltown861
Households448Milltown448
Median age54.4Milltown54.4Wisconsin40.2US 38.9
Median household income$42,083Milltown$42,083Wisconsin$77,485US $80,734
Median home value$123,100Milltown$123,100Wisconsin$266,500US $332,700
Median gross rent$715Milltown$715Wisconsin$1,087US $1,413
Bachelor's degree or higher8.8%Milltown8.8%Wisconsin33.4%US 35.7%
Mean commute25.3 minMilltown25.3 minWisconsin22.2 minUS 26.4 min
Population density475 / sq miMilltown475 / sq mi

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

ZIP codes addressed as Milltown

ZIP codes with the USPS city name Milltown
ZIP City Type Population Median income Median home
54858 Milltown , WI Standard 1,636 $53,901 $213,100

Map of Milltown ZIP codes

54858

The ZIP codes of Milltown, 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 Milltown

The nearest larger towns are Luck (1,124 people, 4.2 mi), Frederic (1,140 people, 9.3 mi) and St. Croix Falls (2,423 people, 9.7 mi).

Towns near Milltown
TownPopulationDistance
Amery 2,959 16.3 mi
Osceola 2,849 16.9 mi
Lindstrom, MN 4,978 19.2 mi
North Branch, MN 11,565 22.1 mi
Chisago City, MN 5,899 22.7 mi
Stacy, MN 4,384 23.8 mi
Scandia, MN 3,950 24.7 mi
Rush City, MN 3,295 25.3 mi
Wyoming, MN 8,087 26.0 mi
New Richmond 10,539 27.5 mi
Somerset 3,208 28.6 mi
Forest Lake, MN 20,729 29.4 mi

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

Cite this page

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

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