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/EUREKA

Eureka ZIP code, Wisconsin

The ZIP code for Eureka, WI is 54934, and its area codes are 920 and 274.

USPS city name
1 ZIP code
Overlapping the city
1 more
Population
167
Area codes
920, 274

NANPA lists no telephone rate centre for Eureka itself, so these are the area codes of the nearest one, Omro (4.6 miles). A town on an area-code boundary can differ from its neighbour.

Mail addressed to Eureka uses the ZIP code above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.

ZIP codes addressed as Eureka

ZIP codes with the USPS city name Eureka
ZIP City Type
54934 Eureka , WI No street area

Other ZIP codes overlapping Eureka

These ZIP codes cover part of Eureka but are addressed as somewhere else.

ZIP codes overlapping Eureka
ZIP City Type Population Median income Median home
54963 Omro , WI Standard 7,271 $86,227 $238,200

Towns near Eureka

The nearest larger towns are Waukau (325 people, 3.9 mi), Omro (3,642 people, 5.5 mi) and Berlin (5,562 people, 6.1 mi).

Towns near Eureka
TownPopulationDistance
Omro 3,642 5.5 mi
Berlin 5,562 6.1 mi
Winneconne 2,511 9.4 mi
Ripon 7,772 11.6 mi
Oshkosh 66,729 13.9 mi
Neenah 27,336 20.8 mi
North Fond du Lac 5,392 22.5 mi
Fox Crossing 19,131 23.2 mi
Greenville 12,987 23.8 mi
Hortonville 3,256 24.6 mi
Menasha 18,273 24.8 mi
Fond du Lac 44,494 25.9 mi
Waupaca 6,283 26.0 mi
Waupun 11,174 26.8 mi

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

Cite this page

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

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