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/POST-LAKE

Post Lake ZIP codes, Wisconsin

No ZIP code is named for Post Lake, WI; addresses there use a neighbouring town's name. The ZIP code covering it is 54428. Its area code is 715.

USPS city name
0 ZIP codes
Overlapping the city
1 more
Population
331
Area code
715

NANPA lists no telephone rate centre for Post Lake itself, so these are the area codes of the nearest one, Elcho (0.0 miles). A town on an area-code boundary can differ from its neighbour.

Post Lake in numbers

About 331 people live in Post Lake, in 171 households. The median household income is $65,438 a year, 16% below the Wisconsin median of $77,485 (US: $80,734). The median owner-occupied home is valued at $310,900 (17% above the Wisconsin median). The median age is 63.5; 28.4% of adults 25 and over hold a bachelor's degree or higher (33.4% across Wisconsin); the average commute takes 26 minutes.

Population331Post Lake331
Households171Post Lake171
Median age63.5Post Lake63.5Wisconsin40.2US 38.9
Median household income$65,438Post Lake$65,438Wisconsin$77,485US $80,734
Median home value$310,900Post Lake$310,900Wisconsin$266,500US $332,700
Bachelor's degree or higher28.4%Post Lake28.4%Wisconsin33.4%US 35.7%
Mean commute25.8 minPost Lake25.8 minWisconsin22.2 minUS 26.4 min
Population density46 / sq miPost Lake46 / sq mi

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

ZIP codes covering Post Lake

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

ZIP codes overlapping Post Lake
ZIP City Type Population Median income Median home
54428 Elcho , WI Standard 975 $49,167 $214,800

Map of Post Lake ZIP codes

54428

The ZIP codes of Post Lake, 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 Post Lake

The nearest larger towns are Mole Lake (533 people, 6.8 mi), Crandon (1,365 people, 13 mi) and Antigo (8,069 people, 20 mi).

Towns near Post Lake
TownPopulationDistance
Antigo 8,069 20.2 mi
Rhinelander 8,316 21.6 mi

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

Cite this page

zipcodes.pro. “Post Lake, WI ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/wi/post-lake

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