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 — STATE/WI/COUNTY/OCONTO

Oconto County, WI ZIP codes

There are 12 ZIP codes in Oconto County, WI, in 12 towns, from 54101 to 54175. The largest are 54153 (Oconto), 54154 (Oconto Falls) and 54171 (Sobieski).

The county seat is Oconto.

ZIP codes
12
Towns
12
County seat
Oconto
County FIPS
55083
Population
39,589
Median household income
$75,049
Land area
997 sq mi
Metro area
Green Bay

Oconto County ZIP codes by town

Oconto (county seat)
54153

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

Map of Oconto County ZIP codes

The ZIP codes of Oconto County, 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.

Oconto County in numbers

About 39,589 people live in Oconto County, in 16,811 households, the 38th most populous of Wisconsin's 72 counties. The median household income is $75,049 a year, 3% below the Wisconsin median of $77,485 (US: $80,734). The median owner-occupied home is valued at $231,400 (13% below the Wisconsin median), and median gross rent is $791 a month. The median age is 47.5; 18.9% of adults 25 and over hold a bachelor's degree or higher (33.4% across Wisconsin); the average commute takes 28 minutes.

Population39,589Oconto39,589
Households16,811Oconto16,811
Median age47.5Oconto47.5Wisconsin40.2US 38.9
Median household income$75,049Oconto$75,049Wisconsin$77,485US $80,734
Median home value$231,400Oconto$231,400Wisconsin$266,500US $332,700
Median gross rent$791Oconto$791Wisconsin$1,087US $1,413
Bachelor's degree or higher18.9%Oconto18.9%Wisconsin33.4%US 35.7%
Mean commute28.0 minOconto28.0 minWisconsin22.2 minUS 26.4 min
Population density40 / sq miOconto40 / sq mi

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

Largest towns in Oconto County

Largest towns in Oconto County
TownZIP codesPopulation
Oconto 1 4,625
Oconto Falls 1 3,001
Little Suamico 1 2,861
Gillett 1 1,209
Lena 1 483
Suring 1 411
Sobieski 1 382
Pound 1 379
Abrams 1 278
Mountain 1 250
Lakewood 1 182
Townsend 1 37

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Oconto County.

Not sure you are in Oconto County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Oconto County, with figures

ZIP codes in Oconto County
ZIP City Type Population Median income Median home
54101 Abrams , WI Standard 2,998 $94,500 $304,100
54124 Gillett , WI Standard 3,414 $60,703 $143,400
54138 Lakewood , WI Standard 787 $67,000 $234,200
54139 Lena , WI Standard 3,130 $78,013 $209,800
54141 Little Suamico , WI Standard 2,861 $101,553 $288,400
54149 Mountain , WI Standard 1,210 $50,250 $207,500
54153 Oconto , WI Standard 7,551 $70,684 $174,500
54154 Oconto Falls , WI Standard 5,741 $59,767 $200,900
54161 Pound , WI Standard 2,595 $68,415 $190,500
54171 Sobieski , WI Standard 4,024 $113,698 $349,100
54174 Suring , WI Standard 3,171 $69,878 $187,700
54175 Townsend , WI Standard 1,101 $87,614 $270,500

Cite this page

zipcodes.pro. “Oconto County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/wi/county/oconto

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