Green Lake County, WI ZIP codes
Green Lake County, WI has 6 ZIP codes, in 6 towns: 53946, 54968, 54941, 53926, 53939 and 53947. 3 more cross into it from neighbouring counties: 54971, 54923 and 54960.
The county seat is Green Lake.
- ZIP codes
- 6
- Partly in it
- 3 more
- Towns
- 6
- County seat
- Green Lake
- County FIPS
55047- State
- Wisconsin
- Population
- 19,263
- Median household income
- $68,196
- Land area
- 350 sq mi
Green Lake County ZIP codes by town
- Green Lake (county seat)
- 54941
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.
ZIP codes partly in Green Lake County
These ZIP codes lie mostly in a neighbouring county but each cover a twentieth or more of Green Lake County.
- 54923 Berlin · mostly in Waushara County
- 54960 Neshkoro · mostly in Marquette County
- 54971 Ripon · mostly in Fond du Lac County
Map of Green Lake County ZIP codes
The ZIP codes of Green Lake 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.
Green Lake County in numbers
About 19,263 people live in Green Lake County, in 8,285 households, the 55th most populous of Wisconsin's 72 counties. The median household income is $68,196 a year, 12% below the Wisconsin median of $77,485 (US: $80,734). The median owner-occupied home is valued at $215,400 (19% below the Wisconsin median), and median gross rent is $818 a month. The median age is 45.6; 22.8% of adults 25 and over hold a bachelor's degree or higher (33.4% across Wisconsin); the average commute takes 25 minutes.
| Population | 19,263 |
|---|---|
| Households | 8,285 |
| Median age | 45.6 |
| Median household income | $68,196 |
| Median home value | $215,400 |
| Median gross rent | $818 |
| Bachelor's degree or higher | 22.8% |
| Mean commute | 24.7 min |
| Population density | 55 / 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 Green Lake County
| Town | ZIP codes | Population |
|---|---|---|
| Markesan | 1 | 1,275 |
| Princeton | 1 | 1,166 |
| Green Lake | 1 | 1,076 |
| Kingston | 1 | 271 |
| Marquette | 1 | 232 |
| Dalton | 1 | 227 |
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 Green Lake County.
- Winnebago County (15)
- Fond du Lac County (16)
- Dodge County (20)
- Columbia County (14)
- Waushara County (11)
- Marquette County (7)
Not sure you are in Green Lake County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Green Lake County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
53926 | Dalton , WI | Standard | 1,951 | $62,917 | $226,700 |
53939 | Kingston , WI | Standard | 251 | $70,833 | $147,900 |
53946 | Markesan , WI | Standard | 4,333 | $72,450 | $245,500 |
53947 | Marquette , WI | Standard | 223 | $56,250 | $240,000 |
54941 | Green Lake , WI | Standard | 2,563 | $79,146 | $276,000 |
54968 | Princeton , WI | Standard | 2,762 | $65,758 | $196,600 |
Cite this page
zipcodes.pro. “Green Lake County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/wi/county/green-lake
Underlying data is public domain or openly licensed — sources, vintages and licences.