County ZIP codes · Wisconsin · FIPS 55083
Oconto County, WI ZIP Codes
Oconto County, Wisconsin has 19 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 12 of the residential ones lie mainly in Oconto County and 7 mainly in a neighboring county; 12 cross the county line. Median household income ranges from $50,250 in 54149 (Mountain) to $113,698 in 54171 (Sobieski) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Oconto County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $60,703 and $80,594.
They carry 19 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 19 residential ZIP codes in Oconto County
12 ZIP codes lie mainly in Oconto County; 7 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 54153 | Oconto | 7,551 | 74 | $71k | $175k | 100% |
| 54154 | Oconto Falls | 5,741 | 72 | $60k | $201k | 90% |
| 54171 | Sobieski | 4,024 | 161 | $114k | $349k | 100% |
| 54124 | Gillett | 3,414 | 37 | $61k | $143k | 92% |
| 54174 | Suring | 3,171 | 16 | $70k | $188k | 64% |
| 54139 | Lena | 3,130 | 32 | $78k | $210k | 98% |
| 54101 | Abrams | 2,998 | 60 | $95k | $304k | 100% |
| 54141 | Little Suamico | 2,861 | 112 | $102k | $288k | 100% |
| 54161 | Pound | 2,595 | 21 | $68k | $191k | 52% |
| 54149 | Mountain | 1,210 | 9 | $50k | $208k | 100% |
| 54175 | Townsend | 1,101 | 20 | $88k | $271k | 99% |
| 54138 | Lakewood | 787 | 11 | $67k | $234k | 100% |
Partly in Oconto County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 54137 | Krakow | 1,087 | 43 | $86k | $241k | 41% |
| 54112 | Coleman | 2,716 | 45 | $71k | $186k | 28% |
| 54162 | Pulaski | 9,596 | 86 | $81k | $265k | 16% |
| 54491 | White Lake | 1,607 | 8 | $56k | $168k | 9% |
| 54114 | Crivitz | 5,926 | 25 | $59k | $180k | 8% |
| 54111 | Cecil | 1,951 | 39 | $67k | $248k | 8% |
| 54157 | Peshtigo | 5,951 | 66 | $71k | $165k | 2% |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
13 ZIP codes of Oconto County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Oconto | Elsewhere |
|---|---|---|
| 54162 | 16% | Shawano County 61%; Brown County 22% |
| 54157 | 2% | Marinette County 98% |
| 54114 | 8% | Marinette County 92% |
| 54154 | 90% | Shawano County 10% |
| 54124 | 92% | Menominee County 7% |
| 54174 | 64% | Menominee County 36% |
| 54139 | 98% | Marinette County 2% |
| 54112 | 28% | Marinette County 72% |
| 54161 | 52% | Marinette County 48% |
| 54111 | 8% | Shawano County 92% |
| 54491 | 9% | Langlade County 91% |
| 54175 | 99% | |
| 54137 | 41% | Shawano County 59% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Oconto County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Oconto County's ZIP codes use 2 prefixes: 541 and 544.
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.