First three digits · Wisconsin
ZIP Codes Starting with
56 ZIP codes start with 541, sorted at the Green Bay, WI (SCF 541) sectional center (USPS labeling list L005, effective October 1, 2026) in Wisconsin: 54 residential ZIP codes across 9 counties and 2 PO Box or single-organization codes (Census 2020 ZCTAs and GeoNames postal codes, October 2026).
What do the digits 541 mean?
The first digit, 5, is one of ten national areas (Iowa, Minnesota, Montana, North Dakota, South Dakota and Wisconsin). The first three, 541, route mail to a sectional center: USPS labeling list L005 (effective October 1, 2026) sends letters for 541 to the Green Bay, WI (SCF 541) facility. The last two digits pick the delivery area. By residents, the largest town names among the 541 ZIP codes are De Pere, Kaukauna, Shawano, Marinette, Pulaski and Little Chute.
The same facility sorts 5 prefixes, 231 ZIP codes in all: 541, 542, 543, 544, 545.
Where are the 541 ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All ZIP codes starting with 541
| County | ||||||
|---|---|---|---|---|---|---|
| 54101 | Abrams | Oconto County | 2,998 | 60 | $95k | $304k |
| 54102 | Amberg | Marinette County | 763 | 8 | $42k | $143k |
| 54103 | Armstrong Creek | Forest County | 535 | 7 | $58k | $183k |
| 54104 | Athelstane | Marinette County | 1,027 | 6 | $56k | $171k |
| 54106 | Black Creek | Outagamie County | 4,990 | 57 | $98k | $278k |
| 54107 | Bonduel | Shawano County | 3,713 | 50 | $80k | $211k |
| 54110 | Brillion | Calumet County | 5,591 | 87 | $74k | $224k |
| 54111 | Cecil | Shawano County | 1,951 | 39 | $67k | $248k |
| 54112 | Coleman | Marinette County | 2,716 | 45 | $71k | $186k |
| 54113 | Combined Locks | Outagamie County | 3,622 | 2,030 | $94k | $246k |
| 54114 | Crivitz | Marinette County | 5,926 | 25 | $59k | $180k |
| 54115 | De Pere | Brown County | 50,411 | 407 | $95k | $340k |
| 54119 | Dunbar | Marinette County | 715 | 5 | $54k | $160k |
| 54120 | Fence | Florence County | 213 | 2 | $54k | $168k |
| 54121 | Florence | Florence County | 3,257 | 12 | $59k | $190k |
| 54123 | Forest Junction | Calumet County | 204 | 278 | $59k | – |
| 54124 | Gillett | Oconto County | 3,414 | 37 | $61k | $143k |
| 54125 | Goodman | Marinette County | 430 | 5 | $46k | $100k |
| 54126 | Greenleaf | Brown County | 4,233 | 53 | $99k | $284k |
| 54127 | Green Valley | Shawano County | 37 | 198 | $114k | $147k |
| 54128 | Gresham | Shawano County | 2,082 | 41 | $64k | $153k |
| 54129 | Hilbert | Calumet County | 3,222 | 46 | $67k | $280k |
| 54130 | Kaukauna | Outagamie County | 28,380 | 364 | $89k | $261k |
| 54131 | Freedom | Outagamie County | PO Box or unique | – | – | – |
| 54135 | Keshena | Menominee County | 3,018 | 58 | $66k | $137k |
| 54136 | Kimberly | Outagamie County | 7,019 | 3,437 | $70k | $221k |
| 54137 | Krakow | Shawano County | 1,087 | 43 | $86k | $241k |
| 54138 | Lakewood | Oconto County | 787 | 11 | $67k | $234k |
| 54139 | Lena | Oconto County | 3,130 | 32 | $78k | $210k |
| 54140 | Little Chute | Outagamie County | 8,035 | 2,563 | $83k | $227k |
| 54141 | Little Suamico | Oconto County | 2,861 | 112 | $102k | $288k |
| 54143 | Marinette | Marinette County | 15,119 | 228 | $65k | $143k |
| 54149 | Mountain | Oconto County | 1,210 | 9 | $50k | $208k |
| 54150 | Neopit | Menominee County | 1,024 | 21 | $55k | $67k |
| 54151 | Niagara | Marinette County | 3,411 | 26 | $70k | $140k |
| 54152 | Nichols | Outagamie County | 253 | 415 | $57k | $158k |
| 54153 | Oconto | Oconto County | 7,551 | 74 | $71k | $175k |
| 54154 | Oconto Falls | Oconto County | 5,741 | 72 | $60k | $201k |
| 54155 | Oneida | Brown County | 7,418 | 235 | $100k | $390k |
| 54156 | Pembine | Marinette County | 1,502 | 15 | $50k | $129k |
| 54157 | Peshtigo | Marinette County | 5,951 | 66 | $71k | $165k |
| 54159 | Porterfield | Marinette County | 1,381 | 19 | $69k | $186k |
| 54160 | Potter | Calumet County | 221 | 438 | $69k | $177k |
| 54161 | Pound | Oconto County | 2,595 | 21 | $68k | $191k |
| 54162 | Pulaski | Shawano County | 9,596 | 86 | $81k | $265k |
| 54165 | Seymour | Outagamie County | 7,786 | 78 | $87k | $247k |
| 54166 | Shawano | Shawano County | 16,940 | 116 | $63k | $191k |
| 54169 | Sherwood | Calumet County | 3,252 | 873 | $110k | $351k |
| 54170 | Shiocton | Outagamie County | 3,898 | 32 | $79k | $232k |
| 54171 | Sobieski | Oconto County | 4,024 | 161 | $114k | $349k |
| 54173 | Suamico | Brown County | 3,403 | 239 | $108k | $341k |
| 54174 | Suring | Oconto County | 3,171 | 16 | $70k | $188k |
| 54175 | Townsend | Oconto County | 1,101 | 20 | $88k | $271k |
| 54177 | Wausaukee | Marinette County | 2,913 | 17 | $63k | $167k |
| 54180 | Wrightstown | Brown County | 3,378 | 571 | $94k | $286k |
| 54182 | Zachow | Shawano County | PO Box or unique | – | – | – |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; GeoNames postal codes (CC BY 4.0) for codes without a residential area.