First three digits · Wisconsin
ZIP Codes Starting with
66 ZIP codes start with 549, sorted at the Milwaukee, WI (SCF 530) sectional center (USPS labeling list L005, effective October 1, 2026) in Wisconsin: 56 residential ZIP codes across 10 counties and 10 PO Box or single-organization codes (Census 2020 ZCTAs and GeoNames postal codes, October 2026).
What do the digits 549 mean?
The first digit, 5, is one of ten national areas (Iowa, Minnesota, Montana, North Dakota, South Dakota and Wisconsin). The first three, 549, route mail to a sectional center: USPS labeling list L005 (effective October 1, 2026) sends letters for 549 to the Milwaukee, WI (SCF 530) facility. The last two digits pick the delivery area. By residents, the largest town names among the 549 ZIP codes are Appleton, Oshkosh, Fond Du Lac, Neenah, Menasha and Waupaca.
The same facility sorts 5 prefixes, 265 ZIP codes in all: 530, 531, 532, 534, 549.
Where are the 549 ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All ZIP codes starting with 549
| County | ||||||
|---|---|---|---|---|---|---|
| 54901 | Oshkosh | Winnebago County | 37,294 | 2,241 | $62k | $178k |
| 54902 | Oshkosh | Winnebago County | 22,243 | 635 | $66k | $171k |
| 54903 | Oshkosh | Winnebago County | PO Box or unique | – | – | – |
| 54904 | Oshkosh | Winnebago County | 22,273 | 286 | $93k | $281k |
| 54906 | Oshkosh | Winnebago County | PO Box or unique | – | – | – |
| 54909 | Almond | Portage County | 1,982 | 21 | $80k | $196k |
| 54911 | Appleton | Outagamie County | 25,308 | 3,004 | $67k | $216k |
| 54912 | Appleton | Outagamie County | PO Box or unique | – | – | – |
| 54913 | Appleton | Outagamie County | 25,147 | 392 | $105k | $393k |
| 54914 | Appleton | Outagamie County | 31,849 | 1,657 | $80k | $237k |
| 54915 | Appleton | Calumet County | 44,367 | 2,950 | $87k | $270k |
| 54919 | Appleton | Outagamie County | PO Box or unique | – | – | – |
| 54921 | Bancroft | Portage County | 1,482 | 17 | $76k | $176k |
| 54922 | Bear Creek | Outagamie County | 1,101 | 24 | $76k | $218k |
| 54923 | Berlin | Waushara County | 8,793 | 65 | $66k | $189k |
| 54926 | Big Falls | Waupaca County | 125 | 396 | – | $76k |
| 54927 | Butte Des Morts | Winnebago County | 540 | 2,477 | $129k | $244k |
| 54928 | Caroline | Shawano County | 524 | 47 | $73k | $236k |
| 54929 | Clintonville | Waupaca County | 8,776 | 72 | $65k | $167k |
| 54930 | Coloma | Waushara County | 1,840 | 20 | $78k | $194k |
| 54931 | Dale | Outagamie County | 364 | 727 | – | $198k |
| 54932 | Eldorado | Fond du Lac County | 1,218 | 43 | $110k | $271k |
| 54933 | Embarrass | Waupaca County | 106 | 149 | $63k | $98k |
| 54934 | Eureka | Winnebago County | PO Box or unique | – | – | – |
| 54935 | Fond Du Lac | Fond du Lac County | 41,613 | 2,669 | $63k | $180k |
| 54936 | Fond Du Lac | Fond du Lac County | PO Box or unique | – | – | – |
| 54937 | Fond Du Lac | Fond du Lac County | 21,687 | 181 | $82k | $272k |
| 54940 | Fremont | Waushara County | 4,533 | 50 | $91k | $307k |
| 54941 | Green Lake | Green Lake County | 2,563 | 79 | $79k | $276k |
| 54942 | Greenville | Outagamie County | 11,020 | 690 | $120k | $356k |
| 54943 | Hancock | Waushara County | 2,250 | 19 | $63k | $207k |
| 54944 | Hortonville | Outagamie County | 9,312 | 135 | $101k | $346k |
| 54945 | Iola | Waupaca County | 3,470 | 32 | $70k | $217k |
| 54946 | King | Waupaca County | 401 | 5,729 | – | – |
| 54947 | Larsen | Winnebago County | 2,323 | 50 | $91k | $280k |
| 54948 | Leopolis | Shawano County | 225 | 22 | $63k | $158k |
| 54949 | Manawa | Waupaca County | 3,565 | 54 | $91k | $217k |
| 54950 | Marion | Waupaca County | 2,802 | 34 | $67k | $162k |
| 54952 | Menasha | Calumet County | 27,312 | 973 | $69k | $213k |
| 54956 | Neenah | Winnebago County | 46,567 | 755 | $86k | $257k |
| 54957 | Neenah | Winnebago County | PO Box or unique | – | – | – |
| 54960 | Neshkoro | Marquette County | 2,997 | 29 | $67k | $234k |
| 54961 | New London | Waupaca County | 14,485 | 117 | $72k | $221k |
| 54962 | Ogdensburg | Waupaca County | 1,025 | 22 | $84k | $206k |
| 54963 | Omro | Winnebago County | 7,271 | 96 | $86k | $238k |
| 54964 | Pickett | Winnebago County | 974 | 28 | $83k | $268k |
| 54965 | Pine River | Waushara County | 1,212 | 20 | $61k | $198k |
| 54966 | Plainfield | Waushara County | 2,202 | 27 | $67k | $156k |
| 54967 | Poy Sippi | Waushara County | 497 | 221 | $52k | $188k |
| 54968 | Princeton | Green Lake County | 2,762 | 45 | $66k | $197k |
| 54969 | Readfield | Waupaca County | PO Box or unique | – | – | – |
| 54970 | Redgranite | Waushara County | 3,845 | 84 | $64k | $160k |
| 54971 | Ripon | Fond du Lac County | 10,907 | 98 | $67k | $193k |
| 54974 | Rosendale | Fond du Lac County | 1,415 | 54 | $97k | $264k |
| 54976 | Saxeville | Waushara County | PO Box or unique | – | – | – |
| 54977 | Scandinavia | Waupaca County | 1,592 | 42 | $81k | $249k |
| 54978 | Tilleda | Shawano County | 74 | 20 | $120k | – |
| 54979 | Van Dyne | Fond du Lac County | 2,037 | 77 | $110k | $295k |
| 54980 | Waukau | Winnebago County | 218 | 625 | $32k | $190k |
| 54981 | Waupaca | Waupaca County | 14,870 | 113 | $73k | $219k |
| 54982 | Wautoma | Waushara County | 6,958 | 54 | $64k | $203k |
| 54983 | Weyauwega | Waupaca County | 4,144 | 50 | $71k | $230k |
| 54984 | Wild Rose | Waushara County | 3,394 | 43 | $64k | $216k |
| 54985 | Winnebago | Winnebago County | 249 | 2,767 | – | – |
| 54986 | Winneconne | Winnebago County | 5,394 | 186 | $93k | $301k |
| 54990 | Iola | Waupaca 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.