First three digits · Minnesota
ZIP Codes Starting with
74 ZIP codes start with 550, sorted at the St Paul, MN (SCF 550) sectional center (USPS labeling list L005, effective October 1, 2026) in Minnesota: 69 residential ZIP codes across 12 counties and 5 PO Box or single-organization codes (Census 2020 ZCTAs and GeoNames postal codes, October 2026).
What do the digits 550 mean?
The first digit, 5, is one of ten national areas (Iowa, Minnesota, Montana, North Dakota, South Dakota and Wisconsin). The first three, 550, route mail to a sectional center: USPS labeling list L005 (effective October 1, 2026) sends letters for 550 to the St Paul, MN (SCF 550) facility. The last two digits pick the delivery area. By residents, the largest town names among the 550 ZIP codes are Lakeville, Cottage Grove, Farmington, Stillwater, Inver Grove Heights and Rosemount.
The same facility sorts 6 prefixes, 328 ZIP codes in all: 540, 546, 550, 551, 559, 566.
Where are the 550 ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All ZIP codes starting with 550
| County | ||||||
|---|---|---|---|---|---|---|
| 55001 | Afton | Washington County | 3,027 | 112 | $134k | $674k |
| 55002 | Almelund | Chisago County | PO Box or unique | – | – | – |
| 55003 | Bayport | Washington County | 3,905 | 1,883 | $126k | $377k |
| 55005 | Bethel | Anoka County | 4,376 | 231 | $109k | $341k |
| 55006 | Braham | Kanabec County | 3,694 | 48 | $69k | $223k |
| 55007 | Brook Park | Kanabec County | 2,201 | 19 | $68k | $234k |
| 55008 | Cambridge | Isanti County | 16,729 | 167 | $85k | $291k |
| 55009 | Cannon Falls | Goodhue County | 8,127 | 66 | $91k | $331k |
| 55010 | Castle Rock | Dakota County | PO Box or unique | – | – | – |
| 55011 | Cedar | Anoka County | 11,482 | 250 | $121k | $405k |
| 55012 | Center City | Chisago County | 2,087 | 88 | $102k | $387k |
| 55013 | Chisago City | Chisago County | 7,015 | 254 | $109k | $397k |
| 55014 | Circle Pines | Anoka County | 29,047 | 1,433 | $104k | $337k |
| 55016 | Cottage Grove | Washington County | 40,695 | 1,352 | $121k | $378k |
| 55017 | Dalbo | Isanti County | 799 | 31 | $62k | $326k |
| 55018 | Dennison | Goodhue County | 969 | 22 | $84k | $352k |
| 55019 | Dundas | Rice County | 2,305 | 113 | $117k | $351k |
| 55020 | Elko New Market | Scott County | 4,115 | 173 | $131k | $456k |
| 55021 | Faribault | Rice County | 30,908 | 175 | $69k | $280k |
| 55024 | Farmington | Dakota County | 37,287 | 438 | $127k | $379k |
| 55025 | Forest Lake | Anoka County | 25,891 | 336 | $98k | $405k |
| 55026 | Frontenac | Goodhue County | 470 | 131 | $97k | $288k |
| 55027 | Goodhue | Goodhue County | 2,739 | 23 | $93k | $312k |
| 55029 | Grandy | Isanti County | 31 | 121 | $74k | – |
| 55030 | Grasston | Pine County | 1,711 | 44 | $82k | $196k |
| 55031 | Hampton | Dakota County | 1,881 | 46 | $114k | $410k |
| 55032 | Harris | Chisago County | 3,416 | 50 | $105k | $381k |
| 55033 | Hastings | Dakota County | 29,674 | 206 | $104k | $359k |
| 55036 | Henriette | Pine County | 37 | 132 | $27k | $93k |
| 55037 | Hinckley | Pine County | 5,215 | 17 | $68k | $231k |
| 55038 | Hugo | Washington County | 25,061 | 496 | $131k | $423k |
| 55040 | Isanti | Isanti County | 14,837 | 151 | $91k | $314k |
| 55041 | Lake City | Wabasha County | 7,510 | 52 | $79k | $275k |
| 55042 | Lake Elmo | Washington County | 13,705 | 551 | $154k | $602k |
| 55043 | Lakeland | Washington County | 3,424 | 910 | $103k | $384k |
| 55044 | Lakeville | Dakota County | 64,762 | 992 | $142k | $489k |
| 55045 | Lindstrom | Chisago County | 7,846 | 225 | $109k | $391k |
| 55046 | Lonsdale | Rice County | 6,145 | 138 | $96k | $359k |
| 55047 | Marine On Saint Croix | Washington County | 2,244 | 77 | $107k | $498k |
| 55049 | Medford | Steele County | 2,636 | 57 | $91k | $248k |
| 55051 | Mora | Kanabec County | 9,935 | 46 | $69k | $225k |
| 55052 | Morristown | Rice County | 2,114 | 47 | $83k | $279k |
| 55053 | Nerstrand | Rice County | 995 | 20 | $101k | $354k |
| 55054 | Elko New Market | Scott County | 2,831 | 2,820 | $157k | $433k |
| 55055 | Newport | Washington County | 4,754 | 1,312 | $72k | $378k |
| 55056 | North Branch | Chisago County | 14,753 | 148 | $96k | $331k |
| 55057 | Northfield | Rice County | 25,650 | 206 | $93k | $364k |
| 55060 | Owatonna | Steele County | 29,599 | 145 | $85k | $251k |
| 55063 | Pine City | Pine County | 9,212 | 58 | $75k | $253k |
| 55065 | Randolph | Dakota County | 1,224 | 37 | $120k | $407k |
| 55066 | Red Wing | Goodhue County | 19,226 | 159 | $74k | $251k |
| 55067 | Rock Creek | Pine County | PO Box or unique | – | – | – |
| 55068 | Rosemount | Dakota County | 33,119 | 721 | $128k | $396k |
| 55069 | Rush City | Chisago County | 5,836 | 79 | $75k | $282k |
| 55070 | Saint Francis | Anoka County | 8,441 | 331 | $109k | $329k |
| 55071 | Saint Paul Park | Washington County | 5,719 | 1,144 | $101k | $268k |
| 55072 | Sandstone | Pine County | 4,418 | 13 | $58k | $201k |
| 55073 | Scandia | Washington County | 4,169 | 149 | $129k | $462k |
| 55074 | Shafer | Chisago County | 2,393 | 70 | $107k | $298k |
| 55075 | South Saint Paul | Dakota County | 20,714 | 3,706 | $88k | $282k |
| 55076 | Inver Grove Heights | Dakota County | 21,374 | 2,154 | $94k | $323k |
| 55077 | Inver Grove Heights | Dakota County | 14,503 | 799 | $112k | $541k |
| 55078 | Stacy | Chisago County | PO Box or unique | – | – | – |
| 55079 | Stacy | Chisago County | 8,508 | 134 | $115k | $352k |
| 55080 | Stanchfield | Isanti County | 3,180 | 46 | $102k | $356k |
| 55082 | Stillwater | Washington County | 36,277 | 458 | $115k | $474k |
| 55083 | Stillwater | Washington County | PO Box or unique | – | – | – |
| 55084 | Taylors Falls | Chisago County | 1,975 | 80 | $94k | $319k |
| 55085 | Vermillion | Dakota County | 371 | 403 | $108k | $312k |
| 55087 | Warsaw | Rice County | 327 | 296 | $92k | $265k |
| 55088 | Webster | Rice County | 1,812 | 49 | $133k | $510k |
| 55089 | Welch | Goodhue County | 1,612 | 24 | $109k | $385k |
| 55090 | Willernie | Washington County | 401 | 3,518 | $85k | $331k |
| 55092 | Wyoming | Anoka County | 11,200 | 333 | $95k | $364k |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; GeoNames postal codes (CC BY 4.0) for codes without a residential area.