First three digits · Minnesota
ZIP Codes Starting with
53 ZIP codes start with 566, sorted at the St Paul, MN (SCF 550) sectional center (USPS labeling list L005, effective October 1, 2026) in Minnesota: 48 residential ZIP codes across 9 counties and 5 PO Box or single-organization codes (Census 2020 ZCTAs and GeoNames postal codes, October 2026).
What do the digits 566 mean?
The first digit, 5, is one of ten national areas (Iowa, Minnesota, Montana, North Dakota, South Dakota and Wisconsin). The first three, 566, route mail to a sectional center: USPS labeling list L005 (effective October 1, 2026) sends letters for 566 to the St Paul, MN (SCF 550) facility. The last two digits pick the delivery area. By residents, the largest town names among the 566 ZIP codes are Bemidji, International Falls, Cass Lake, Deer River, Bagley and Redlake.
The same facility sorts 6 prefixes, 328 ZIP codes in all: 540, 546, 550, 551, 559, 566.
Where are the 566 ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All ZIP codes starting with 566
| County | ||||||
|---|---|---|---|---|---|---|
| 56601 | Bemidji | Beltrami County | 34,784 | 94 | $72k | $261k |
| 56619 | Bemidji | Beltrami County | PO Box or unique | – | – | – |
| 56621 | Bagley | Clearwater County | 4,336 | 13 | $64k | $185k |
| 56623 | Baudette | Lake of the Woods County | 2,733 | 6 | $88k | $233k |
| 56626 | Bena | Cass County | 254 | 3 | $45k | $150k |
| 56627 | Big Falls | Koochiching County | 192 | 0 | $37k | $69k |
| 56628 | Bigfork | Itasca County | 1,675 | 5 | $61k | $245k |
| 56629 | Birchdale | Koochiching County | 224 | 1 | $91k | $212k |
| 56630 | Blackduck | Beltrami County | 2,180 | 7 | $50k | $177k |
| 56631 | Bowstring | Itasca County | PO Box or unique | – | – | – |
| 56633 | Cass Lake | Cass County | 4,802 | 22 | $68k | $166k |
| 56634 | Clearbrook | Clearwater County | 1,801 | 15 | $65k | $216k |
| 56636 | Deer River | Itasca County | 4,643 | 11 | $61k | $210k |
| 56637 | Talmoon | Itasca County | 153 | 6 | $59k | $236k |
| 56639 | Effie | Itasca County | 359 | 1 | $31k | $220k |
| 56641 | Federal Dam | Cass County | 339 | 11 | $40k | $159k |
| 56644 | Gonvick | Clearwater County | 830 | 8 | $56k | $218k |
| 56646 | Gully | Polk County | 266 | 4 | $49k | $205k |
| 56647 | Hines | Beltrami County | 822 | 11 | $79k | $246k |
| 56649 | International Falls | Koochiching County | 8,825 | 31 | $65k | $154k |
| 56650 | Kelliher | Beltrami County | 831 | 5 | $72k | $186k |
| 56651 | Lengby | Mahnomen County | 667 | 9 | $81k | $191k |
| 56652 | Leonard | Clearwater County | 437 | 7 | $65k | $234k |
| 56653 | Littlefork | Koochiching County | 1,239 | 3 | $75k | $169k |
| 56654 | Loman | Koochiching County | 109 | 1 | $51k | $254k |
| 56655 | Longville | Cass County | 1,351 | 14 | $57k | $335k |
| 56657 | Marcell | Itasca County | 251 | 5 | $73k | $421k |
| 56658 | Margie | Koochiching County | no residents | 0 | – | – |
| 56659 | Max | Itasca County | 122 | 4 | $99k | $364k |
| 56660 | Mizpah | Koochiching County | 193 | 1 | $65k | $152k |
| 56661 | Northome | Koochiching County | 895 | 2 | $66k | $194k |
| 56662 | Outing | Cass County | 624 | 10 | $70k | $429k |
| 56663 | Pennington | Beltrami County | 282 | 7 | $50k | – |
| 56666 | Ponemah | Beltrami County | 816 | 19 | – | $161k |
| 56667 | Puposky | Beltrami County | 770 | 8 | $87k | $252k |
| 56668 | Ranier | Koochiching County | 217 | 1,069 | $116k | $184k |
| 56669 | Kabetogama | Koochiching County | 264 | 1 | $65k | $272k |
| 56670 | Redby | Beltrami County | 1,477 | 52 | $57k | $108k |
| 56671 | Redlake | Clearwater County | 2,961 | 9 | $49k | $64k |
| 56672 | Remer | Cass County | 2,052 | 5 | $62k | $274k |
| 56673 | Roosevelt | Lake of the Woods County | 642 | 3 | $69k | $124k |
| 56676 | Shevlin | Clearwater County | 1,780 | 8 | $74k | $210k |
| 56678 | Solway | Beltrami County | 1,730 | 14 | $73k | $203k |
| 56679 | South International Falls | Koochiching County | PO Box or unique | – | – | – |
| 56680 | Spring Lake | Itasca County | 137 | 6 | $51k | $245k |
| 56681 | Squaw Lake | Itasca County | 267 | 2 | $51k | $147k |
| 56682 | Swift | Roseau County | PO Box or unique | – | – | – |
| 56683 | Tenstrike | Beltrami County | 677 | 12 | $80k | $303k |
| 56684 | Trail | Polk County | 280 | 2 | $74k | $139k |
| 56685 | Waskish | Beltrami County | 91 | 1 | – | $213k |
| 56686 | Williams | Lake of the Woods County | 905 | 5 | $80k | $138k |
| 56687 | Wilton | Beltrami County | PO Box or unique | – | – | – |
| 56688 | Wirt | Itasca County | 94 | 1 | $71k | $188k |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; GeoNames postal codes (CC BY 4.0) for codes without a residential area.