County ZIP codes · Minnesota · FIPS 27021
Cass County, MN ZIP Codes
Cass County, Minnesota has 24 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 23 residential and 1 for PO boxes or a single organization. 13 of the residential ones lie mainly in Cass County and 10 mainly in a neighboring county; 15 cross the county line. Median household income ranges from $57,404 in 56655 (Longville) to $100,300 in 56468 (Nisswa) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Cass 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 $59,922 and $73,128.
They carry 23 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 23 residential ZIP codes in Cass County
13 ZIP codes lie mainly in Cass County; 10 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 56472 | Pequot Lakes | 8,830 | 57 | $81k | $343k | 63% |
| 56633 | Cass Lake | 4,802 | 22 | $68k | $166k | 82% |
| 56474 | Pine River | 4,475 | 19 | $60k | $239k | 72% |
| 56473 | Pillager | 3,518 | 39 | $86k | $295k | 81% |
| 56466 | Motley | 3,284 | 17 | $62k | $237k | 71% |
| 56484 | Walker | 3,252 | 35 | $67k | $311k | 100% |
| 56435 | Backus | 2,801 | 18 | $62k | $257k | 99% |
| 56672 | Remer | 2,052 | 5 | $62k | $274k | 100% |
| 56452 | Hackensack | 1,936 | 20 | $63k | $353k | 100% |
| 56655 | Longville | 1,351 | 14 | $57k | $335k | 100% |
| 56662 | Outing | 624 | 10 | $70k | $429k | 100% |
| 56641 | Federal Dam | 339 | 11 | $40k | $159k | 100% |
| 56626 | Bena | 254 | 3 | $45k | $150k | 100% |
Partly in Cass County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 56468 | Nisswa | 4,520 | 91 | $100k | $466k | 47% |
| 56448 | Fifty Lakes | 476 | 10 | $93k | $434k | 37% |
| 56479 | Staples | 5,021 | 25 | $60k | $192k | 32% |
| 56433 | Akeley | 1,614 | 15 | $59k | $229k | 30% |
| 56636 | Deer River | 4,643 | 11 | $61k | $210k | 28% |
| 55785 | Swatara | 271 | 2 | $57k | $182k | 26% |
| 56477 | Sebeka | 2,594 | 10 | $58k | $186k | 11% |
| 56481 | Verndale | 2,255 | 16 | $73k | $168k | 8% |
| 56401 | Brainerd | 31,841 | 99 | $73k | $262k | 5% |
| 56461 | Laporte | 3,337 | 12 | $78k | $274k | 3% |
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?
16 ZIP codes of Cass County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Cass | Elsewhere |
|---|---|---|
| 56401 | 5% | Crow Wing County95% |
| 56472 | 63% | Crow Wing County37% |
| 56479 | 32% | Todd County36%; Wadena County32% |
| 56633 | 82% | Beltrami County10%; Hubbard County8% |
| 56636 | 28% | Itasca County72% |
| 56468 | 47% | Crow Wing County53% |
| 56474 | 72% | Crow Wing County28% |
| 56473 | 81% | Morrison County19% |
| 56461 | 3% | Hubbard County97% |
| 56466 | 71% | Morrison County18%; Todd County11% |
| 56435 | 99% | |
| 56477 | 11% | Wadena County68%; Otter Tail County21% |
| 56481 | 8% | Wadena County74%; Todd County18% |
| 56433 | 30% | Hubbard County70% |
| 56448 | 37% | Crow Wing County63% |
| 55785 | 26% | Aitkin County74% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
| ZIP | Postal name |
|---|---|
| 56430 | Ah Gwah Ching |
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Cass County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Cass County's ZIP codes use 3 prefixes: 557, 564 and 566.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 557 | Duluth, MN (SCF 556) | 1 | 75 |
| 564 | Saint Cloud, MN (SCF 563) | 16 | 43 |
| 566 | St Paul, MN (SCF 550) | 7 | 53 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.