County ZIP codes · Minnesota · FIPS 27111
Otter Tail County, MN ZIP Codes
Otter Tail County, Minnesota has 34 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 33 residential and 1 for PO boxes or a single organization. 20 of the residential ones lie mainly in Otter Tail County and 13 mainly in a neighboring county; 17 cross the county line. Median household income ranges from $56,979 in 56446 (Eagle Bend) to $100,845 in 56514 (Barnesville) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Otter Tail 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 $68,770 and $84,750.
They carry 33 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 33 residential ZIP codes in Otter Tail County
20 ZIP codes lie mainly in Otter Tail County; 13 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 56537 | Fergus Falls | 19,856 | 70 | $66k | $247k | 100% |
| 56573 | Perham | 7,221 | 52 | $69k | $287k | 100% |
| 56572 | Pelican Rapids | 5,827 | 34 | $80k | $299k | 91% |
| 56567 | New York Mills | 3,367 | 23 | $73k | $215k | 100% |
| 56515 | Battle Lake | 2,723 | 28 | $74k | $399k | 100% |
| 56361 | Parkers Prairie | 2,592 | 16 | $71k | $248k | 83% |
| 56551 | Henning | 2,387 | 23 | $64k | $238k | 100% |
| 56586 | Underwood | 1,873 | 25 | $80k | $310k | 100% |
| 56571 | Ottertail | 1,745 | 38 | $86k | $363k | 100% |
| 56528 | Dent | 1,623 | 26 | $80k | $319k | 100% |
| 56587 | Vergas | 1,339 | 25 | $88k | $368k | 100% |
| 56534 | Erhard | 1,201 | 19 | $71k | $238k | 100% |
| 56324 | Dalton | 1,028 | 18 | $83k | $253k | 98% |
| 56527 | Deer Creek | 881 | 16 | $64k | $217k | 100% |
| 56453 | Hewitt | 841 | 16 | $71k | $136k | 59% |
| 56576 | Richville | 820 | 20 | $64k | $386k | 100% |
| 56524 | Clitherall | 694 | 16 | $96k | $347k | 100% |
| 56518 | Bluffton | 494 | 27 | $71k | $160k | 100% |
| 56588 | Vining | 483 | 10 | $74k | $344k | 100% |
| 56533 | Elizabeth | 286 | 21 | $67k | $163k | 100% |
Partly in Otter Tail County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 56482 | Wadena | 7,619 | 56 | $64k | $170k | 44% |
| 56309 | Ashby | 1,296 | 23 | $85k | $290k | 38% |
| 56579 | Rothsay | 1,050 | 5 | $90k | $236k | 27% |
| 56477 | Sebeka | 2,594 | 10 | $58k | $186k | 21% |
| 56544 | Frazee | 5,726 | 29 | $73k | $245k | 21% |
| 56522 | Campbell | 604 | 4 | $82k | $163k | 12% |
| 56446 | Eagle Bend | 1,418 | 15 | $57k | $152k | 12% |
| 56437 | Bertha | 1,410 | 21 | $60k | $123k | 11% |
| 56326 | Evansville | 1,716 | 18 | $86k | $244k | 9% |
| 56501 | Detroit Lakes | 18,004 | 96 | $70k | $315k | 6% |
| 56464 | Menahga | 5,053 | 20 | $71k | $208k | 4% |
| 56315 | Brandon | 1,803 | 26 | $90k | $270k | 3% |
| 56514 | Barnesville | 3,994 | 19 | $101k | $265k | 2% |
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?
17 ZIP codes of Otter Tail County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Otter Tail | Elsewhere |
|---|---|---|
| 56501 | 6% | Becker County 94% |
| 56482 | 44% | Wadena County 54%; Todd County 1% |
| 56572 | 91% | Clay County 5%; Becker County 4% |
| 56544 | 21% | Becker County 79% |
| 56464 | 4% | Wadena County 47%; Becker County 34%; Hubbard County 14% |
| 56514 | 2% | Clay County 62%; Wilkin County 36% |
| 56477 | 21% | Wadena County 68%; Cass County 11% |
| 56361 | 83% | Douglas County 17% |
| 56315 | 3% | Douglas County 97% |
| 56326 | 9% | Douglas County 88%; Grant County 2% |
| 56446 | 12% | Todd County 83%; Douglas County 5% |
| 56437 | 11% | Todd County 89% |
| 56309 | 38% | Grant County 56%; Douglas County 6% |
| 56579 | 27% | Wilkin County 73% |
| 56324 | 98% | Grant County 2% |
| 56453 | 59% | Todd County 41% |
| 56522 | 12% | Wilkin County 88% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
| ZIP | Postal name |
|---|---|
| 56538 | Fergus Falls |
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Otter Tail County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Otter Tail County's ZIP codes use 3 prefixes: 563, 564 and 565.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 563 | Saint Cloud, MN (SCF 563) | 5 | 83 |
| 564 | Saint Cloud, MN (SCF 563) | 6 | 43 |
| 565 | Fargo, ND (SCF 580) | 23 | 76 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.