County ZIP codes · Minnesota · FIPS 27061
Itasca County, MN ZIP Codes
Itasca County, Minnesota has 33 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 30 residential and 3 for PO boxes or a single organization. 23 of the residential ones lie mainly in Itasca County and 7 mainly in a neighboring county; 10 cross the county line. Median household income ranges from $50,333 in 56630 (Blackduck) to $86,429 in 55721 (Cohasset) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Itasca 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 $53,810 and $66,092.
They carry 30 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 30 residential ZIP codes in Itasca County
23 ZIP codes lie mainly in Itasca County; 7 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 55744 | Grand Rapids | 20,295 | 85 | $71k | $241k | 100% |
| 56636 | Deer River | 4,643 | 11 | $61k | $210k | 72% |
| 55709 | Bovey | 4,628 | 21 | $76k | $226k | 100% |
| 55721 | Cohasset | 4,044 | 43 | $86k | $302k | 100% |
| 55769 | Nashwauk | 2,219 | 13 | $66k | $149k | 100% |
| 56628 | Bigfork | 1,675 | 5 | $61k | $245k | 100% |
| 55775 | Pengilly | 1,309 | 21 | $90k | $234k | 100% |
| 55753 | Keewatin | 1,215 | 1,381 | $54k | $87k | 100% |
| 55722 | Coleraine | 963 | 787 | $69k | $165k | 100% |
| 55781 | Side Lake | 821 | 10 | $101k | $393k | 56% |
| 55793 | Warba | 666 | 8 | $70k | $200k | 100% |
| 55764 | Marble | 541 | 146 | $64k | $102k | 100% |
| 56639 | Effie | 359 | 1 | $31k | $220k | 52% |
| 55716 | Calumet | 279 | 220 | $43k | $111k | 100% |
| 56681 | Squaw Lake | 267 | 2 | $51k | $147k | 100% |
| 55742 | Goodland | 259 | 7 | $64k | $222k | 100% |
| 56657 | Marcell | 251 | 5 | $73k | $421k | 100% |
| 56637 | Talmoon | 153 | 6 | $59k | $236k | 100% |
| 55784 | Swan River | 149 | 6 | $59k | $225k | 100% |
| 56680 | Spring Lake | 137 | 6 | $51k | $245k | 100% |
| 56659 | Max | 122 | 4 | $99k | $364k | 100% |
| 55786 | Taconite | 118 | 47 | $62k | $127k | 100% |
| 56688 | Wirt | 94 | 1 | $71k | $188k | 100% |
Partly in Itasca County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 56661 | Northome | 895 | 2 | $66k | $194k | 43% |
| 55748 | Hill City | 1,374 | 9 | $54k | $201k | 36% |
| 56630 | Blackduck | 2,180 | 7 | $50k | $177k | 29% |
| 55723 | Cook | 1,927 | 5 | $65k | $190k | 28% |
| 55746 | Hibbing | 16,730 | 48 | $56k | $135k | 7% |
| 55736 | Floodwood | 1,344 | 4 | $65k | $165k | 7% |
| 55752 | Jacobson | 446 | 3 | $73k | $202k | 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?
10 ZIP codes of Itasca County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Itasca | Elsewhere |
|---|---|---|
| 55746 | 7% | St. Louis County 93% |
| 56636 | 72% | Cass County 28% |
| 56630 | 29% | Beltrami County 71% |
| 55723 | 28% | St. Louis County 72% |
| 55748 | 36% | Aitkin County 64% |
| 55736 | 7% | St. Louis County 93% |
| 56661 | 43% | Koochiching County 51%; Beltrami County 7% |
| 55781 | 56% | St. Louis County 44% |
| 55752 | 2% | Aitkin County 98% |
| 56639 | 52% | Koochiching County 48% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Itasca County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Itasca County's ZIP codes use 2 prefixes: 557 and 566.
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.