| ZIP Codes: | 52 ZIP Codes (41 Standard, 11 PO Box, 0 Unique) [See All] |
| Area Code: | 218 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:12:39 PM |
| Population: | 198,946 [See All] |
| FIPS: | 27137 |
| CBSA: | Duluth, MN-WI |
| Land Area: | 7,566 sq mi |
| Water Area: | 589 sq mi |
| Coordinates: | 47.3130, -92.3930 |
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198,946 residents live across 52 ZIPs covering 7,566 sq mi, served by 38 distinct USPS-recognized cities.
Population moved from 199,399 to 198,811 from 2014 to 2024 — a -0.3% change. 18 ZIPs gained residents, 27 lost.
The county's wealthiest ZIP 55804 (Duluth, $111,228 median) and poorest ZIP 55806 (Duluth, $42,833) are 13.5 miles apart — a 2.6× income gap across local geography.
Median home values vary 5.3× across this county — from $93,300 in 55750 (Hoyt Lakes) to $494,400 in 55802 (Duluth).
Density varies 6832× across the county — from 1 people/sq mi in 55771 (Orr) to 7,172 in 55805 (Duluth).
Educational attainment ranges from 13.4% bachelor's+ in 55736 (Floodwood) to 59.7% in 55812 (Duluth) — the breadth of educational profiles across the area.
Within Minnesota, this is the #6 most populous of 93 counties and ranks #66 for median household income .
Weighted by population, the typical household earns about $72,362 across the county — reflecting what a typical resident sees, not a simple ZIP average.
33.8% of adults age 25+ hold a bachelor's degree or higher (46,661 of 137,992 reporting). The most-educated ZIPs cluster around Duluth.
41 Standard delivery, 11 PO Box only, 0 single-entity Unique ZIPs serve this county.
A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 55811 | Duluth | Standard | 28,118 | $79,804 | 64.3 | 5.2% |
| 55803 | Duluth | Standard | 17,662 | $105,888 | 392.8 | 4.2% |
| 55746 | Hibbing | Standard | 16,730 | $55,823 | 322.3 | -2.4% |
| 55804 | Duluth | Standard | 15,922 | $111,228 | 95.7 | 8.2% |
| 55812 | Duluth | Standard | 10,859 | $65,505 | 2.0 | -5.4% |
| 55805 | Duluth | Standard | 10,602 | $43,100 | 1.5 | 6.7% |
| 55807 | Duluth | Standard | 9,763 | $62,067 | 6.7 | -4.7% |
| 55792 | Virginia | Standard | 9,663 | $53,750 | 104.6 | -3.9% |
| 55806 | Duluth | Standard | 9,356 | $42,833 | 3.6 | -1.5% |
| 55810 | Duluth | Standard | 8,285 | $84,719 | 48.0 | -5.7% |
| 55734 | Eveleth | Standard | 6,265 | $62,703 | 89.2 | 0.5% |
| 55808 | Duluth | Standard | 5,691 | $62,031 | 13.8 | -2.0% |
| 55719 | Chisholm | Standard | 5,613 | $53,647 | 76.9 | -5.3% |
| 55731 | Ely | Standard | 5,361 | $62,008 | 1,414.5 | -9.7% |
| 55779 | Saginaw | Standard | 3,905 | $93,792 | 137.6 | -2.1% |
| 55705 | Aurora | Standard | 3,211 | $56,208 | 92.1 | -1.5% |
| 55768 | Mountain Iron | Standard | 2,964 | $86,075 | 88.8 | 3.0% |
| 55741 | Gilbert | Standard | 2,947 | $69,545 | 59.3 | -7.5% |
| 55802 | Duluth | Standard | 2,399 | $51,544 | 2.4 | 10.1% |
| 55750 | Hoyt Lakes | Standard | 2,068 | $65,833 | 136.7 | 2.1% |
| 55723 | Cook | Standard | 1,927 | $64,526 | 403.1 | -22.1% |
| 55790 | Tower | Standard | 1,847 | $77,232 | 203.1 | -1.2% |
| 55706 | Babbitt | Standard | 1,703 | $56,750 | 124.0 | 3.2% |
| 55771 | Orr | Standard | 1,484 | $67,667 | 1,413.6 | -19.3% |
| 55732 | Embarrass | Standard | 1,453 | $64,750 | 193.0 | 18.5% |
| 55751 | Iron | Standard | 1,388 | $75,200 | 60.7 | -3.5% |
| 55710 | Britt | Standard | 1,362 | $86,477 | 91.7 | 27.4% |
| 55736 | Floodwood | Standard | 1,344 | $65,179 | 303.3 | -11.8% |
| 55713 | Buhl | PO Box | 1,048 | $59,036 | 18.8 | -7.0% |
| 55708 | Biwabik | PO Box | 929 | $66,389 | 10.5 | -13.9% |
| 55703 | Angora | Standard | 906 | $72,102 | 134.8 | 15.3% |
| 55781 | Side Lake | Standard | 821 | $101,406 | 91.5 | 34.4% |
| 55765 | Meadowlands | Standard | 803 | $75,272 | 194.5 | 6.8% |
| 55724 | Cotton | Standard | 707 | $75,313 | 252.2 | -15.0% |
| 55738 | Forbes | Standard | 599 | $82,969 | 116.5 | 26.1% |
| 55711 | Brookston | Standard | 540 | $61,250 | 80.5 | -13.6% |
| 55763 | Makinen | Standard | 495 | $80,750 | 174.3 | -24.1% |
| 55782 | Soudan | PO Box | 420 | $56,420 | 0.8 | -14.5% |
| 55702 | Alborn | Standard | 412 | $78,125 | 70.2 | -18.1% |
| 55602 | Brimson | Standard | 346 | $73,750 | 266.2 | 119.0% |
| 55814 | Duluth | PO Box | 319 | — | 0.0 | -52.5% |
| 55717 | Canyon | Standard | 287 | $97,222 | 83.1 | 15.7% |
| 55796 | Winton | Standard | 135 | $52,344 | 0.1 | — |
| 55758 | Kinney | Standard | 121 | $57,386 | 4.3 | -20.4% |
| 55725 | Crane Lake | Standard | 89 | $72,917 | 122.3 | 11.3% |
| 55772 | Nett Lake | PO Box | 77 | — | 0.0 | -31.9% |
| 55777 | Virginia | PO Box | — | — | 0.0 | — |
| 55766 | Melrude | PO Box | — | — | 0.0 | — |
| 55815 | Duluth | PO Box | — | — | 0.0 | — |
| 55816 | Duluth | PO Box | — | — | 0.0 | — |
| 55801 | Duluth | PO Box | — | — | 0.0 | — |
| 55791 | Twig | PO Box | — | — | 0.0 | — |