Zip Code 55604 — Grand Marais, MN
55604 is a ZIP Code associated with Grand Marais, MN, located within Cook. 55604 ranks #1 out of 6 ZIP codes in Cook County by population (and #298 out of 881 in MN). The area supports an estimated population of 3,719 residents across Data Pending housing units, with a population density of 1.8 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (47.962010, -90.557920)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 55604 |
| Primary City | Grand Marais |
| State / Province | MN |
| County | Cook |
| Total Population | 3,719 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 1.8 people/sq mi |
| Timezone | America/Chicago |
How 55604 Compares
| Metric | ZIP 55604 | Cook County | MN State Average |
|---|
| Population | 3,719 | 5,635 (Total) | 5,739,754 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 1.8 /sq mi | -- | -- |
| County Pop Rank | #1 of 6 | -- | -- |
Nearby ZIP Codes
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →