Zip Code 56641 — Federal Dam, MN
56641 is a ZIP Code associated with Federal Dam, MN, located within Cass. 56641 ranks #12 out of 13 ZIP codes in Cass County by population (and #767 out of 881 in MN). The area supports an estimated population of 339 residents across Data Pending housing units, with a population density of 4.1 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (47.198480, -94.258040)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 56641 |
| Primary City | Federal Dam |
| State / Province | MN |
| County | Cass |
| Total Population | 339 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 4.1 people/sq mi |
| Timezone | America/Chicago |
How 56641 Compares
| Metric | ZIP 56641 | Cass County | MN State Average |
|---|
| Population | 339 | 37,518 (Total) | 5,739,754 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 4.1 /sq mi | -- | -- |
| County Pop Rank | #12 of 13 | -- | -- |
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 →