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> North Dakota > Zip Code 58531
| Zip Code : | 58531 |
| City : | Coleharbor city, Riverdale city |
| County : | McLean County |
| State : | North Dakota (ND) |
| Land Area : | 114.81 sq mi |
| Water Area : | 31.12 sq mi |
| Latitude : | 47.5672585 |
| Longitude : | -101.1956314 |
| Population (2010): | 307 |
| Population Estimate (2012) : | 369 |
| Population Density : | 2.67/sq mi |
| Housing Units (2012) : | 279 |
| Median Household Income (2012) : | $63,750 (North Dakota : $51,641, USA : $53,046) |
| Median Family Income (2012) : | $69,875 (North Dakota : $68,293, USA : $64,585) |
| Median House Price (2012) : | $83,800 (North Dakota : $123,900, USA : $181,400) |