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> North Dakota > Zip Code 58554
| Zip Code : | 58554 |
| City : | Harmon, Mandan city |
| County : | Morton County, Oliver County |
| State : | North Dakota (ND) |
| Land Area : | 614.57 sq mi |
| Water Area : | 16.49 sq mi |
| Latitude : | 46.7427229 |
| Longitude : | -100.9353004 |
| Population (2010): | 22,884 |
| Population Estimate (2012) : | 22,888 |
| Population Density : | 37.24/sq mi |
| Housing Units (2012) : | 9,792 |
| Median Household Income (2012) : | $60,171 (North Dakota : $51,641, USA : $53,046) |
| Median Family Income (2012) : | $67,971 (North Dakota : $68,293, USA : $64,585) |
| Median House Price (2012) : | $143,000 (North Dakota : $123,900, USA : $181,400) |