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> North Dakota > Zip Code 58831
| Zip Code : | 58831 |
| City : | Alexander city, Arnegard city |
| County : | McKenzie County |
| State : | North Dakota (ND) |
| Land Area : | 331.28 sq mi |
| Water Area : | 2.68 sq mi |
| Latitude : | 47.7993536 |
| Longitude : | -103.6585274 |
| Population (2010): | 472 |
| Population Estimate (2012) : | 622 |
| Population Density : | 1.42/sq mi |
| Housing Units (2012) : | 255 |
| Median Household Income (2012) : | $40,417 (North Dakota : $51,641, USA : $53,046) |
| Median Family Income (2012) : | $66,750 (North Dakota : $68,293, USA : $64,585) |
| Median House Price (2012) : | $86,700 (North Dakota : $123,900, USA : $181,400) |