| City : | Monmouth City |
| County : | Jackson County, Yakima County |
| State : | Iowa (IA) |
| Land Area : | 0.56 sq mi |
| Water Area : | 0.00 sq mi |
| Latitude : | 42.0751030 |
| Longitude : | -90.8821601 |
| Population (2010): | 153 |
| Population Estimate (2012) : | 118 |
| Population Density : | 272.13/sq mi |
| Housing Units (2012) : | 69 |
| Median Household Income (2012) : | $39,844 (Iowa : $51,129, USA : $53,046) |
| Median Family Income (2012) : | $46,250 (Iowa : $64,772, USA : $64,585) |
| Median House Price (2012) : | $60,700 (Iowa : $123,000, USA : $181,400) |
Monmouth City Zip Codes
| 52309 (397) |