| County : | Hamilton County |
| State : | Iowa (IA) |
| Land Area : | 576.75 sq mi |
| Water Area : | 0.76 sq mi |
| Latitude : | 42.3907681 |
| Longitude : | -93.7091980 |
| Population (2010): | 15,673 |
| Population Estimate (2012) : | 15,614 |
| Population Density : | 27.17/sq mi |
| Housing Units (2012) : | 7,219 |
| Median Household Income (2012) : | $45,691 (Iowa : $51,129, USA : $53,046) |
| Median Family Income (2012) : | $58,258 (Iowa : $64,772, USA : $64,585) |
| Median House Price (2012) : | $90,000 (Iowa : $123,000, USA : $181,400) |
Hamilton County Cities / Towns
| Blairsburg City (215) | Ellsworth City (531) | Jewell Junction City (1,215) |
| Kamrar City (199) | Randall City (173) | Stanhope City (422) |
| Stratford City (743) | Webster City (8,070) | Williams City (344) |
Hamilton County Zip Codes
| 50034 (490) | 50075 (862) | 50130 (1,648) |
| 50132 (367) | 50230 (1,083) | 50231 (173) |
| 50246 (735) | 50248 (4,420) | 50249 (1,332) |
| 50271 (628) | 50532 (873) | 50595 (9,165) |
| 50599 (380) |