the resident population of the United States more»
| City: | Hartwick |
| State: | Iowa |
| Area Code: | 319 |
| Latitude: | 41.797580 |
| Longitude: | -92.337650 |
| Time Zone: | Eastern GMT -6 |
| City Alias(es): | |
| Population: | 225 |
| 2000 Population: | 232 |
| White Population: | 231 |
| Male Population: | 114 |
| Female Population: | 118 |
| Median Age: | 42.50 |
| Male Median Age: | 40.50 |
| Female Median Age: | 45.50 |
| Households: | 104 |
| Average Household Size: | 2.34 |
| Average House Value: | $63,200 |
| Average Household Income: | $42,917 |
| Number of Businesses: | 7 |
| Number of Employees: | 12 |
| Annual Payroll: | $547,000 |
| Land Area: | 23.383 sq mi |
| Water Area: | 0.007 sq mi |
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