the resident population of the United States more»
| City: | Johnston |
| State: | Iowa |
| Area Code: | 515 |
| Latitude: | 41.717622 |
| Longitude: | -93.711720 |
| Time Zone: | Eastern GMT -6 |
| City Alias(es): | Camp Dodge |
| Population: | 16,534 |
| 2000 Population: | 8,970 |
| White Population: | 8,634 |
| Black Population: | 55 |
| Hispanic Population: | 134 |
| Asian Population: | 174 |
| Hawaiian Population: | 9 |
| Other Population: | 43 |
| Male Population: | 4,412 |
| Female Population: | 4,558 |
| Median Age: | 36.50 |
| Male Median Age: | 34.90 |
| Female Median Age: | 37.90 |
| Households: | 3,529 |
| Average Household Size: | 2.61 |
| Average House Value: | $190,000 |
| Average Household Income: | $76,309 |
| Number of Businesses: | 390 |
| Number of Employees: | 8,055 |
| Annual Payroll: | $368,551,000 |
| Land Area: | 20.742 sq mi |
| Water Area: | 0.228 sq mi |
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