the resident population of the United States more»
      
    
  | City: | Union | 
| State: | Iowa | 
| Area Code: | 641 | 
| Latitude: | 42.218106 | 
| Longitude: | -93.075914 | 
| Time Zone: | Eastern GMT -6 | 
| City Alias(es): | |
| Population: | 508 | 
| 2000 Population: | 899 | 
| White Population: | 890 | 
| Black Population: | 1 | 
| Hispanic Population: | 7 | 
| Asian Population: | 1 | 
| Hawaiian Population: | 3 | 
| Other Population: | 4 | 
| Male Population: | 458 | 
| Female Population: | 441 | 
| Median Age: | 40.50 | 
| Male Median Age: | 38.60 | 
| Female Median Age: | 41.80 | 
| Households: | 416 | 
| Average Household Size: | 2.42 | 
| Average House Value: | $49,500 | 
| Average Household Income: | $34,167 | 
| Number of Businesses: | 18 | 
| Number of Employees: | 96 | 
| Annual Payroll: | $2,469,000 | 
| Land Area: | 54.836 sq mi | 
| Water Area: | 0.176 sq mi | 
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