![](\"http://www.usa.com/img/s10.gif\")
, rank #1| Population | 17,900 (2010-2014), rank #39 |
| Population Growth | -4.17% since 2000, rank #53 |
| Population Density: | 22.58/sq mi, rank #64 |
| Median Household Income: | $47,725 at 2010-2014—40.09% increase since 2000, rank #57 |
| Median House Price: | $104,900 at 2010-2014—57.98% increase since 2000, rank #41 |
| Time Zone: | Central GMT -6:00 with Daylight Saving in the Summer |
| Land Area: | 778.54 sq mi, rank #5 |
| Water Area: | 14.13 sq mi (1.78%), rank #9 |
| State: | Iowa |
| School District: | , rank #1 |