| Population | 21,795 (2010-2014), rank #5 |
| Population Growth | 7.70% since 2000, rank #125 |
| Population Density: | 870.56/sq mi, rank #120 |
| Median Household Income: | $45,185 at 2010-2014—31.55% increase since 2000, rank #150 |
| Median House Price: | $138,800 at 2010-2014—64.07% increase since 2000, rank #36 |
| Time Zone: | Central GMT -6:00 with Daylight Saving in the Summer |
| Land Area: | 17.45 sq mi, rank #6 |
| Water Area: | 7.59 sq mi (30.31%), rank #2 |
| State: | South Dakota |
| Area: | Watertown, SD |
| Counties: | Codington County, Hamlin County |
| School District: | ![](\"http://www.usa.com/img/s10.gif\") , rank #1 |
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