South Dakota · United States
Watertown population
22,073people · latest figure
Watertown has a population of 22,073, making it the 2039th largest place we list in United States. It is in South Dakota.
Watertown holds under a tenth of one per cent of United States's 349,035,494 people. New York City, the largest place we list there, is 399 times its size. Twenty years earlier the World Gazetteer recorded 32,918, a fall of 33%.
The 2005 figure comes from the World Gazetteer archive restored on this site. The two sources may draw the settlement's boundary differently, so treat the change as indicative rather than exact. Why figures differ.
Watertown is in South Dakota, which has 152 recorded places.
Nearby in size
| Place | Region | Population |
|---|---|---|
| Greater Northdale | Florida | 22,079 |
| Northdale | Florida | 22,079 |
| Summit | New Jersey | 22,074 |
| Alliance | Ohio | 22,055 |
| Kalispell | Montana | 22,052 |
| South Holland | Illinois | 22,043 |
All places in United States → · South Dakota →
Figures are the latest available in GeoNames (CC BY 4.0), which draws on national censuses of varying dates — treat them as recent, not same-year. Country totals are UN World Population Prospects 2024 (medium variant) where the UN lists the country separately; the handful it reports under a parent state keep a GeoNames figure and are marked as such. Sources & method.