Watertown Population 2026
Watertown has a population of 22,073, making it the #2156 biggest city in 🇺🇸 United States, located in South Dakota. It is about 399× smaller than New York City, the country's biggest city.
Population (city proper)
22,073
Rank in United States
#2156
Coordinates
44.90°N, 97.12°W
~528 m elevation · America/Chicago
Distance to capital (Washington)
1,785 km
1,108 miles, straight line
Other big cities in South Dakota
| City | Population | Rank in United States |
|---|---|---|
| Sioux Falls | 171,544 | #154 |
| Rapid City | 73,569 | #516 |
| Aberdeen | 28,102 | #1662 |
| Brookings | 23,657 | #2005 |
| Mitchell | 15,669 | #2990 |
Cities near Watertown
- Brookings23,657 people · ~70 km away
- Aberdeen28,102 people · ~125 km away
- Mitchell15,669 people · ~151 km away
- Sioux Falls171,544 people · ~154 km away
- Willmar19,638 people · ~165 km away
- West Fargo33,597 people · ~220 km away
FAQ
What is the population of Watertown?
Watertown has a population of 22,073 (city proper, latest official figure via GeoNames), making it the #2156 biggest city in United States.
What state is Watertown in?
Watertown is located in South Dakota, United States.
Is Watertown the capital of United States?
No, the capital of United States is Washington D.C., about 1,785 km away.
Sources & notes
Population refers to the city proper (municipal boundaries), not the metropolitan area. Source: GeoNames (CC BY 4.0), retrieved 2026-07-07. Country data: UN World Population Prospects 2024.
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