Watertown is a medium-sized city located in the state of South Dakota. With a population of 23,019 people and six associated neighborhoods, Watertown is the fifth largest community in South Dakota.

Watertown real estate is some of the most expensive in South Dakota, although Watertown house values don't compare to the most expensive real estate in the U.S.

Residents of the city have the good fortune of having one of the shortest daily commutes compared to the rest of the country. On average, they spend only 14.15 minutes getting to work every day.

In terms of college education, Watertown is nearly on par with the US average for all cities of 21.84%: 20.50% of adults 25 and older in Watertown have a bachelor's degree or advanced degree.

The per capita income in Watertown in 2018 was $35,599, which is upper middle income relative to South Dakota and the nation. This equates to an annual income of $142,396 for a family of four. However, Watertown contains both very wealthy and poor people as well.

The people who call Watertown home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Watertown residents report their race to be White, followed by Native American. Important ancestries of people in Watertown include German, Norwegian, Irish, English, and Swedish.

The most common language spoken in Watertown is English. Other important languages spoken here include Polish and Spanish.