South Dakota / Census place 4669300

Watertown

A Census profile of the people, homes, and daily patterns that shape this place.

Official Census name: Watertown city

At a glance

A city in numbers.

Population
23,736
2025 estimate
Annual change
+1.1%
Population estimate
Density
1,274/sq mi
18.6 sq mi land area
Median age
39.5 years
ACS 5-year estimate

Living here

The everyday equation.

Households, homes, education, and the time it takes to get around.

Median household income
$69,600
Median home value
$229,400
Median gross rent
$942
Bachelor’s degree or higher
21.6%
Typical commute
12.6 min
Public transit commute
0.6%

Climate normals

The long view of weather.

Thirty-year averages, not a forecast. Temperature and precipitation describe the typical conditions recorded from 1991 through 2020.

Representative station: WATERTOWN RGNL AP (0 mi from place center)
Average high
53.3°F
Average low
32.7°F
Annual rainfall
22.7"
Annual snowfall
41.1"

Month by month

A year in Watertown.

Typical high and low °F
JFMAMJJASOND
Typical precipitation inches
J
F
M
A
M
J
J
A
S
O
N
D

Data vintage

Population is from the 2025 Population Estimates Program. Household, housing, education, and commute data are from the 2020-2024 American Community Survey 5-year release.

Similar places

More places to consider.

Selected by the closest mix of population, density, median home value, and average annual high.

WY

Rock Springs, WY

Population, housing, work, and travel data for this Census place.

Population
22,936
Median home
$256,200
MN

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Population, housing, work, and travel data for this Census place.

Population
25,040
Median home
$241,500
MI

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Population, housing, work, and travel data for this Census place.

Population
25,088
Median home
$234,800

Keep exploring

Compare Watertown with Rock Springs