Watertown ZIP Codes — Codington County, SD

There is one unique ZIP code in Watertown, South Dakota and it is 57201. Area code: 605.

ZIP codes

319.09

sq mi land

13.98

sq mi water

605

area code

Watertown, SD ZIP code map

About Watertown, SD

Watertown, South Dakota, is a vibrant city located in the northeastern part of the state. It serves as the county seat of Codington County and is known for its beautiful lakes and recreational opportunities. With a rich history and a welcoming community, Watertown is a place where residents thrive and visitors find plenty to enjoy.

Location & geography

Watertown is situated in Codington County and occupies a diverse landscape that includes both land and water. The city is approximately 30 miles from the Minnesota border and is surrounded by other cities such as Brookings to the south, Sioux Falls to the southwest, and Aberdeen to the northeast, each providing accessible nearby options for exploration. Covering an area of 319.09 square miles of land and 13.98 square miles of water, its terrain features picturesque lakes and park areas that enhance its natural beauty.

Community & economy

The community of Watertown is characterized by its friendly and close-knit atmosphere, which contributes to a high quality of life for its residents. Key industries in the area include agriculture, manufacturing, and retail, providing ample job opportunities. Daily life in Watertown revolves around a range of local events, family-friendly activities, and a commitment to preserving its historical legacy.

Transportation

Transportation in Watertown is facilitated by major highways, including U.S. Route 81, which runs north-south through the city, and South Dakota Highway 212, which connects east to west. The nearest commercial airport is Watertown Regional Airport, located just a few miles from the city center, offering convenient travel options for residents and visitors alike.

History

Founded in the 1870s, Watertown has a rich history rooted in agriculture and trade, with its location by the river making it a key point for early settlers. Over the years, the city has developed into an economic center for the region, marked by significant events such as the establishment of local businesses and community gatherings that celebrate its heritage. The city continues to honor its past while evolving into a modern hub for commerce and recreation.

Did you know?

One surprising fact about Watertown is that it is home to the largest collection of Native American artifacts in South Dakota, housed in the Codington County Heritage Museum. Additionally, the local lakes offer a variety of water sports and are popular spots for fishing, making it a hidden gem for outdoor enthusiasts.

ZIP codes for Watertown, SD (1)

ZIP code	City	County	Map
57201	Watertown	Codington	View map

Demographics & statistics

26,119

Population

39.2

Median age

$65,761

Median household income

$36,265

Per capita income

$213,300

Median home value

$865

Median monthly rent

65.6%

Home ownership

11.2%

Poverty rate

1.6%

Unemployment

8,300

Housing units

20.6%

Bachelor's or higher

Age distribution

Male Female

717

Under 5

696

851

5–9

827

926

10–14

900

954

15–19

928

797

20–24

774

1,695

25–34

1,647

1,620

35–44

1,574

1,523

45–54

1,481

868

55–59

844

900

60–64

875

1,302

65–74

1,265

779

75–84

757

314

85+

305

← Male

Female →

Age summary

Group	Count	%
Under 18	6,065	23.2%
18 and over	20,054	76.8%
65 and over	4,722	18.1%
Median age	39.2 years

Race & ethnicity

White 91%

Two or more races 3.4%

American Indian / Alaska Native 2.4%

Hispanic or Latino 1.3%

Other race 0.8%

Black or African American 0.6%

Asian 0.6%

Group	Count	%
White	24,073	91%
Two or more races	892	3.4%
American Indian / Alaska Native	625	2.4%
Hispanic or Latino	336	1.3%
Other race	211	0.8%
Black or African American	169	0.6%
Asian	149	0.6%

Household income

Under $10k 5.1%

$10k–$15k 3.7%

$15k–$25k 7.9%

$25k–$35k 6.6%

$35k–$50k 14.8%

$50k–$75k 17.7%

$75k–$100k 16.2%

$100k–$150k 17.7%

$150k–$200k 5.7%

$200k+ 4.5%

Range	% of households
Under $10k	5.1%
$10k–$15k	3.7%
$15k–$25k	7.9%
$25k–$35k	6.6%
$35k–$50k	14.8%
$50k–$75k	17.7%
$75k–$100k	16.2%
$100k–$150k	17.7%
$150k–$200k	5.7%
$200k+	4.5%
Median income	$65,761

Housing

Home values

Under $50k 6.3%

$50k–$100k 6.8%

$100k–$150k 13.5%

$150k–$200k 19.6%

$200k–$300k 26.8%

$300k–$500k 19.8%

$500k–$1M 6.6%

$1M+ 0.5%

Housing overview

Metric	Value
Median home value	$213,300
Median rent / month	$865
Owner occupied	65.6%
Renter occupied	34.4%
Vacant	7.6%
Single-family detached	66.7%
Large apartment buildings	6.5%
Mobile homes	7.6%
Median rooms	5.8
Avg household size (owned)	2.44

Year built

Era	%
2020 or later	0.8%
2010–2019	12.1%
2000–2009	15.9%
1990–1999	13.0%
1980–1989	9.7%
1970–1979	16.9%
1960–1969	5.2%
1950–1959	7.4%
1940–1949	4.0%
1939 or earlier	15.1%

Bedrooms

Size	% of units
No bedroom (studio)	2.4%
1 bedroom	10.4%
2 bedrooms	29.8%
3 bedrooms	30.1%
4 bedrooms	20.7%
5+ bedrooms	6.6%

Vehicles per household

Vehicles	% of households
No vehicle	5.8%
1 vehicle	27.2%
2 vehicles	38.3%
3 or more	28.8%

Heating fuel

Fuel type	%
Utility gas	59.5%
Electricity	34.3%
Propane / LP gas	4.0%
Wood	0.6%
No fuel used	0.8%

Households & families

Household type	Count	%
Married-couple family	5,311	47.3%
Cohabiting couple	834	7.4%
Male householder, no spouse	2,571	22.9%
Female householder, no spouse	2,521	22.4%
Households with children under 18	2,968	26.4%
Households with seniors (65+)	3,409	30.3%
Average household size	2.27

Marital status

Status	Male	Female
Never married	35.1%	24.5%
Married	50.6%	53.5%
Separated	1.2%	0.8%
Widowed	3.9%	11.0%
Divorced	9.1%	10.2%

Education

Less than 9th grade 3.5%

Some HS, no diploma 5.0%

HS graduate 38.7%

Some college, no degree 18.1%

Associate's degree 14.2%

Bachelor's degree 14.2%

Graduate / professional 6.4%

Metric	%
HS diploma or higher	91.6%
Bachelor's or higher	20.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	485	7.8%
Kindergarten	375	6.0%
Elementary school	2,572	41.1%
High school	1,473	23.5%
College / grad school	1,352	21.6%

Employment

Industry of employment

Education & healthcare 20.1%

Manufacturing 16.8%

Retail trade 14.2%

Arts, food & hospitality 9.3%

Construction 6.6%

Other services 5.6%

Agriculture & mining 5.1%

Finance & real estate 4.9%

Public administration 4.4%

Wholesale trade 4.0%

Professional & management 4.0%

Transportation & utilities 3.1%

Information 1.8%

Occupation

Category	%
Management, business & arts	35.2%
Service	14.8%
Sales & office	22.0%
Natural resources & construction	8.9%
Production & transportation	19.2%

Employment type

Type	%
Private sector	81.2%
Government	12.3%
Self-employed	6.3%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	86.7%
Carpool	6.1%
Public transit	0.5%
Walk	0.8%
Other means	1.2%
Avg commute (minutes)	13.8

Poverty

All people 11.2%

Under 18 years 11.6%

18 and over 11.0%

Married-couple families 2.1%

Female-led households 28.8%

Income support

Source	% of households
Social Security	30.4%
Retirement income	21.6%
Supplemental Security	2.0%
Cash public assistance	2.0%
Food stamps / SNAP	6.8%

Health indicators

Condition	%
High blood pressure	29.3%
High cholesterol	27.0%
Heart disease	6.7%
Stroke	3.1%
Asthma	8.7%
Arthritis	23.1%
Kidney disease	2.9%
Pulmonary disease	6.0%
Cancer	7.0%

Behavior / access	%
Binge drinking	22.4%
No physical activity	24.6%
Less than 7 hrs sleep	28.4%
Fair or poor health	12.2%
Poor mental health	11.2%
Poor physical health	9.0%
No health insurance	11.8%
Visited doctor (checkup)	77.2%
Visited dentist	69.2%
Cholesterol screening	87.2%
Teeth loss	14.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,766	8.8%

Disability	%
Any disability	11.5%
Under 18	2.7%
18–64 years	9.3%
65 and over	31.0%

Health insurance coverage

Type	%
Private insurance	75.8%
Public insurance	28.4%
Uninsured under 19	5.1%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	24,706	94.6%
Spanish	227	0.9%
Other Indo-European	119	0.5%
Asian & Pacific Islander	1	0.0%
Other languages	5	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	25,627	98.1%
Born in same state	25,440	97.4%
Born in different state	18,218	69.7%
Foreign born	187	0.7%
Naturalized citizen	492	1.9%
Not a US citizen	80	16.3%

Ancestry

Ancestry	Count	%
Polish	4,310	16.5%
Italian	2,612	10%
French	1,481	5.7%
Arab	755	2.9%

Ancestry	Count	%
English	737	2.8%
Dutch	407	1.6%
German	63	0.2%
Irish	16	0.1%

Technology access

Metric	% of households
Computer access	43.0%
Internet access	90.0%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What ZIP codes does Watertown, SD have?

Watertown, SD has one ZIP code: 57201. Each ZIP code serves a distinct delivery area within the city and surrounding region.