Postal Codes

57201 ZIP Code

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ZIP code 57201 covers Watertown, South Dakota, with a population of about 26,375 and a median household income of $64,809.

Population
26,37583 per square mile
Median age
39.50.8 points above the US average
Median household income
$64,80911% below the South Dakota median
Poverty rate
10.4%2 points below the US average
Typical home value
$326,761up 22.9% in five years
Median rent
$903about the South Dakota median
Degree or higher
21.3%13.7 points below the US average
Homeownership
66%1 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
1,150

Where 57201 is

Watertown, South Dakota — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population26,375
Median age39.5
Family households57.7%
Born outside the US1.2%
Speaks a language other than English at home3.1%
White (non-Hispanic)90.5%
Black (non-Hispanic)0.8%
Asian (non-Hispanic)0.6%
Hispanic or Latino3.1%
Veterans7.7%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$64,809
Income per person$37,334
Poverty rate10.4%
Households on SNAP or cash assistance8.3%

Household income distribution

Under $10k5.3%
$10–15k3.5%
$15–20k3.1%
$20–25k4.7%
$25–30k4.6%
$30–35k1.8%
$35–40k4.7%
$40–45k5.4%
$45–50k5.6%
$50–60k7.9%
$60–75k9.2%
$75–100k15.8%
$100–125k12.3%
$125–150k5.1%
$150–200k6.9%
$200k or more4.1%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed13,080
Mean adjusted gross income$82,759
Returns declaring $200,000 or more6%
Returns, under $25k24.9%
Returns, $25k–$50k26.1%
Returns, $50k–$75k15.9%
Returns, $75k–$100k10.5%
Returns, $100k–$200k16.7%
Returns, $200k or more6.0%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$223,600
Median gross rent$903
Rent as a share of household income24.8%
Owner-occupied66%
Vacant homes7%
Median year built1980

What the homes are

Detached house67.4%
Attached house5.4%
2 to 4 units7%
5 to 19 units8%
20 or more units5.7%
Mobile home6.6%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$326,761as of 2026-07
Typical home value, 1 yearup 2.6%
Typical home value, 5 yearsup 22.9%
Typical home value, 10 yearsup 59.4%
Typical asking rent$1,205as of 2026-07
Typical home value since 2000
201620212026$326,761$204,986

$204,986 in 2016 to $326,761 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate2.1%
Bachelor's degree or higher21.3%
High school diploma or higher92.1%
Works from home5.9%
Drives to work alone84.5%
Takes public transport0.5%
Commutes 45 minutes or more5.5%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity35.6% 2.2 pts above the national average of 33.4%
Diagnosed diabetes11.7% same as the national average of 12%
Currently smokes16.1% 2.9 pts above the national average of 13.2%
High blood pressure32.3% 1.8 pts below the national average of 34.1%
Fair or poor general health18.7% 1.6 pts below the national average of 20.3%
No health insurance (18–64)8.7% 2.6 pts below the national average of 11.3%
Depression21.7% same as the national average of 21.9%
No leisure-time physical activity26.3% 0.9 pts above the national average of 25.4%
Arthritis26.8% 1.7 pts above the national average of 25.1%
Binge drinking19.1% 3.1 pts above the national average of 16%
Taking blood pressure medication76.5% 1.8 pts above the national average of 74.7%
Cancer (non-skin)9.7% 2 pts above the national average of 7.7%
Current asthma10.3% same as the national average of 10.4%
Coronary heart disease7.2% 1 pts above the national average of 6.2%
Routine check-up in past year76.9% same as the national average of 76.7%
Cholesterol screening83.6% 2.3 pts below the national average of 85.9%
Cognitive disability14.7% same as the national average of 14.8%
Colorectal screening67.8% 3.5 pts above the national average of 64.3%
COPD7.2% 0.6 pts above the national average of 6.6%
Visited a dentist67.3% 6 pts above the national average of 61.3%
Any disability31.3% 0.6 pts above the national average of 30.7%
Hearing disability8.8% 2.1 pts above the national average of 6.7%
High cholesterol33.6% 2.6 pts below the national average of 36.2%
Independent living disability8.3% same as the national average of 8.4%
Mammography use81.4% 5.5 pts above the national average of 75.9%
Poor mental health (14+ days)15.5% 1.3 pts below the national average of 16.8%
Mobility disability13.3% 0.7 pts below the national average of 14%
Poor physical health (14+ days)12.9% 0.6 pts below the national average of 13.5%
Self-care disability3.7% same as the national average of 4%
Sleeps under 7 hours30.3% 6.1 pts below the national average of 36.4%
Stroke3.7% same as the national average of 3.4%
All natural teeth lost13.1% same as the national average of 13%
Vision disability4.8% 0.8 pts below the national average of 5.6%
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments1,150
People employed14,287
Annual payroll$639,568,000
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Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 81.1% of US census tracts
FEMA ratingRelatively Moderate to Relatively High across the 9 census tracts this ZIP code covers
Expected annual loss88.4 out of 100
Community resilience65.5 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Ice storm98.7Very High at its worst in this ZIP code
Winter weather98.5Very High at its worst in this ZIP code
Cold wave93.8Very High at its worst in this ZIP code
Hail92.6Relatively High at its worst in this ZIP code
Wildfire91.6Relatively Moderate at its worst in this ZIP code
Strong wind91.4Very High at its worst in this ZIP code
Tornado90.3Very High at its worst in this ZIP code
Drought89.3Relatively Moderate at its worst in this ZIP code
River flooding84.2Very High at its worst in this ZIP code
Landslide76.1Very Low at its worst in this ZIP code
Heat wave33.4Relatively Moderate at its worst in this ZIP code
Lightning18.8Relatively Low at its worst in this ZIP code
Earthquake12.1Very Low at its worst in this ZIP code
Compared with South Dakota and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPSouth DakotaUnited States
Median household income$64,809$72,421$78,538
Income per person$37,334$38,880$43,289
Poverty rate10.4%12%12.4%
Median home value$223,600$236,800$303,400
Median gross rent$903$912$1,348
Homeownership66%68.6%65%
Bachelor's degree or higher21.3%31.1%35%
Unemployment rate2.1%3%5.2%
Works from home5.9%9.3%13.5%
Born outside the US1.2%3.9%13.9%
Median age39.537.738.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationWATERTOWN RGNL AP, SD US2 km away
Rain in a year23 in
Snow in a year41 in

Average high and low by month

January21.4°F / 3.1°F0.58 in rain, 6.7 in snow
February25.9°F / 6.7°F0.65 in rain, 8.9 in snow
March38.6°F / 19.6°F1 in rain, 5.4 in snow
April54°F / 31.5°F2.06 in rain, 5.2 in snow
May66.9°F / 44.5°F2.87 in rain, 0.1 in snow
June76.8°F / 55.4°F3.85 in rain
July82°F / 60°F3.05 in rain
August79.5°F / 57.5°F2.89 in rain
September71.6°F / 48.6°F2.45 in rain
October56.2°F / 35.2°F1.95 in rain, 1.4 in snow
November39.8°F / 21.3°F0.68 in rain, 4.5 in snow
December26.3°F / 9.3°F0.68 in rain, 8.9 in snow
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarket4% of this ZIP code's area
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 3 school districts, so the address decides which one, not the ZIP code.

Watertown School District 14-468.5% of this ZIP code's land area
Waverly School District 14-529.5% of this ZIP code's land area
Castlewood School District 28-11.2% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability22more vulnerable than 22% of US census tracts
Socioeconomic status17more vulnerable than 17% of US census tracts
Household characteristics30more vulnerable than 30% of US census tracts
Racial and ethnic minority status7more vulnerable than 7% of US census tracts
Housing type and transport49more vulnerable than 49% of US census tracts
Walkability5 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

57245 Kranzburg, SD16.3 km away
57223 Castlewood, SD20.9 km away
57238 Goodwin, SD21 km away
57235 Florence, SD21.1 km away
57242 Hazel, SD21.9 km away
57263 South Shore, SD24.8 km away
57243 Henry, SD25.3 km away
57241 Hayti, SD27.9 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Codington County99.1% of this ZIP code's land area
Hamlin County0.9% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area319.09 sq mi
Water area13.98 sq mi
Population density83 people per sq mi
Latitude, longitude44.9043, -97.1240

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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