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South Dakota ZIP Codes
Day County
Webster, SD
57274
57274 ZIP Code — Webster, SD
Day County, South Dakota
ZIP code 57274 is located in
Webster ,
South Dakota ,
within Day County .
It covers approximately 372.56 square miles and serves a population of
2,685 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 605 .
About ZIP code 57274
The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $161,800. Owner-occupancy sits near the national average at 74%.
Median household income is $61,477. 42% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 20 minutes is near the national average.
Educational attainment is near the national average, with 23% of residents holding a bachelor's degree or higher.
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Cities in ZIP code 57274
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
2,685
Population density
7 / sq mi
State FIPS
46
County FIPS
037
Geography
Land area
372.56 sq mi
Water area
22.85 sq mi
Latitude
45.3261
Longitude
-97.5447
Timezone
Central (CT)
Area code
605
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
51.2%
52.5%
41.7%
$50k – $100k
28.2%
30.0%
33.8%
$100k – $200k
20.3%
16.0%
20.1%
Over $200k
0.2%
1.5%
4.4%
Demographics & statistics
$61,477
Median household income
$161,800
Median home value
23.1%
Bachelor's or higher
Age distribution
Age summary
Group Count % Under 18 535 19.9% 18 and over 2,150 80.1% 65 and over 645 24.0% Median age 44.0 years
Race & ethnicity
American Indian / Alaska Native
1.6%
Group Count % White 2,588 95.2% American Indian / Alaska Native 44 1.6% Hispanic or Latino 33 1.2% Other race 29 1.1% Two or more races 15 0.6% Asian 9 0.3%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
51.2%
52.5%
41.7%
$50k – $100k
28.2%
30.0%
33.8%
$100k – $200k
20.3%
16.0%
20.1%
Over $200k
0.2%
1.5%
4.4%
Range % of households Under $10k 2.1% $10k–$15k 10.0% $15k–$25k 5.4% $25k–$35k 6.6% $35k–$50k 17.0% $50k–$75k 18.8% $75k–$100k 13.1% $100k–$150k 19.7% $150k–$200k 4.2% $200k+ 3.1% Median income $61,477
Housing
Housing overview
Metric Value Median home value $161,800 Median rent / month $565 Owner occupied 73.8% Renter occupied 26.2% Vacant 12.9% Single-family detached 79.8% Large apartment buildings 0.6% Mobile homes 3.3% Median rooms 6.1 Avg household size (owned) 2.32
Year built
Era % 2020 or later 0.4% 2010–2019 4.7% 2000–2009 6.0% 1990–1999 1.7% 1980–1989 6.8% 1970–1979 21.7% 1960–1969 15.1% 1950–1959 5.4% 1940–1949 10.2% 1939 or earlier 28.1%
Bedrooms
Size % of units No bedroom (studio) 0.2% 1 bedroom 13.2% 2 bedrooms 24.3% 3 bedrooms 30.3% 4 bedrooms 20.1% 5+ bedrooms 11.8%
Vehicles per household
Vehicles % of households No vehicle 4.4% 1 vehicle 30.8% 2 vehicles 31.4% 3 or more 33.4%
Heating fuel
Fuel type % Utility gas 39.1% Electricity 41.3% Propane / LP gas 10.4% Fuel oil 4.9% Wood 2.3% No fuel used 1.3%
Households & families
Household type Count % Married-couple family 509 42.5% Cohabiting couple 128 10.7% Male householder, no spouse 296 24.7% Female householder, no spouse 265 22.1% Households with children under 18 247 20.6% Households with seniors (65+) 471 39.3% Average household size 2.17
Marital status
Status Male Female Never married 33.0% 21.4% Married 51.2% 47.4% Separated 1.1% 0.7% Widowed 3.3% 20.2% Divorced 11.4% 10.2%
Education
Some college, no degree
19.8%
Graduate / professional
6.1%
Metric % HS diploma or higher 91.8% Bachelor's or higher 23.1%
School enrollment (ages 3–17)
Type Count % Nursery / preschool 30 5.7% Kindergarten 46 8.8% Elementary school 195 37.3% High school 145 27.7% College / grad school 107 20.5%
Employment
Industry of employment
Education & healthcare
18.1%
Agriculture & mining
10.0%
Public administration
8.6%
Arts, food & hospitality
8.5%
Finance & real estate
7.4%
Transportation & utilities
4.1%
Professional & management
3.2%
Occupation
Category % Management, business & arts 40.8% Service 14.7% Sales & office 17.8% Natural resources & construction 15.8% Production & transportation 10.9%
Employment type
Type % Private sector 73.6% Government 17.1% Self-employed 7.7% Unpaid family workers 1.6%
Commute
Method % Drive alone 80.9% Carpool 6.7% Public transit 0.5% Walk 4.0% Work from home 6.8% Other means 1.1% Avg commute (minutes) 19.5
Poverty
Married-couple families
6.7%
Female-led households
22.2%
Income support
Source % of households Social Security 42.3% Retirement income 26.0% Supplemental Security 3.1% Cash public assistance 0.8% Food stamps / SNAP 6.9%
Health indicators
Condition % Obesity 36.0% High blood pressure 37.4% High cholesterol 34.0% Diabetes 11.5% Heart disease 9.4% Stroke 4.3% Asthma 9.2% Arthritis 29.8% Kidney disease 3.9% Pulmonary disease 8.2% Cancer 9.0%
Behavior / access % Smoking 19.4% Binge drinking 16.3% No physical activity 27.5% Less than 7 hrs sleep 28.3% Depression 15.5% Fair or poor health 14.5% Poor mental health 10.5% Poor physical health 10.9% No health insurance 12.7% Visited doctor (checkup) 76.9% Visited dentist 63.0% Cholesterol screening 89.9% Teeth loss 16.8%
Veterans & disability
Veterans Count % Civilian veterans 155 7.2%
Disability % Any disability 12.3% Under 18 1.9% 18–64 years 6.9% 65 and over 35.3%
Health insurance coverage
Type % Private insurance 71.7% Public insurance 33.4% No insurance 6.6% Uninsured under 19 1.8%
Language & origin
Language spoken at home (age 5+)
Language Count % English only 2,544 94.7% Spanish 26 1.0% Other Indo-European 11 0.4% Asian & Pacific Islander 6 0.2% Other languages 9 0.4%
Place of birth & citizenship
Origin Count % Native born (US) 2,662 99.1% Born in same state 2,651 98.7% Born in different state 2,020 75.2% Foreign born 11 0.4% Naturalized citizen 23 0.9% Not a US citizen 14 60.9%
Ancestry
Ancestry Count % Polish 734 27.3% Arab 139 5.2% French 113 4.2% Italian 92 3.4%
Ancestry Count % English 46 1.7% German 18 0.7% Dutch 6 0.2%
Technology access
Metric % of households Computer access 44.6% Internet access 92.4%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 57274
What city is ZIP code 57274 in?
ZIP code 57274 is primarily assigned to Webster, South Dakota.
What county is ZIP code 57274 in?
ZIP code 57274 falls within Day County, South Dakota.
Does ZIP code 57274 have a large retiree population?
42% of households in ZIP code 57274 receive Social Security income, suggesting a significant retiree or disability population.
What is the typical home value in ZIP code 57274?
The median home value in ZIP code 57274 is $161,800.
What is the population of ZIP code 57274?
ZIP code 57274 has an estimated population of 2,685 residents, with a density of 7 people per square mile.
What is the median household income in ZIP code 57274?
The median household income in ZIP code 57274 is $61,477, below the national median of ~$75,000.
What timezone is ZIP code 57274 in?
ZIP code 57274 observes the CST timezone.
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