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South Dakota ZIP Codes
Lake County
Winfred, SD
57076
57076 ZIP Code — Winfred, SD
Lake County, South Dakota
ZIP code 57076 is located in
Winfred ,
South Dakota ,
within Lake County .
It covers approximately 105.39 square miles and serves a population of
419 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 605 .
About ZIP code 57076
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 $281,600. Owner-occupancy sits near the national average at 75%.
Median household income is $101,435. 36% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with agriculture and mining as the leading industry. The average commute of 15 minutes is near the national average. Remote work is prevalent — 20% of workers work from home.
College attainment at 14% is below the national average, consistent with a trades and production-oriented local economy.
Overall, ZIP code 57076 reflects a community defined by a trades-oriented workforce, a high rate of remote workers, and a significant Social Security-dependent population.
57076 ZIP code map
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Cities in ZIP code 57076
Below are the cities the US Postal Service accepts for ZIP code 57076. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
419
Population density
4 / sq mi
State FIPS
46
County FIPS
079
Geography
Land area
105.39 sq mi
Water area
0.08 sq mi
Latitude
43.9864
Longitude
-97.3397
Timezone
Central (CT)
Area code
605
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
18.7%
34.6%
41.7%
$50k – $100k
42.6%
39.3%
33.8%
$100k – $200k
35.4%
21.7%
20.1%
Over $200k
3.3%
4.4%
4.4%
Demographics & statistics
$101,435
Median household income
$281,600
Median home value
13.8%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 44 10.5%
18 and over 375 89.5%
65 and over 115 27.4%
Median age 59.7 years
Race & ethnicity
Household income
Income range
This ZIP
County avg
State avg
Under $50k
18.7%
34.6%
41.7%
$50k – $100k
42.6%
39.3%
33.8%
$100k – $200k
35.4%
21.7%
20.1%
Over $200k
3.3%
4.4%
4.4%
Range % of households
$25k–$35k 2.8%
$35k–$50k 7.8%
$50k–$75k 21.8%
$75k–$100k 8.9%
$100k–$150k 31.8%
$150k–$200k 18.4%
$200k+ 8.4%
Median income $101,435
Housing
Housing overview
Metric Value
Median home value $281,600
Median rent / month $0
Owner occupied 74.9%
Renter occupied 25.1%
Vacant 3.8%
Single-family detached 97.3%
Large apartment buildings 0.0%
Mobile homes 0.0%
Median rooms 7.2
Avg household size (owned) 2.49
Year built
Era %
2020 or later 0.0%
2010–2019 5.4%
2000–2009 10.8%
1990–1999 8.1%
1980–1989 0.0%
1970–1979 15.1%
1960–1969 2.7%
1950–1959 5.4%
1940–1949 8.6%
1939 or earlier 44.1%
Bedrooms
Size % of units
No bedroom (studio) 0.0%
1 bedroom 0.0%
2 bedrooms 15.1%
3 bedrooms 26.9%
4 bedrooms 24.2%
5+ bedrooms 33.9%
Vehicles per household
Vehicles % of households
No vehicle 0.0%
1 vehicle 30.7%
2 vehicles 22.3%
3 or more 46.9%
Heating fuel
Fuel type %
Utility gas 11.7%
Electricity 34.1%
Propane / LP gas 46.9%
Households & families
Household type Count %
Married-couple family 152 84.9%
Cohabiting couple 0 0.0%
Male householder, no spouse 27 15.1%
Female householder, no spouse 0 0.0%
Households with children under 18 44 24.6%
Households with seniors (65+) 69 38.5%
Average household size 2.34
Marital status
Status Male Female
Never married 20.5% 13.9%
Married 74.1% 86.1%
Separated 0.0% 0.0%
Widowed 0.0% 0.0%
Divorced 5.4% 0.0%
Education
Some college, no degree
10.9%
Graduate / professional
1.2%
Metric %
HS diploma or higher 89.4%
Bachelor's or higher 13.8%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 2 3.3%
Kindergarten 0 0.0%
Elementary school 12 20.0%
High school 23 38.3%
College / grad school 23 38.3%
Employment
Industry of employment
Agriculture & mining
22.0%
Education & healthcare
20.7%
Public administration
6.6%
Occupation
Category %
Management, business & arts 42.7%
Service 1.3%
Sales & office 12.3%
Natural resources & construction 5.7%
Production & transportation 37.9%
Employment type
Type %
Private sector 64.3%
Government 16.7%
Self-employed 18.9%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 70.0%
Carpool 0.0%
Public transit 0.0%
Walk 0.0%
Work from home 20.3%
Other means 9.7%
Avg commute (minutes) 14.6
Poverty
Married-couple families
0.0%
Female-led households
0.0%
Income support
Source % of households
Social Security 35.8%
Retirement income 10.6%
Supplemental Security 0.0%
Cash public assistance 0.0%
Food stamps / SNAP 0.0%
Health indicators
Condition %
Obesity 31.9%
High blood pressure 27.1%
High cholesterol 28.2%
Diabetes 7.6%
Heart disease 5.7%
Stroke 2.5%
Asthma 8.6%
Arthritis 20.9%
Kidney disease 2.4%
Pulmonary disease 5.0%
Cancer 6.4%
Behavior / access %
Smoking 16.8%
Binge drinking 21.7%
No physical activity 20.5%
Less than 7 hrs sleep 28.1%
Depression 15.3%
Fair or poor health 9.5%
Poor mental health 10.6%
Poor physical health 7.7%
No health insurance 11.0%
Visited doctor (checkup) 73.1%
Visited dentist 69.9%
Cholesterol screening 88.0%
Teeth loss 12.1%
Veterans & disability
Veterans Count %
Civilian veterans 13 3.5%
Disability %
Any disability 12.4%
Under 18 0.0%
18–64 years 0.0%
65 and over 45.2%
Health insurance coverage
Type %
Private insurance 98.8%
Public insurance 26.5%
No insurance 0.0%
Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 412 98.3%
Spanish 5 1.2%
Other Indo-European 0 0.0%
Asian & Pacific Islander 5 1.2%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 419 100.0%
Born in same state 419 100.0%
Born in different state 366 87.4%
Foreign born 0 0.0%
Naturalized citizen 0 0.0%
Not a US citizen 0 0.0%
Ancestry
Ancestry Count %
Polish 87 20.8%
Italian 47 11.2%
Dutch 6 1.4%
Ancestry Count %
English 5 1.2%
French 4 1%
Technology access
Metric % of households
Computer access 42.7%
Internet access 93.9%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 57076
What city is ZIP code 57076 in?
ZIP code 57076 is primarily assigned to Winfred, South Dakota.
What county is ZIP code 57076 in?
ZIP code 57076 falls within Miner County, South Dakota.
Does ZIP code 57076 have an older population?
27% of residents in ZIP code 57076 are 65 or older, above the national average of ~17%.
How educated is the population of ZIP code 57076?
14% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.
Does ZIP code 57076 have a large retiree population?
36% of households in ZIP code 57076 receive Social Security income, suggesting a significant retiree or disability population.
What is the population of ZIP code 57076?
ZIP code 57076 has an estimated population of 419 residents, with a density of 4 people per square mile.
What timezone is ZIP code 57076 in?
ZIP code 57076 observes the CST timezone.
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