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South Dakota ZIP Codes
Brown County
Barnard, SD
57426
57426 ZIP Code — Barnard, SD
Brown County, South Dakota
ZIP code 57426 is located in
Barnard ,
South Dakota ,
within Brown County .
It covers approximately 6.00 square miles and serves a population of
48 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 605 .
57426 ZIP code map
View map of 57426
Cities in ZIP code 57426
Below are the cities the US Postal Service accepts for ZIP code 57426. Using any city not on this list may result in mail delivery delays.
Demographics
updated 05/2026
Population
Total population
48
Population density
8 / sq mi
State FIPS
46
County FIPS
013
Geography
Land area
6.00 sq mi
Water area
0.00 sq mi
Latitude
45.7203
Longitude
-98.5075
Timezone
Central (CT)
Area code
605
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
0.0%
39.9%
41.7%
$50k – $100k
100.0%
34.8%
33.8%
$100k – $200k
0.0%
20.4%
20.1%
Over $200k
0.0%
4.9%
4.4%
Demographics & statistics
$74,250
Median household income
Age distribution
Age summary
Group Count %
Under 18 12 25.0%
18 and over 36 75.0%
65 and over 24 50.0%
Median age 54.5 years
Race & ethnicity
Group Count %
White 46 92%
Hispanic or Latino 2 4%
Two or more races 2 4%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
0.0%
39.9%
41.7%
$50k – $100k
100.0%
34.8%
33.8%
$100k – $200k
0.0%
20.4%
20.1%
Over $200k
0.0%
4.9%
4.4%
Range % of households
$50k–$75k 66.7%
$75k–$100k 33.3%
Median income $74,250
Housing
Housing overview
Metric Value
Median home value $0
Median rent / month $0
Owner occupied 66.7%
Renter occupied 33.3%
Vacant 0.0%
Single-family detached 100.0%
Large apartment buildings 0.0%
Mobile homes 0.0%
Median rooms 4.4
Avg household size (owned) 2.00
Year built
Era %
2020 or later 0.0%
2010–2019 0.0%
2000–2009 0.0%
1990–1999 0.0%
1980–1989 0.0%
1970–1979 0.0%
1960–1969 0.0%
1950–1959 0.0%
1940–1949 0.0%
1939 or earlier 100.0%
Bedrooms
Size % of units
No bedroom (studio) 0.0%
1 bedroom 0.0%
2 bedrooms 0.0%
3 bedrooms 100.0%
4 bedrooms 0.0%
5+ bedrooms 0.0%
Vehicles per household
Vehicles % of households
No vehicle 0.0%
1 vehicle 55.6%
2 vehicles 44.4%
3 or more 0.0%
Heating fuel
Fuel type %
Propane / LP gas 66.7%
Fuel oil 33.3%
Households & families
Household type Count %
Married-couple family 12 66.7%
Cohabiting couple 6 33.3%
Male householder, no spouse 0 0.0%
Female householder, no spouse 0 0.0%
Households with children under 18 6 33.3%
Households with seniors (65+) 12 66.7%
Average household size 2.67
Marital status
Status Male Female
Never married 31.6% 35.3%
Married 68.4% 64.7%
Separated 0.0% 0.0%
Widowed 0.0% 0.0%
Divorced 0.0% 0.0%
Education
Some college, no degree
52.8%
Graduate / professional
0.0%
Metric %
HS diploma or higher 100.0%
Bachelor's or higher 0.0%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 6 100.0%
Kindergarten 0 0.0%
Elementary school 0 0.0%
High school 0 0.0%
College / grad school 0 0.0%
Employment
Industry of employment
Transportation & utilities
50.0%
Occupation
Category %
Management, business & arts 0.0%
Service 0.0%
Sales & office 50.0%
Natural resources & construction 0.0%
Production & transportation 50.0%
Employment type
Type %
Private sector 100.0%
Government 0.0%
Self-employed 0.0%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 50.0%
Carpool 50.0%
Public transit 0.0%
Walk 0.0%
Work from home 0.0%
Other means 0.0%
Avg commute (minutes) 0.0
Poverty
Married-couple families
0.0%
Female-led households
0.0%
Income support
Source % of households
Social Security 66.7%
Retirement income 66.7%
Supplemental Security 0.0%
Cash public assistance 0.0%
Food stamps / SNAP 0.0%
Health indicators
Condition %
Obesity 32.4%
High blood pressure 37.4%
High cholesterol 36.2%
Diabetes 10.9%
Heart disease 7.8%
Stroke 3.4%
Asthma 7.8%
Arthritis 28.8%
Kidney disease 3.3%
Pulmonary disease 6.0%
Cancer 8.9%
Behavior / access %
Smoking 16.0%
Binge drinking 17.7%
No physical activity 23.7%
Less than 7 hrs sleep 27.8%
Depression 14.7%
Fair or poor health 10.9%
Poor mental health 9.2%
Poor physical health 8.6%
No health insurance 10.8%
Visited doctor (checkup) 77.9%
Visited dentist 70.6%
Cholesterol screening 91.6%
Teeth loss 11.6%
Veterans & disability
Veterans Count %
Civilian veterans 0 0.0%
Disability %
Any disability 4.2%
Under 18 0.0%
18–64 years 0.0%
65 and over 8.3%
Health insurance coverage
Type %
Private insurance 100.0%
Public insurance 50.0%
No insurance 0.0%
Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 42 87.5%
Spanish 0 0.0%
Other Indo-European 0 0.0%
Asian & Pacific Islander 0 0.0%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 48 100.0%
Born in same state 48 100.0%
Born in different state 30 62.5%
Foreign born 0 0.0%
Naturalized citizen 0 0.0%
Not a US citizen 0 0.0%
Ancestry
Ancestry Count %
Irish 18 37.5%
French 13 27.1%
Ancestry Count %
Polish 2 4.2%
Technology access
Metric % of households
Computer access 37.5%
Internet access 100.0%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 57426
What city is ZIP code 57426 in?
ZIP code 57426 is primarily assigned to Barnard, South Dakota.
What county is ZIP code 57426 in?
ZIP code 57426 falls within Brown County, South Dakota.
Does ZIP code 57426 have an older population?
50% of residents in ZIP code 57426 are 65 or older, above the national average of ~17%.
Does ZIP code 57426 have a large retiree population?
67% of households in ZIP code 57426 receive Social Security income, suggesting a significant retiree or disability population.
What is the population of ZIP code 57426?
ZIP code 57426 has an estimated population of 48 residents, with a density of 8 people per square mile.
What is the median household income in ZIP code 57426?
The median household income in ZIP code 57426 is $74,250, below the national median of ~$75,000.
What timezone is ZIP code 57426 in?
ZIP code 57426 observes the CST timezone.
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