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South Dakota ZIP Codes
Corson County
Walker, SD
57659
57659 ZIP Code — Walker, SD
Corson County, South Dakota
ZIP code 57659 is located in
Walker ,
South Dakota ,
within Corson County .
It covers approximately 13.51 square miles and serves a population of
12 residents.
This is a standard ZIP code in the Mountain (MT) timezone,
served by area code 605 .
57659 ZIP code map
View map of 57659
Cities in ZIP code 57659
Below are the cities the US Postal Service accepts for ZIP code 57659. Using any city not on this list may result in mail delivery delays.
Demographics
updated 05/2026
Population
Total population
12
Population density
1 / sq mi
State FIPS
46
County FIPS
031
Geography
Land area
13.51 sq mi
Water area
0.02 sq mi
Latitude
45.7658
Longitude
-101.0804
Timezone
Mountain (MT)
Area code
605
Demographics & statistics
$0
Median household income
57.1%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 5 41.7%
18 and over 7 58.3%
65 and over 2 16.7%
Median age 38.2 years
Race & ethnicity
Household income
Range % of households
$25k–$35k 25.0%
$150k–$200k 75.0%
Median income $0
Housing
Housing overview
Metric Value
Median home value $0
Median rent / month $0
Owner occupied 100.0%
Renter occupied 0.0%
Vacant 33.3%
Single-family detached 100.0%
Large apartment buildings 0.0%
Mobile homes 0.0%
Median rooms 6.1
Avg household size (owned) 3.00
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 33.3%
1950–1959 0.0%
1940–1949 16.7%
1939 or earlier 50.0%
Bedrooms
Size % of units
No bedroom (studio) 0.0%
1 bedroom 0.0%
2 bedrooms 0.0%
3 bedrooms 66.7%
4 bedrooms 33.3%
5+ bedrooms 0.0%
Vehicles per household
Vehicles % of households
No vehicle 0.0%
1 vehicle 0.0%
2 vehicles 25.0%
3 or more 75.0%
Heating fuel
Fuel type %
Propane / LP gas 100.0%
Households & families
Household type Count %
Married-couple family 4 100.0%
Cohabiting couple 0 0.0%
Male householder, no spouse 0 0.0%
Female householder, no spouse 0 0.0%
Households with children under 18 3 75.0%
Households with seniors (65+) 1 25.0%
Average household size 3.00
Marital status
Status Male Female
Never married 0.0% 0.0%
Married 100.0% 100.0%
Separated 0.0% 0.0%
Widowed 0.0% 0.0%
Divorced 0.0% 0.0%
Education
Some college, no degree
0.0%
Graduate / professional
28.6%
Metric %
HS diploma or higher 100.0%
Bachelor's or higher 57.1%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 2 40.0%
Kindergarten 0 0.0%
Elementary school 3 60.0%
High school 0 0.0%
College / grad school 0 0.0%
Employment
Industry of employment
Education & healthcare
40.0%
Occupation
Category %
Management, business & arts 0.0%
Service 0.0%
Sales & office 0.0%
Natural resources & construction 60.0%
Production & transportation 40.0%
Employment type
Type %
Private sector 0.0%
Government 100.0%
Self-employed 0.0%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 100.0%
Carpool 0.0%
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 25.0%
Retirement income 25.0%
Supplemental Security 0.0%
Cash public assistance 0.0%
Food stamps / SNAP 0.0%
Health indicators
Condition %
Obesity 0.0%
High blood pressure 0.0%
High cholesterol 0.0%
Diabetes 0.0%
Heart disease 0.0%
Stroke 0.0%
Asthma 0.0%
Arthritis 0.0%
Kidney disease 0.0%
Pulmonary disease 0.0%
Cancer 0.0%
Behavior / access %
Smoking 0.0%
Binge drinking 0.0%
No physical activity 0.0%
Less than 7 hrs sleep 0.0%
Depression 0.0%
Fair or poor health 0.0%
Poor mental health 0.0%
Poor physical health 0.0%
No health insurance 0.0%
Visited doctor (checkup) 0.0%
Visited dentist 0.0%
Cholesterol screening 0.0%
Teeth loss 0.0%
Veterans & disability
Veterans Count %
Civilian veterans 0 0.0%
Disability %
Any disability 0.0%
Under 18 0.0%
18–64 years 0.0%
65 and over 0.0%
Health insurance coverage
Type %
Private insurance 100.0%
Public insurance 16.7%
No insurance 0.0%
Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 12 100.0%
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) 12 100.0%
Born in same state 12 100.0%
Born in different state 0 0.0%
Foreign born 0 0.0%
Naturalized citizen 0 0.0%
Not a US citizen 0 0.0%
Ancestry
Ancestry Count %
Polish 8 66.7%
Technology access
Metric % of households
Computer access 33.3%
Internet access 100.0%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 57659
What city is ZIP code 57659 in?
ZIP code 57659 is primarily assigned to Walker, South Dakota.
What county is ZIP code 57659 in?
ZIP code 57659 falls within Corson County, South Dakota.
Is ZIP code 57659 family-oriented?
42% of residents in ZIP code 57659 are under 18, reflecting a younger, family-oriented community.
How educated is the population of ZIP code 57659?
57% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.
What is the population of ZIP code 57659?
ZIP code 57659 has an estimated population of 12 residents, with a density of 1 people per square mile.
What timezone is ZIP code 57659 in?
ZIP code 57659 observes the MST timezone.
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