ZipCodesToGo
South Dakota ZIP Codes
Jackson County
Kadoka, SD
57543
57543 ZIP Code — Kadoka, SD
Jackson County, South Dakota
ZIP code 57543 is located in
Kadoka ,
South Dakota ,
within Jackson County .
It covers approximately 465.67 square miles and serves a population of
837 residents.
This is a standard ZIP code in the Mountain (MT) timezone,
served by area code 605 .
About ZIP code 57543
The housing stock consists of a higher-than-average concentration of mobile homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $151,300. Owner-occupancy sits near the national average at 59%.
Median household income is $23,625. Poverty affects 46% of residents, above the national average. SNAP benefit usage at 22% of households reflects economic stress in the area. 48% 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 9 minutes is near the national average.
College attainment at 9% is below the national average, consistent with a trades and production-oriented local economy.
Health indicators show elevated rates of smoking (22%) compared to national benchmarks. 27% of residents lack health insurance, above the national average.
Overall, ZIP code 57543 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, a significant Social Security-dependent population, and elevated reliance on food assistance.
57543 ZIP code map
View map of 57543
Cities in ZIP code 57543
Below are the cities the US Postal Service accepts for ZIP code 57543. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 06/2026
Population
Total population
837
Population density
2 / sq mi
State FIPS
46
County FIPS
071
Geography
Land area
465.67 sq mi
Water area
3.06 sq mi
Latitude
43.8416
Longitude
-101.6987
Timezone
Mountain (MT)
Area code
605
Economics
updated 06/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
66.2%
74.4%
41.7%
$50k – $100k
33.3%
21.6%
33.8%
$100k – $200k
0.4%
4.0%
20.1%
Over $200k
0.0%
0.0%
4.4%
Demographics & statistics
$23,625
Median household income
$151,300
Median home value
Age distribution
Age summary
Group Count % Under 18 167 20.0% 18 and over 670 80.0% 65 and over 229 27.4% Median age 39.3 years
Race & ethnicity
American Indian / Alaska Native
45.1%
Group Count % American Indian / Alaska Native 391 45.1% White 388 44.8% Two or more races 49 5.7% Hispanic or Latino 30 3.5% Asian 9 1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
66.2%
74.4%
41.7%
$50k – $100k
33.3%
21.6%
33.8%
$100k – $200k
0.4%
4.0%
20.1%
Over $200k
0.0%
0.0%
4.4%
Range % of households Under $10k 13.3% $10k–$15k 9.0% $15k–$25k 29.7% $25k–$35k 11.8% $35k–$50k 11.5% $50k–$75k 10.0% $75k–$100k 2.9% $100k–$150k 10.4% $150k–$200k 1.4% Median income $23,625
Housing
Housing overview
Metric Value Median home value $151,300 Median rent / month $496 Owner occupied 58.8% Renter occupied 41.2% Vacant 31.4% Single-family detached 67.1% Large apartment buildings 3.9% Mobile homes 16.2% Median rooms 5.6 Avg household size (owned) 3.02
Year built
Era % 2020 or later 0.0% 2010–2019 0.5% 2000–2009 21.4% 1990–1999 6.6% 1980–1989 4.4% 1970–1979 25.8% 1960–1969 15.7% 1950–1959 6.9% 1940–1949 8.8% 1939 or earlier 9.8%
Bedrooms
Size % of units No bedroom (studio) 5.4% 1 bedroom 15.2% 2 bedrooms 17.9% 3 bedrooms 37.3% 4 bedrooms 21.9% 5+ bedrooms 2.2%
Vehicles per household
Vehicles % of households No vehicle 16.8% 1 vehicle 32.6% 2 vehicles 19.0% 3 or more 31.5%
Heating fuel
Fuel type % Electricity 56.3% Propane / LP gas 40.9% Wood 2.2% No fuel used 0.7%
Households & families
Household type Count % Married-couple family 120 43.0% Cohabiting couple 10 3.6% Male householder, no spouse 43 15.4% Female householder, no spouse 106 38.0% Households with children under 18 97 34.8% Households with seniors (65+) 146 52.3% Average household size 2.76
Marital status
Status Male Female Never married 36.6% 31.7% Married 51.6% 32.2% Separated 0.0% 1.5% Widowed 3.6% 19.0% Divorced 8.2% 15.7%
Education
Some college, no degree
11.6%
Graduate / professional
1.0%
Metric % HS diploma or higher 87.3% Bachelor's or higher 9.1%
School enrollment (ages 3–17)
Type Count % Nursery / preschool 25 19.1% Kindergarten 18 13.7% Elementary school 43 32.8% High school 22 16.8% College / grad school 23 17.6%
Employment
Industry of employment
Education & healthcare
20.5%
Arts, food & hospitality
11.2%
Agriculture & mining
8.8%
Transportation & utilities
8.4%
Finance & real estate
5.1%
Public administration
2.8%
Professional & management
2.3%
Occupation
Category % Management, business & arts 28.4% Service 16.3% Sales & office 26.0% Natural resources & construction 8.4% Production & transportation 20.9%
Employment type
Type % Private sector 67.0% Government 13.0% Self-employed 20.0% Unpaid family workers 0.0%
Commute
Method % Drive alone 85.6% Carpool 2.4% Public transit 0.0% Walk 8.6% Work from home 3.3% Other means 0.0% Avg commute (minutes) 8.7
Poverty
Married-couple families
45.0%
Female-led households
21.7%
Income support
Source % of households Social Security 48.0% Retirement income 3.6% Supplemental Security 5.7% Cash public assistance 1.8% Food stamps / SNAP 21.9%
Health indicators
Condition % Obesity 33.3% High blood pressure 42.0% High cholesterol 37.7% Diabetes 14.3% Heart disease 11.2% Stroke 5.5% Asthma 10.0% Arthritis 31.8% Kidney disease 4.7% Pulmonary disease 9.9% Cancer 9.2%
Behavior / access % Smoking 21.6% Binge drinking 16.8% No physical activity 27.5% Less than 7 hrs sleep 28.6% Depression 14.9% Fair or poor health 18.1% Poor mental health 11.5% Poor physical health 12.8% No health insurance 12.8% Visited doctor (checkup) 78.3% Visited dentist 60.3% Cholesterol screening 89.4% Teeth loss 20.6%
Veterans & disability
Veterans Count % Civilian veterans 38 5.7%
Disability % Any disability 15.5% Under 18 3.6% 18–64 years 5.2% 65 and over 51.4%
Health insurance coverage
Type % Private insurance 33.3% Public insurance 45.5% No insurance 26.9% Uninsured under 19 4.9%
Language & origin
Language spoken at home (age 5+)
Language Count % English only 753 90.0% Spanish 9 1.2% Other Indo-European 0 0.0% Asian & Pacific Islander 9 1.2% Other languages 0 0.0%
Place of birth & citizenship
Origin Count % Native born (US) 831 99.3% Born in same state 831 99.3% Born in different state 664 79.3% Foreign born 0 0.0% Naturalized citizen 6 0.7% Not a US citizen 6 100.0%
Ancestry
Ancestry Count % French 76 9.1% Polish 58 6.9% Italian 56 6.7%
Ancestry Count % English 39 4.7% Arab 19 2.3% German 6 0.7%
Technology access
Metric % of households Computer access 33.3% Internet access 87.5%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 57543
What city is ZIP code 57543 in?
ZIP code 57543 is primarily assigned to Kadoka, South Dakota.
What county is ZIP code 57543 in?
ZIP code 57543 falls within Jackson County, South Dakota.
What is the poverty rate in ZIP code 57543?
46% of residents in ZIP code 57543 live below the poverty line, above the national average.
Does ZIP code 57543 have an older population?
27% of residents in ZIP code 57543 are 65 or older, above the national average of ~17%.
How educated is the population of ZIP code 57543?
9% 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 57543 have a large retiree population?
48% of households in ZIP code 57543 receive Social Security income, suggesting a significant retiree or disability population.
What timezone is ZIP code 57543 in?
ZIP code 57543 observes the MST timezone.
Need the complete ZIP code database?
Download all 42,000+ US ZIP codes — Excel, CSV, or Access. Includes lat/lng, county FIPS & timezone.
Download database →
