57564 ZIP Code — Onida, SD

Sully County, South Dakota

ZIP code 57564 is located in Onida, South Dakota, within Sully County. It covers approximately 439.18 square miles and serves a population of 797 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 605.

About ZIP code 57564

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $187,500. Owner-occupancy is high at 90%, well above the national average.

Median household income is $69,211. 34% 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 17 minutes is near the national average.

Educational attainment is near the national average, with 23% of residents holding a bachelor's degree or higher.

Overall, ZIP code 57564 reflects a community defined by high homeownership and a significant Social Security-dependent population.

797
population
439.18
sq mi land
Standard
ZIP type
Central (CT)
timezone
57564 ZIP code map
Cities in ZIP code 57564

Below are the cities the US Postal Service accepts for ZIP code 57564. Using any city not on this list may result in mail delivery delays.

City Status
Onida Acceptable
Onida Preferred
Nearby ZIP codes
57520 Agar (11 mi) 57501 Pierre (14.8 mi) 57522 Blunt (18.4 mi)
Demographics updated 05/2026
Population
Total population 797
Population density 2 / sq mi
State FIPS 46
County FIPS 119
Geography
Land area 439.18 sq mi
Water area 3.16 sq mi
Latitude 44.7225
Longitude -100.0608
Timezone Central (CT)
Area code 605
Total population by age
Gender
Race & ethnicity
Economics updated 05/2026
Household income
Income range This ZIP County avg State avg
Under $50k 40.8% 45.4% 41.7%
$50k – $100k 34.2% 33.2% 33.8%
$100k – $200k 20.8% 17.9% 20.1%
Over $200k 4.2% 3.6% 4.4%

Demographics & statistics

797
Population
2
People per sq mi
53.2
Median age
$69,211
Median household income
$40,648
Per capita income
$187,500
Median home value
$982
Median monthly rent
90.3%
Home ownership
10.1%
Poverty rate
0.0%
Unemployment
438
Housing units
22.6%
Bachelor's or higher

Age distribution

Male Female
24
Under 5
23
25
5–9
24
28
10–14
27
24
15–19
22
10
20–24
10
33
25–34
32
32
35–44
30
51
45–54
48
44
55–59
41
47
60–64
44
50
65–74
48
35
75–84
33
6
85+
6
← Male
Female →

Age summary

GroupCount%
Under 1819224.1%
18 and over60575.9%
65 and over17822.3%
Median age53.2 years

Race & ethnicity

White 95.8%
Two or more races 2.6%
Hispanic or Latino 1.6%
GroupCount%
White77695.8%
Two or more races212.6%
Hispanic or Latino131.6%

Household income

Income range This ZIP County avg State avg
Under $50k 40.8% 45.4% 41.7%
$50k – $100k 34.2% 33.2% 33.8%
$100k – $200k 20.8% 17.9% 20.1%
Over $200k 4.2% 3.6% 4.4%
Under $10k 2.3%
$10k–$15k 5.1%
$15k–$25k 5.1%
$25k–$35k 6.3%
$35k–$50k 10.2%
$50k–$75k 24.7%
$75k–$100k 13.1%
$100k–$150k 21.3%
$150k–$200k 2.0%
$200k+ 9.9%
Range% of households
Under $10k2.3%
$10k–$15k5.1%
$15k–$25k5.1%
$25k–$35k6.3%
$35k–$50k10.2%
$50k–$75k24.7%
$75k–$100k13.1%
$100k–$150k21.3%
$150k–$200k2.0%
$200k+9.9%
Median income$69,211

Housing

Home values

Under $50k 14.2%
$50k–$100k 8.8%
$100k–$150k 18.2%
$150k–$200k 11.9%
$200k–$300k 20.1%
$300k–$500k 21.7%
$500k–$1M 5.0%

Housing overview

MetricValue
Median home value$187,500
Median rent / month$982
Owner occupied90.3%
Renter occupied9.7%
Vacant25.4%
Single-family detached85.8%
Large apartment buildings3.6%
Mobile homes8.7%
Median rooms6.3
Avg household size (owned)2.22

Year built

Era%
2020 or later0.0%
2010–20195.9%
2000–20099.5%
1990–19998.5%
1980–19894.4%
1970–197921.8%
1960–196911.7%
1950–195913.1%
1940–19495.3%
1939 or earlier19.7%

Bedrooms

Size% of units
No bedroom (studio)0.0%
1 bedroom7.2%
2 bedrooms18.2%
3 bedrooms42.2%
4 bedrooms24.2%
5+ bedrooms8.3%

Vehicles per household

Vehicles% of households
No vehicle0.9%
1 vehicle17.9%
2 vehicles41.5%
3 or more39.8%

Heating fuel

Fuel type%
Utility gas31.3%
Electricity29.0%
Propane / LP gas33.8%
Fuel oil2.0%

Households & families

Household typeCount%
Married-couple family18953.7%
Cohabiting couple174.8%
Male householder, no spouse9226.1%
Female householder, no spouse5415.3%
Households with children under 186819.3%
Households with seniors (65+)12736.1%
Average household size2.26

Marital status

StatusMaleFemale
Never married24.2%16.8%
Married60.9%62.3%
Separated0.0%0.0%
Widowed2.1%10.8%
Divorced12.7%10.1%

Education

Less than 9th grade 0.7%
Some HS, no diploma 4.8%
HS graduate 37.2%
Some college, no degree 18.3%
Associate's degree 16.4%
Bachelor's degree 18.8%
Graduate / professional 3.8%
Metric%
HS diploma or higher94.5%
Bachelor's or higher22.6%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool3320.8%
Kindergarten63.8%
Elementary school7144.7%
High school4226.4%
College / grad school74.4%

Employment

Industry of employment

Agriculture & mining 22.0%
Education & healthcare 19.8%
Retail trade 14.7%
Public administration 9.3%
Construction 6.0%
Finance & real estate 5.6%
Transportation & utilities 4.7%
Arts, food & hospitality 4.2%
Manufacturing 3.8%
Wholesale trade 3.6%
Professional & management 3.1%
Other services 2.0%
Information 1.3%

Occupation

Category%
Management, business & arts40.7%
Service9.6%
Sales & office23.8%
Natural resources & construction14.7%
Production & transportation11.3%

Employment type

Type%
Private sector62.4%
Government19.3%
Self-employed17.3%
Unpaid family workers0.9%

Commute

Method%
Drive alone76.6%
Carpool8.0%
Public transit0.0%
Walk3.3%
Work from home10.0%
Other means2.0%
Avg commute (minutes)17.0

Poverty

All people 10.1%
Under 18 years 7.0%
18 and over 11.1%
Married-couple families 3.2%
Female-led households 28.6%

Income support

Source% of households
Social Security33.5%
Retirement income22.7%
Supplemental Security0.0%
Cash public assistance0.9%
Food stamps / SNAP3.7%

Health indicators

Condition%
Obesity34.0%
High blood pressure32.5%
High cholesterol31.2%
Diabetes9.4%
Heart disease7.2%
Stroke3.2%
Asthma8.7%
Arthritis24.9%
Kidney disease3.0%
Pulmonary disease6.1%
Cancer7.8%
Behavior / access%
Smoking17.3%
Binge drinking19.7%
No physical activity22.3%
Less than 7 hrs sleep28.2%
Depression15.0%
Fair or poor health11.0%
Poor mental health10.2%
Poor physical health8.9%
No health insurance10.7%
Visited doctor (checkup)75.6%
Visited dentist69.3%
Cholesterol screening90.3%
Teeth loss12.3%

Veterans & disability

VeteransCount%
Civilian veterans345.6%
Disability%
Any disability8.3%
Under 181.6%
18–64 years6.6%
65 and over19.7%

Health insurance coverage

Type%
Private insurance89.0%
Public insurance26.6%
No insurance3.3%
Uninsured under 195.1%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only75094.1%
Spanish00.0%
Other Indo-European00.0%
Asian & Pacific Islander00.0%
Other languages00.0%

Place of birth & citizenship

OriginCount%
Native born (US)79599.7%
Born in same state79599.7%
Born in different state64180.4%
Foreign born00.0%
Naturalized citizen20.3%
Not a US citizen00.0%

Ancestry

AncestryCount%
Polish10212.8%
Italian9211.5%
French8310.4%
Arab668.3%
AncestryCount%
Dutch111.4%
German30.4%
Norwegian30.4%
English20.3%

Technology access

Metric% of households
Computer access44.2%
Internet access91.8%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 57564

What city is ZIP code 57564 in?

ZIP code 57564 is primarily assigned to Onida, South Dakota.

What county is ZIP code 57564 in?

ZIP code 57564 falls within Sully County, South Dakota.

Is ZIP code 57564 mostly owner-occupied?

90% of occupied units in ZIP code 57564 are owner-occupied, well above the national average.

What is the typical home value in ZIP code 57564?

The median home value in ZIP code 57564 is $187,500.

What is the population of ZIP code 57564?

ZIP code 57564 has an estimated population of 797 residents, with a density of 2 people per square mile.

What is the median household income in ZIP code 57564?

The median household income in ZIP code 57564 is $69,211, below the national median of ~$75,000.

What timezone is ZIP code 57564 in?

ZIP code 57564 observes the CST timezone.

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