Onaka ZIP Codes — Faulk County, SD

There is one unique ZIP code in Onaka, South Dakota and it is 57466. Area code: 605.
1
ZIP codes
137.26
sq mi land
5.82
sq mi water
605
area code
Onaka, SD ZIP code map

About Onaka, SD

Onaka, South Dakota, is a small yet distinct community located within Faulk County. It is primarily known for its rural charm and tranquil atmosphere, offering a glimpse into the quieter side of life in America. With its single ZIP code of 57466, Onaka embodies the characteristics of a close-knit community where residents often know one another.

Location & geography

Onaka is situated in the north-central portion of South Dakota, surrounded by picturesque landscapes. The city covers a land area of 137.26 square miles, with an additional 5.82 square miles of water, providing a mix of terrain that includes both grasslands and water bodies. Nearby cities include Faulkton, located approximately 12 miles to the southwest, and Redfield, about 30 miles to the east, both offering additional amenities and services.

Community & economy

The character of Onaka is reflective of the traditional Midwestern values that emphasize community spirit and resilience. Agriculture plays a pivotal role in the local economy, with farms and ranches dominating the landscape and providing employment for many residents. Daily life in Onaka is characterized by a strong sense of community involvement, with local events and gatherings often centered around agricultural fairs and seasonal celebrations.

Transportation

Onaka is easily accessible via South Dakota Highway 20, which runs through the region and connects to other major highways. The nearest airport for commercial flights is approximately 30 miles away in Redfield, providing access to larger urban areas. Public transportation options are limited, but local services and community initiatives often support residents' mobility needs.

History

Onaka was established in the early 20th century and has since served as a hub for local agriculture and ranching. The town's economy has primarily focused on farming, with grain production being a critical component of its identity. Notable events in Onaka's history involve the resilience of its residents during economic changes, showcasing the community's ability to adapt and thrive.

Did you know?

A surprising fact about Onaka is that it holds onto its history through annual community events that celebrate its agricultural roots. This commitment to tradition gives residents a sense of pride and connection to their heritage.

ZIP codes for Onaka, SD (1)
ZIP code City County Map
57466 Onaka Faulk View map

Demographics & statistics

190
Population
60.3
Median age
$46,691
Median household income
$27,883
Per capita income
$0
Median home value
$0
Median monthly rent
85.2%
Home ownership
27.4%
Poverty rate
0.0%
Unemployment
81
Housing units
26.1%
Bachelor's or higher

Age distribution

Male Female
13
Under 5
13
5
5–9
5
3
10–14
3
3
15–19
3
12
25–34
13
7
35–44
8
2
45–54
3
0
55–59
1
13
60–64
14
14
65–74
14
16
75–84
18
3
85+
4
← Male
Female →

Age summary

GroupCount%
Under 184825.3%
18 and over14274.7%
65 and over6936.3%
Median age60.3 years

Race & ethnicity

White 100%
GroupCount%
White190100%

Household income

Under $10k 9.9%
$10k–$15k 8.6%
$15k–$25k 13.6%
$25k–$35k 3.7%
$35k–$50k 21.0%
$50k–$75k 12.3%
$75k–$100k 8.6%
$100k–$150k 8.6%
$150k–$200k 13.6%
Range% of households
Under $10k9.9%
$10k–$15k8.6%
$15k–$25k13.6%
$25k–$35k3.7%
$35k–$50k21.0%
$50k–$75k12.3%
$75k–$100k8.6%
$100k–$150k8.6%
$150k–$200k13.6%
Median income$46,691

Housing

Home values

Under $50k 56.5%
$50k–$100k 2.9%
$100k–$150k 13.0%
$150k–$200k 10.1%
$200k–$300k 4.3%
$300k–$500k 13.0%

Housing overview

MetricValue
Median home value$0
Median rent / month$0
Owner occupied85.2%
Renter occupied14.8%
Vacant12.9%
Single-family detached96.8%
Large apartment buildings0.0%
Mobile homes3.2%
Median rooms7.3
Avg household size (owned)2.48

Year built

Era%
2020 or later0.0%
2010–20194.3%
2000–20090.0%
1990–19993.2%
1980–19890.0%
1970–197932.3%
1960–196921.5%
1950–195922.6%
1940–19498.6%
1939 or earlier7.5%

Bedrooms

Size% of units
No bedroom (studio)2.2%
1 bedroom0.0%
2 bedrooms17.2%
3 bedrooms33.3%
4 bedrooms36.6%
5+ bedrooms10.8%

Vehicles per household

Vehicles% of households
No vehicle2.5%
1 vehicle17.3%
2 vehicles27.2%
3 or more53.1%

Heating fuel

Fuel type%
Electricity13.6%
Propane / LP gas65.4%
Fuel oil17.3%

Households & families

Household typeCount%
Married-couple family6276.5%
Cohabiting couple00.0%
Male householder, no spouse89.9%
Female householder, no spouse1113.6%
Households with children under 181417.3%
Households with seniors (65+)4960.5%
Average household size2.35

Marital status

StatusMaleFemale
Never married14.1%4.3%
Married85.9%80.0%
Separated0.0%0.0%
Widowed0.0%15.7%
Divorced0.0%0.0%

Education

Less than 9th grade 6.3%
Some HS, no diploma 0.0%
HS graduate 28.2%
Some college, no degree 17.6%
Associate's degree 21.8%
Bachelor's degree 26.1%
Graduate / professional 0.0%
Metric%
HS diploma or higher93.7%
Bachelor's or higher26.1%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool519.2%
Kindergarten00.0%
Elementary school1142.3%
High school1038.5%
College / grad school00.0%

Employment

Industry of employment

Agriculture & mining 45.7%
Education & healthcare 17.1%
Transportation & utilities 15.7%
Construction 8.6%
Retail trade 4.3%
Public administration 4.3%
Manufacturing 2.9%
Finance & real estate 1.4%

Occupation

Category%
Management, business & arts30.0%
Service14.3%
Sales & office21.4%
Natural resources & construction27.1%
Production & transportation7.1%

Employment type

Type%
Private sector45.7%
Government20.0%
Self-employed34.3%
Unpaid family workers0.0%

Commute

Method%
Drive alone38.6%
Carpool25.7%
Public transit0.0%
Walk15.7%
Other means0.0%
Avg commute (minutes)18.2

Poverty

All people 27.4%
Under 18 years 58.3%
18 and over 16.9%
Married-couple families 11.3%
Female-led households 0.0%

Income support

Source% of households
Social Security48.1%
Retirement income33.3%
Supplemental Security0.0%
Cash public assistance3.7%
Food stamps / SNAP8.6%

Health indicators

Condition%
High blood pressure38.3%
High cholesterol34.9%
Heart disease9.8%
Stroke4.2%
Asthma8.3%
Arthritis29.6%
Kidney disease3.8%
Pulmonary disease7.4%
Cancer9.7%
Behavior / access%
Binge drinking16.6%
No physical activity25.1%
Less than 7 hrs sleep27.9%
Fair or poor health13.1%
Poor mental health9.0%
Poor physical health10.0%
No health insurance10.8%
Visited doctor (checkup)78.1%
Visited dentist68.4%
Cholesterol screening93.0%
Teeth loss14.6%

Veterans & disability

VeteransCount%
Civilian veterans85.6%
Disability%
Any disability18.4%
Under 180.0%
18–64 years0.0%
65 and over50.7%

Health insurance coverage

Type%
Private insurance64.2%
Public insurance57.4%
Uninsured under 190.0%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only16486.3%
Spanish74.3%
Other Indo-European00.0%
Asian & Pacific Islander74.3%
Other languages00.0%

Place of birth & citizenship

OriginCount%
Native born (US)190100.0%
Born in same state190100.0%
Born in different state15280.0%
Foreign born00.0%
Naturalized citizen00.0%
Not a US citizen00.0%

Ancestry

AncestryCount%
Polish2211.6%
Italian73.7%
AncestryCount%
French10.5%

Technology access

Metric% of households
Computer access42.6%
Internet access86.4%

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

Frequently asked questions
What ZIP codes does Onaka, SD have?
Onaka, SD has one ZIP code: 57466. Each ZIP code serves a distinct delivery area within the city and surrounding region.
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