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CITY

Onaka

South Dakota · 14 residents (2025 est.) · 0.259 sq mi
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The short version

Population has fallen 17% since 2000, a loss of 5 residents. 45% of adults hold a bachelor's degree or higher. At a median age of 13.5, residents skew younger than the country as a whole. The poverty rate of 100.0% is well above the national figure.

At a glance
Younger
median age 13.5
US median: 38.9
More educated
45% hold a bachelor's degree
US average: 36%
Owner-heavy
100% owner-occupied
US average: 65%
Section 01

Population & growth

Total population
25
−17%since 2000
from 30 in 2000
1990 – 2025
Population density
97 / sq mi
−17%since 2000
from 116 / sq mi in 2000
US average: 281
Median age
13.5
−78%since 2000
from 60.5 in 2000
US average: 38.9

PEP 2025 EST:14 residents (Census Bureau Vintage 2025, released March 2026)

Population, 1990 – 2024
0163248651990201020202024Onaka
202425
1990201020202024
Section 02

Income & economy

Per capita income
$3,316
−82%since 2000
from $18,559 in 2000
US average: $44,673
Households earning $100K+
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 53.3%
Poverty rate
100.0%
+93.1 ptssince 2000
from 6.9% in 2000
US average: 12.5%
Income inequality (Gini)
0.110
−72%since 2010
from 0.389 in 2010
US average: 0.476
Workforce by industry, 2024
Wholesale trade62.5%
US avg: 6.9%
Agriculture, forestry, fishing37.5%
US avg: 1.6%
Construction37.5%
US avg: 1.2%
Manufacturing0%
US avg: 0.4%
Retail trade0%
US avg: 9.9%
Transportation & warehousing0%
US avg: 2.2%
Information0%
US avg: 10.8%
Finance & insurance0%
US avg: 5.9%
Professional, scientific, technical0%
US avg: 5.1%
Education & health services0%
US avg: 0.9%
Arts, entertainment, food0%
US avg: 1.9%
Other services0%
US avg: 6.7%
Public administration0%
US avg: 4.8%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

Owner-occupied
100.0%
+22.2 ptssince 2000
from 77.8% in 2000
0.0% rent
Vacancy rate
33.3%
+9.2 ptssince 2009
from 24.1% in 2009
US average: 10.0%
Owner cost-burdened
37.5%
+0.7 ptssince 2009
from 36.8% in 2009
US average: 22.9%
RELATED:See current rent listings in Onaka on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic100%(30)
Black0%(0)
Hispanic / Latino0%(0)
Asian0%(0)
Other0%
Diversity Score0%(0)
2024
White, non-Hispanic100%(25)
Black0%(0)
Hispanic / Latino0%(0)
Asian0%(0)
Other0%(0)
Diversity Score0%(0)
Diversity Score
0
from 0 in 2000
1990 – 2024
Section 05

Education

Bachelor's degree or higher
45.5%
+45.5 ptssince 2000
from 0.0% in 2000
US average: 35.6%
High school or higher
100.0%
+22.2 ptssince 2000
from 77.8% in 2000
US average: 89.6%
Graduate degree
0.0%
Unchangedsince 2000
from 0.0% in 2000
US average: 14.0%
Section 06

Commute & transportation

Drive alone to work
0.0%
−18.8 ptssince 2009
from 18.8% in 2009
US average: 68.9%
Carpooled to work
37.5%
+37.5 ptssince 2009
from 0.0% in 2009
US average: 8.5%
Public transit
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 3.2%
Worked from home
62.5%
+12.5 ptssince 2009
from 50.0% in 2009
US average: 15.0%
Walked to work
0.0%
−31.3 ptssince 2009
from 31.3% in 2009
US average: 2.4%
Biked to work
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 0.4%
No vehicle available
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
0.0%
Unchangedsince 2011
from 0.0% in 2011
US average: 5.2%
Labor force participation
72.7%
+13.9 ptssince 2011
from 58.8% in 2011
US average: 63.5%
Self-employed
0.0%
−25.0 ptssince 2009
from 25.0% in 2009
US average: 13.1%
Management & professional
0.0%
−25.0 ptssince 2009
from 25.0% in 2009
US average: 42.5%
Section 08

People & community

Male
44.0%
+1.1 ptssince 2009
from 42.9% in 2009
Female
56.0%
−1.1 ptssince 2009
from 57.1% in 2009
Foreign born
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 14.1%
Veterans
0.0%
−42.9 ptssince 2009
from 42.9% in 2009
US average: 6.2%
With a disability
0.0%
−5.6 ptssince 2012
from 5.6% in 2012
US average: 13.3%
Uninsured
0.0%
−69.2 ptssince 2013
from 69.2% in 2013
US average: 8.4%
Broadband at home
100.0%
+57.1 ptssince 2017
from 42.9% in 2017
US average: 91.0%
English only at home
100.0%
Unchangedsince 2016
from 100.0% in 2016
US average: 77.7%
Spanish at home
0.0%
Unchangedsince 2016
from 0.0% in 2016
US average: 13.6%
Drill deeper

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Frequently asked

How many people live in Onaka, South Dakota?

Onaka, South Dakota has about 25 residents according to the 2024 American Community Survey.

How educated are people in Onaka, South Dakota?

About 45.5% of adults age 25 and over in Onaka, South Dakota hold a bachelor's degree or higher.

What is the poverty rate in Onaka, South Dakota?

About 100.0% of people in Onaka, South Dakota live below the federal poverty line.

Has Onaka, South Dakota grown since 1990?

Yes, Onaka, South Dakota has shrunk since 1990. The population has lost about 34 residents, a change of about -58 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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