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COUNTY · 2020 ACS

Dewey County

South Dakota · 5,239 residents · 2,302.376 sq mi
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The short version

Dewey County has notably lower household income than the US average, with a median household income of $45,859. Population has declined 12% since 2000. 17% of adults hold a bachelor's degree or higher, below the national rate of 33%. Median home value has more than doubled since 2000, reaching $65,900. At a median age of 32.4, residents skew younger than the country as a whole.

At a glance
Lower income
below the US median
US median: $66,278
Younger
median age 32.4
US median: 38.8
Less educated
17% hold a bachelor's degree
US average: 33%
Less affordable
home values up 33%, inflation adjusted
US median home: $265,253
Section 01

Population & growth

Total population
5,239
−12%since 2000
from 5,972 in 2000
1990 – 2025
Population density
2 / sq mi
−12%since 2000
from 3 / sq mi in 2000
US average: 280
Median age
32.4
+22%since 2000
from 26.5 in 2000
US average: 38.8
Population, 1990 – 2024
5K5K6K6K6K1990201020202024Dewey County
20245K
1990201020202024
Section 02

Income & economy

Median household income
$45,859
+31%inflation adjusted, since 2000
from $23,272 in 2000
US average: $66,278
1990 – 2024
Per capita income
$17,387
+88%since 2000
from $9,251 in 2000
US average: $35,364
Households earning $100K+
24.0%
+4.8 ptssince 2009
from 19.2% in 2009
US average: 43.9%
Poverty rate
35.0%
+1.5 ptssince 2000
from 33.6% in 2000
US average: 12.8%
Workforce by industry, 2020
Agriculture, forestry, fishing11%
US avg: 1.7%
Construction11%
US avg: 1.2%
Information9.1%
US avg: 11.1%
Wholesale trade7.4%
US avg: 6.7%
Other services3.4%
US avg: 6.6%
Finance & insurance3.3%
US avg: 5.5%
Retail trade2.8%
US avg: 10%
Arts, entertainment, food2.5%
US avg: 2%
Professional, scientific, technical2.4%
US avg: 4.7%
Public administration2%
US avg: 4.7%
Transportation & warehousing1.6%
US avg: 2.5%
Education & health services0.8%
US avg: 0.8%
Manufacturing0%
US avg: 0.5%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

Median home value
$65,900
+33%inflation adjusted, since 2000
from $32,900 in 2000
US average: $265,253
1990 – 2024
Median gross rent
$586
+27%inflation adjusted, since 2000
from $308 in 2000
US average: $1,124
Owner-occupied
58.4%
+3.1 ptssince 2000
from 55.2% in 2000
41.6% rent
Afford Score
1.4
+2%since 2000
from 1.4 in 2000
1990 – 2024
RELATED:See current rent listings in Dewey County on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic24.1%(1,438)
Black0%(2)
Hispanic / Latino0.9%(51)
Asian0.1%(7)
Other0%
Diversity Score9.7%(577)
Segregation Score0%
2020
White, non-Hispanic16.2%(849)
Black0.2%(9)
Hispanic / Latino1.5%(81)
Asian0.1%(6)
Other76%(3,981)
Diversity Score39.6%(2,075)
Segregation Score38.2%(1,999)
Diversity Score
40
+310%since 2000
from 10 in 2000
1990 – 2024
Segregation Score
38
Section 05

Education

Bachelor's degree or higher
17.2%
+5.0 ptssince 2000
from 12.2% in 2000
US average: 32.9%
High school or higher
83.2%
+5.8 ptssince 2000
from 77.4% in 2000
US average: 88.5%
Graduate degree
5.1%
+1.8 ptssince 2000
from 3.3% in 2000
US average: 12.7%
Section 06

Commute & transportation

Average commute
16.2 min
+20%since 2000
from 13.5 min in 2000
US average: 26.9
Drive alone to work
75.1%
+16.0 ptssince 2009
from 59.1% in 2009
US average: 75.1%
No vehicle available
6.6%
−1.7 ptssince 2009
from 8.4% in 2009
US average: 8.4%
Section 07

Work & employment

Unemployment rate
21.4%
+1.1 ptssince 2011
from 20.3% in 2011
US average: 5.4%
Labor force participation
67.3%
+3.6 ptssince 2011
from 63.7% in 2011
US average: 63.4%
Management & professional
43.2%
−22.6 ptssince 2009
from 65.7% in 2009
US average: 39.3%
Section 08

People & community

Male
51.0%
+2.2 ptssince 2009
from 48.8% in 2009
Female
49.0%
−2.2 ptssince 2009
from 51.2% in 2009
Foreign born
1.0%
+0.9 ptssince 2009
from 0.0% in 2009
US average: 13.5%
Uninsured
25.8%
−39.9 ptssince 2013
from 65.7% in 2013
US average: 8.8%
Drill deeper

Places similar to Dewey County

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Pop 5,028
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Pop 5,509
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Pop 5,812
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Places similar to Dewey County
Head to head

Compare Dewey County to nearby counties

DEWEY COUNTY VS
Corson County
Income$46,406+1%
Home value$69,800+6%
Population3,781−30%
SEE FULL COMPARISON →
DEWEY COUNTY VS
Ziebach County
Income$53,958+18%
Home value$99,600+51%
Population2,389−56%
SEE FULL COMPARISON →
DEWEY COUNTY VS
Potter County
Income$72,045+57%
Home value$121,300+84%
Population2,377−56%
SEE FULL COMPARISON →
DEWEY COUNTY VS
Walworth County
Income$65,026+42%
Home value$136,600+107%
Population5,217−4%
SEE FULL COMPARISON →
Frequently asked

How many people live in Dewey County, South Dakota?

Dewey County, South Dakota has about 5,239 residents according to the 2020 American Community Survey.

What is the median household income in Dewey County, South Dakota?

The typical household in Dewey County, South Dakota earns about $45,859 a year. Half of households make more than that, and half make less.

Is Dewey County, South Dakota expensive?

In Dewey County, South Dakota, the median home is worth about $65,900, and the typical rent is about $586 a month.

How educated are people in Dewey County, South Dakota?

About 17.2% of adults age 25 and over in Dewey County, South Dakota hold a bachelor's degree or higher.

What is the poverty rate in Dewey County, South Dakota?

About 35.0% of people in Dewey County, South Dakota live below the federal poverty line.

Has Dewey County, South Dakota grown since 1990?

Yes, Dewey County, South Dakota has shrunk since 1990. The population has lost about 284 residents, a change of about -5 percent over that period.

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Explore from here

2 census tracts
Census Tract 9417Census Tract 9415
7 ZIP codes
ZIP 57625ZIP 57601ZIP 57656ZIP 57652ZIP 57661ZIP 57636ZIP 57630
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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