Dewey County, South Dakota

9 cities & places have their primary county here.

Population: 5,230
Median household income: $57,928
Median home value: $75,400

Home to 5,230 residents, Dewey County is one of South Dakota's counties. 9 cities and places have their primary county here. At $57,928, its median household income sits below South Dakota's $72,421.

From 2019 to 2023, Dewey County's population declined 10.3% from 5,833 to 5,230, while its median household income rose 22.0% from $47,475 to $57,928.

72.1% of homes are single-family detached houses. The typical home was built around 1977.

Demographics

ACS 2019–2023

Population: 5,230
Median age: 27.6 yrs
Median household income: $57,928
Median home value: $75,400
Median gross rent: $714
Housing units: 1,927
Homeownership rate: 61.5%
Bachelor's degree or higher: 17.3%
Unemployment rate: 14.6%

Trends

ACS 5-year · 2019–2023

Population

5,8335,230

Median household income

$47,475$57,928

Median home value

$64,400$75,400

Median gross rent

$579$714

Year	Population	Median household income	Median home value	Median gross rent
2019	5,833	$47,475	$64,400	$579
2020	5,841	$45,859	$65,900	$586
2021	5,343	$46,087	$65,000	$601
2022	5,275	$55,077	$74,800	$670
2023	5,230	$57,928	$75,400	$714

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 511.0%

5 to 1726.6%

18 to 248.9%

25 to 3411.8%

35 to 4412.1%

45 to 548.7%

55 to 6411.0%

65 to 746.4%

75 and over3.5%

	Count	Share
Under 5	577	11.0%
5 to 17	1,391	26.6%
18 to 24	468	8.9%
25 to 34	618	11.8%
35 to 44	631	12.1%
45 to 54	453	8.7%
55 to 64	574	11.0%
65 to 74	333	6.4%
75 and over	185	3.5%

Race & ethnicity

	Count	Share
White (non-Hispanic)	1,056	20.2%
Black or African American	21	0.4%
American Indian & Alaska Native	3,898	74.5%
Asian	3	0.1%
Native Hawaiian & Pacific Islander	31	0.6%
Some other race	0	0.0%
Two or more races	142	2.7%
Hispanic or Latino (any race)	79	1.5%

Educational attainment (age 25+)

No high school diploma13.1%

High school graduate39.9%

Some college or associate's29.7%

Bachelor's degree11.7%

Graduate or professional degree5.6%

	Count	Share
No high school diploma	367	13.1%
High school graduate	1,114	39.9%
Some college or associate's	830	29.7%
Bachelor's degree	326	11.7%
Graduate or professional degree	157	5.6%

Commute to work

Mean travel time to work: 17 min

Drove alone70.5%

Carpooled8.6%

Public transit0.7%

Walked2.8%

Bicycle0.0%

Worked from home14.5%

Other means2.9%

How workers get to work

	Count	Share
Drove alone	1,345	70.5%
Carpooled	164	8.6%
Public transit	13	0.7%
Walked	54	2.8%
Bicycle	0	0.0%
Worked from home	277	14.5%
Other means	56	2.9%

Travel time

	Count	Share
Under 15 min	1,102	67.5%
15 to 29 min	199	12.2%
30 to 44 min	149	9.1%
45 to 59 min	109	6.7%
60+ min	73	4.5%

Households

Average household size: 3.07
Poverty rate: 32.3% (1,661 of 5,139)

	Count	Share
Family households	1,171	69.7%
Nonfamily households	510	30.3%

Housing

Median year structure built: 1977

Occupancy

	Count	Share
Occupied	1,681	87.2%
Vacant	246	12.8%

Tenure (of occupied units)

	Count	Share
Owner-occupied	1,033	61.5%
Renter-occupied	648	38.5%

1-unit, detached72.1%

1-unit, attached2.3%

2 to 4 units3.0%

5 to 19 units3.0%

20 or more units1.8%

Mobile home & other17.9%

Units in structure

	Count	Share
1-unit, detached	1,389	72.1%
1-unit, attached	45	2.3%
2 to 4 units	57	3.0%
5 to 19 units	57	3.0%
20 or more units	34	1.8%
Mobile home & other	345	17.9%

Geography

County GEOID: 46041
State: South Dakota
Land area: 2,302 sq mi
Water area: 143 sq mi
Center point: 45.1480, -100.8380