Dewey County, South Dakota Population 2018

Dewey County, South Dakota's estimated population is 5,835 with a growth rate of 3.24% in the past year according to the most recent United States census data. Dewey County, South Dakota is the 30th largest county in South Dakota.

Year Population Growth Growth Rate
20175,8351833.24%
20165,652-122-2.11%
20165,774761.33%
20155,698380.67%
20145,660801.43%
20135,580490.89%
20125,5311332.46%
20115,398721.35%
20105,326-197-3.57%
19905,5231572.93%
19805,3661963.79%
19705,170-87-1.65%
19605,2573416.94%
19504,916-793-13.89%
19405,709-767-11.84%
19306,4761,67434.86%
19204,8023,657319.39%
19101,1451,0992389.13%
1880460.00%

Dewey County, South Dakota Population Growth

Population Data via

Population by Race

Race Population
American Indian and Alaska Native4,331
White1,178
Two or More Races135
Black or African American8

Race Data via US Census (2016 ACS 5-Year Survey)

Dewey County, South Dakota Population Pyramid 2018

0%2%4%6%8%10%12% Male Population0%2%4%6%8%10%12% Female Population80757065605550454035302520151050

Data via US Census (2016 ACS 5-Year Survey): Table S0101

Dewey County, South Dakota Median Age

28.5


Total

27


Male

29.6


Female

Dewey County, South Dakota Adults

There are 3,662 adults, (560 of which are seniors) in Dewey County, South Dakota.

Dewey County, South Dakota Age Dependency

82

Age Dependency Ratio

18

Old Age Dependency Ratio

64

Child Dependency Ratio

Dewey County, South Dakota Sex Ratio

Female

2,868

50.74%

Male

2,784

49.26%

Dewey County, South Dakota Households and Families

Dewey County, South Dakota Renter vs Owner Occupied by Household Type

Dewey County, South Dakota Household Types

Type Owner Renter
Male77.3%22.7%
Married70.6%29.4%
All59.7%40.3%
Non Family51.4%48.6%
Female44.6%55.4%

59.7%

Rate of Home Ownership

Dewey County, South Dakota Households by Type

Type Count Average Size Owned
All1,6513.3859.7
Married6534.0270.6
Non Family5561.1851.4
Female3145.2444.6
Male1285.1877.3

4.38

Average Family Size

3.38

Average Household Size

8.6%

Unmarried (Opposite Sex)

0.2%

Unmarried (Same Sex)

Dewey County, South Dakota Households

Dewey County, South Dakota Education

Dewey County, South Dakota Educational Attainment by Sex (over 25)

Education Attained Count Percentage
Less Than 9th Grade882.86%
9th to 12th Grade37612.22%
High School Graduate1,13736.96%
Some College69622.63%
Associates Degree34611.25%
Bachelors Degree31610.27%
Graduate Degree1173.80%

Dewey County, South Dakota Educational Attainment by Race

Name Total High School Bachelors
Native American2,0911,720218
White919830200
Multiple Races585410
Black885
Hispanic222

The highest rate of high school graduation is among black people with a rate of 100.00%.

The highest rate of bachelors degrees is among black people with a rate of 100.00%.

Dewey County, South Dakota Earnings by Educational Attainment

Name Average Male Female
Overall$30,252$30,714$29,704
Less Than High School$17,188$11,875$20,750
High School Grad$26,630$27,734$25,313
Some College$30,313$33,289$26,810
Bachelors Degree$40,761$40,833$40,735
Graduate Degree$55,938$67,083$51,705

$30,252

Average Earnings

$30,714

Average Male

$29,704

Average Female

Dewey County, South Dakota Language

Dewey County, South Dakota Language by Age

Dewey County, South Dakota Language

87.29% of Dewey County, South Dakota residents speak only English, while 12.71% speak other languages. The largest non-English language is Other, which is spoken by 11.80% of the population.

Dewey County, South Dakota Poverty

Dewey County, South Dakota Poverty by Race

Name Total In Poverty Poverty Rate
Native4,2991,43733.43%
White1,155796.84%
Multiple1352921.48%
Hispanic571831.58%

27.60%

Overall Poverty Rate

26.27%

Male Poverty Rate

28.89%

Female Poverty Rate

Poverty in Dewey County, South Dakota

The race most likely to be in poverty in Dewey County, South Dakota is Native, with 33.43% below the poverty level.

The race least likely to be in poverty in Dewey County, South Dakota is White, with 6.84% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.64%. Among those working part-time, it was 20.73%, and for those that did not work, the poverty rate was 47.17%.

Dewey County, South Dakota Poverty Rate by Education

Name Poverty
Less Than High School51.19%
High School28.86%
Some College19.87%
Bachelors or Greater6.05%

Dewey County, South Dakota Poverty Rate by Employment Status and Sex

Name Poverty
Female Unemployed56.32%
Male Unemployed45.41%
Female Employed9.33%
Male Employed7.65%

Dewey County, South Dakota Income

Dewey County, South Dakota Income by Household Type

Name Median Mean
Households$40,585$52,442
Families$47,674$60,527
Married Families$62,875$
Non Families$24,318$34,338

Dewey County, South Dakota Marital Status

Dewey County, South Dakota Marital Status

Marriage Rates

36.7%

Overall Marriage Rate

36.0%

Male Marriage Rate

37.4%

Female Marriage Rate

Dewey County, South Dakota Married by Age and Sex

Dewey County, South Dakota Marriage

The age group where males are most likely to be married is Over65, while the female age group most likely to be married is 55To64.

Dewey County, South Dakota Marital Status by Race

Dewey County, South Dakota Veterans

Dewey County, South Dakota Veterans by War

325

Number of Veterans

281

Male Veterans

44

Female Veterans

Name Veterans
Vietnam99
First Gulf War51
Second Gulf War46
Korea22
World War II17

Dewey County, South Dakota Veterans by Age

Name Veterans
35 to 5475
75+67
55 to 6467
65 to 7461
18 to 3455

Dewey County, South Dakota Veterans by Race

Name Veterans % of Total
Indian1967.56%
White11811.85%
2 or More1115.94%

Dewey County, South Dakota Veterans by Education

17.85%

Veteran Poverty Rate

24.00%

Veteran Disability Rate

Dewey County, South Dakota Employment Status

Dewey County, South Dakota Employment by Age

66.9%

Labor Force Participation

50.5%

Employment Rate

24.6%

Unemployment Rate

Dewey County, South Dakota Employment by Race

Dewey County, South Dakota Employment by Education

Population of Cities in Dewey County, South Dakota

City 2010 Census 2016 Estimated Growth Growth Rate
Eagle Butte 13101349392.98%
Timber Lake4434894610.38%
Isabel1351521712.59%
Data Sources
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990