Dewey County, South Dakota Population 2018

Dewey County, South Dakota's estimated population is 5,835 with a growth rate of 1.06% 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
20175,709-126-2.16%
20175,835611.06%
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 Native4,437
White1,166
Two or More Races93
Black or African American7
Asian4
Some Other Race2

Data via US Census (2017 ACS 5-Year Survey): Table B03002

Dewey County, South Dakota Population Pyramid 2018

100200300400 Male Population100200300400 Female Population80757065605550454035302520151050

Data via US Census (2017 ACS 5-Year Survey): Table S0101

Dewey County, South Dakota Median Age

28


Total

26.9


Male

29.4


Female

Dewey County, South Dakota Adults

There are 3,673 adults, (549 of whom are seniors) in Dewey County, South Dakota.

Dewey County, South Dakota Age Dependency

82.7

Age Dependency Ratio

17.6

Old Age Dependency Ratio

65.2

Child Dependency Ratio

Dewey County, South Dakota Sex Ratio

Female

2,886

50.55%

Male

2,823

49.45%

Dewey County, South Dakota Households and Families

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

Data via US Census (2017 ACS 5-Year Survey): Table S1101

Dewey County, South Dakota Household Types

Type Owner Renter
Male82.3%17.7%
Married68.3%31.7%
All58.4%41.6%
Non Family50.3%49.7%
Female43.6%56.4%

58.4%

Rate of Home Ownership

Dewey County, South Dakota Households by Type

Type Count Average Size Owned
All1,6483.4358.4
Married6564.0168.3
Non Family5171.1750.3
Female3515.2143.6
Male1244.7282.3

4.31

Average Family Size

3.43

Average Household Size

9.2%

Unmarried (Opposite Sex)

0.1%

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 Grade1023.29%
9th to 12th Grade37412.08%
High School Graduate1,12236.24%
Some College68622.16%
Associates Degree36011.63%
Bachelors Degree33010.66%
Graduate Degree1223.94%

Dewey County, South Dakota Educational Attainment by Race

Name Total High School Bachelors
Native American2,1361,749238
White904822200
Multiple Races393612
Hispanic1311
Black752
Asian44
Other Race2

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

The highest rate of bachelors degrees is among asian people with a rate of 30.77%.

Dewey County, South Dakota Earnings by Educational Attainment

Name Average Male Female
Overall$31,667$32,031$31,418
Less Than High School$20,313$19,583$21,875
High School Grad$27,279$29,844$26,450
Some College$30,678$33,798$26,359
Bachelors Degree$41,296$44,375$40,395
Graduate Degree$60,000$115,000$55,000

$31,667

Average Earnings

$32,031

Average Male

$31,418

Average Female

Dewey County, South Dakota Language

Dewey County, South Dakota Language by Age

Dewey County, South Dakota Language

85.88% of Dewey County, South Dakota residents speak only English, while 14.12% speak other languages. The largest non-English language is Other, which is spoken by 12.97% of the population.

Dewey County, South Dakota Poverty

Dewey County, South Dakota Poverty by Race

Name Total In Poverty Poverty Rate
Native4,3961,65837.72%
White1,144968.39%
Hispanic753648.00%
Multiple932021.51%
Other22100.00%

31.43%

Overall Poverty Rate

29.76%

Male Poverty Rate

33.05%

Female Poverty Rate

Poverty in Dewey County, South Dakota

The race most likely to be in poverty in Dewey County, South Dakota is Other, with 100.00% below the poverty level.

The race least likely to be in poverty in Dewey County, South Dakota is White, with 8.39% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 6.28%. Among those working part-time, it was 22.27%, and for those that did not work, the poverty rate was 51.50%.

Dewey County, South Dakota Poverty Rate by Education

Name Poverty
Less Than High School48.10%
High School33.87%
Some College22.75%
Bachelors or Greater4.70%

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

Name Poverty
Female Unemployed63.64%
Male Unemployed49.88%
Female Employed9.62%
Male Employed9.56%

Dewey County, South Dakota Income

Dewey County, South Dakota Income by Household Type

Name Median Mean
Households$41,190$56,035
Families$49,583$63,689
Married Families$69,000$
Non Families$24,952$35,748

Dewey County, South Dakota Marital Status

Dewey County, South Dakota Marital Status

Marriage Rates

36.3%

Overall Marriage Rate

37.6%

Male Marriage Rate

35.2%

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 55To64, while the female age group most likely to be married is 45To54.

Dewey County, South Dakota Marital Status by Race


Data via US Census (2017 ACS 5-Year Survey): Table S1201

Dewey County, South Dakota Veterans

Dewey County, South Dakota Veterans by War

257

Number of Veterans

229

Male Veterans

28

Female Veterans

Name Veterans
Vietnam88
Second Gulf War40
Korea30
First Gulf War29
World War II9

Dewey County, South Dakota Veterans by Age

Name Veterans
75+67
35 to 5458
55 to 6457
65 to 7449
18 to 3426

Dewey County, South Dakota Veterans by Race

Name Veterans % of Total
Indian1505.69%
White949.63%
2 or More1327.66%
Hispanic315.79%

Dewey County, South Dakota Veterans by Education

18.68%

Veteran Poverty Rate

26.07%

Veteran Disability Rate

Dewey County, South Dakota Employment Status

Dewey County, South Dakota Employment by Age

68.4%

Labor Force Participation

50.6%

Employment Rate

25.9%

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