Pennington County, South Dakota Population 2018

Pennington County, South Dakota's estimated population is 110,141 with a growth rate of 1.14% in the past year according to the most recent United States census data. Pennington County, South Dakota is the 2nd largest county in South Dakota.

Year Population Growth Growth Rate
2017108,126-2,015-1.83%
2017110,1411,2381.14%
2016108,9037960.74%
2015108,1075640.52%
2014107,5431,6091.52%
2013105,9341,7521.68%
2012104,1821,8001.76%
2011102,3821,1401.13%
2010101,24219,89924.46%
199081,34310,98215.61%
198070,36111,01218.55%
197059,3491,1541.98%
196058,19524,14270.90%
195034,05310,25443.09%
194023,7993,72018.53%
193020,0797,35957.85%
192012,7202672.14%
191012,4536,843121.98%
19005,610-930-14.22%
18906,5404,296191.44%
18802,2440.00%

Pennington County, South Dakota Population Growth

Population Data via

Population by Race

Race Population
White89,759
American Indian and Alaska Native9,653
Two or More Races5,550
Black or African American1,282
Asian1,218
Some Other Race583
Native Hawaiian and Other Pacific Islander81

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

Pennington County, South Dakota Population Pyramid 2018

1,0002,0003,0004,000 Male Population1,0002,0003,0004,000 Female Population80757065605550454035302520151050

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

Pennington County, South Dakota Median Age

37.8


Total

36.5


Male

39.3


Female

Pennington County, South Dakota Adults

There are 82,594 adults, (17,255 of whom are seniors) in Pennington County, South Dakota.

Pennington County, South Dakota Age Dependency

65.5

Age Dependency Ratio

26.4

Old Age Dependency Ratio

39.1

Child Dependency Ratio

Pennington County, South Dakota Sex Ratio

Female

53,821

49.78%

Male

54,305

50.22%

Pennington County, South Dakota Households and Families

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

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

Pennington County, South Dakota Household Types

Type Owner Renter
Married85.7%14.3%
All67.7%32.3%
Male58.9%41.1%
Non Family52.2%47.8%
Female45.1%54.9%

67.7%

Rate of Home Ownership

Pennington County, South Dakota Households by Type

Type Count Average Size Owned
All43,1102.4267.7
Married20,6463.0385.7
Non Family15,8331.2752.2
Female4,8083.2345.1
Male1,8233.3958.9

3

Average Family Size

2.42

Average Household Size

6.2%

Unmarried (Opposite Sex)

0.1%

Unmarried (Same Sex)

Pennington County, South Dakota Households

Pennington County, South Dakota Education

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

Education Attained Count Percentage
Less Than 9th Grade1,3421.83%
9th to 12th Grade3,3974.64%
High School Graduate20,23627.66%
Some College18,30625.02%
Associates Degree8,25411.28%
Bachelors Degree14,21419.43%
Graduate Degree7,40510.12%

Pennington County, South Dakota Educational Attainment by Race

Name Total High School Bachelors
White63,08759,98919,886
Native American4,7123,738668
Hispanic2,2411,831433
Multiple Races2,1421,983247
Asian799668331
Black706639155
Other Race34726140
Islander5251

The highest rate of high school graduation is among islander people with a rate of 98.08%.

The highest rate of bachelors degrees is among islander people with a rate of 41.43%.

Pennington County, South Dakota Earnings by Educational Attainment

Name Average Male Female
Overall$32,001$39,840$26,679
Less Than High School$18,129$21,636$11,382
High School Grad$27,935$34,276$22,740
Some College$30,593$40,283$23,468
Bachelors Degree$40,354$50,023$34,211
Graduate Degree$52,630$63,850$45,746

$32,001

Average Earnings

$39,840

Average Male

$26,679

Average Female

Pennington County, South Dakota Language

Pennington County, South Dakota Language by Age

Pennington County, South Dakota Language

95.79% of Pennington County, South Dakota residents speak only English, while 4.21% speak other languages. The largest non-English language is Spanish, which is spoken by 1.64% of the population.

Pennington County, South Dakota Poverty

Pennington County, South Dakota Poverty by Race

Name Total In Poverty Poverty Rate
White85,4328,0879.47%
Native8,7494,46351.01%
Multiple5,4741,18021.56%
Hispanic5,0501,09221.62%
Black1,22239132.00%
Asian1,20617914.84%
Other5746310.98%
Islander811012.35%

14.04%

Overall Poverty Rate

12.19%

Male Poverty Rate

15.89%

Female Poverty Rate

Poverty in Pennington County, South Dakota

The race most likely to be in poverty in Pennington County, South Dakota is Native, with 51.01% below the poverty level.

The race least likely to be in poverty in Pennington County, South Dakota is White, with 9.47% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.65%. Among those working part-time, it was 19.56%, and for those that did not work, the poverty rate was 20.02%.

Pennington County, South Dakota Poverty Rate by Education

Name Poverty
Less Than High School27.41%
High School13.12%
Some College10.15%
Bachelors or Greater4.31%

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

Name Poverty
Female Unemployed46.38%
Male Unemployed32.49%
Female Employed9.54%
Male Employed5.77%

Pennington County, South Dakota Income

Pennington County, South Dakota Income by Household Type

Name Median Mean
Households$52,245$70,032
Families$66,250$84,645
Married Families$78,201$99,743
Non Families$32,853$42,130

Pennington County, South Dakota Marital Status

Pennington County, South Dakota Marital Status

Marriage Rates

49.8%

Overall Marriage Rate

49.6%

Male Marriage Rate

50.1%

Female Marriage Rate

Pennington County, South Dakota Married by Age and Sex

Pennington 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 45To54.

Pennington County, South Dakota Marital Status by Race


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

Pennington County, South Dakota Veterans

Pennington County, South Dakota Veterans by War

11,440

Number of Veterans

10,035

Male Veterans

1,405

Female Veterans

Name Veterans
Vietnam4,077
First Gulf War3,471
Second Gulf War2,751
Korea895
World War II386

Pennington County, South Dakota Veterans by Age

Name Veterans
35 to 543,063
65 to 742,895
55 to 642,093
75+2,007
18 to 341,382

Pennington County, South Dakota Veterans by Race

Name Veterans % of Total
White9,93214.04%
Indian66811.93%
2 or More46315.72%
Hispanic33812.18%
Black31232.81%
Other3910.71%
Asian252.71%
Hawaiian11.82%

Pennington County, South Dakota Veterans by Education

7.82%

Veteran Poverty Rate

27.51%

Veteran Disability Rate

Pennington County, South Dakota Employment Status

Pennington County, South Dakota Employment by Age

67.7%

Labor Force Participation

63.8%

Employment Rate

4.2%

Unemployment Rate

Pennington County, South Dakota Employment by Race

Pennington County, South Dakota Employment by Education

Population of Cities in Pennington County, South Dakota

City 2010 Census 2016 Estimated Growth Growth Rate
Rapid City684467404856028.18%
Box Elder 78159348153319.62%
Hill City9451008636.67%
Wall76687210613.84%
New Underwood66066881.21%
Keystone33734030.89%
Wasta808222.50%
Quinn565711.79%
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