Pennington County Population 2017

Pennington County's estimated population is 109,372 with a growth rate of 0.75% in the past year according to the most recent United States census data. Pennington County is the 2nd largest county in South Dakota.

Year Population Growth Growth Rate
2016109,3728110.75%
2015108,5616160.57%
2014107,9451,7241.62%
2013106,2211,8281.75%
2012104,3931,9641.92%
2011102,4291,1341.12%
2010101,29519,95224.53%
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 Population Growth

Population Data via

Pennington County Race Data

Race Population Percentage
White90,79283.01%
American Indian and Alaska Native11,06510.12%
Two or More Races3,9353.60%
Black or African American1,4311.31%
Asian1,2431.14%
Native Hawaiian and Other Pacific Islander950.09%

Pennington County Population Pyramid

0k1k2k3k4kPennington County Male Population0k1k2k3k4kPennington County Female Population

Population of Cities in Pennington County

City 2010 Census 2016 Estimated Growth Growth Rate
Rapid City684467404856028.18%
Box Elder78159348153319.62%
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