Union County Population 2018

Union County's estimated population is 15,029 with a growth rate of 0.25% in the past year according to the most recent United States census data. Union County is the 13th largest county in South Dakota.

Year Population Growth Growth Rate
201715,029370.25%
201614,9921200.81%
201514,872-117-0.78%
201414,9892281.54%
201314,761-40-0.27%
201214,8011571.07%
201114,6441511.04%
201014,4934,30442.24%
199010,189-749-6.85%
198010,9381,29513.43%
19709,643-554-5.43%
196010,197-595-5.51%
195010,792-883-7.56%
194011,6751951.70%
193011,4803813.43%
192011,0994233.96%
191010,676-477-4.28%
190011,1532,02322.16%
18909,1302,31734.01%
18806,8133,30694.27%
18703,5070.00%

Union County Population Growth

Population Data via

Union County Race Data

Race Population Percentage
White14,19494.44%
Two or More Races2251.50%
Asian1591.06%
Black or African American1410.94%
American Indian and Alaska Native1040.69%
Native Hawaiian and Other Pacific Islander80.05%

Union County Population Pyramid

0k0k0k0k0k1k1k Male Population0k0k0k0k0k1k1k Female Population8580757065605550454035302520151050
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