Union County Population 2018

Union County's estimated population is 27,537 with a growth rate of -0.53% in the past year according to the most recent United States census data. Union County is the 34th largest county in South Carolina.

Year Population Growth Growth Rate
201727,537-148-0.53%
201627,685-46-0.17%
201527,731-183-0.66%
201427,914-80-0.29%
201327,994-207-0.73%
201228,201-460-1.60%
201128,661-264-0.91%
201028,925-1,412-4.65%
199030,337-414-1.35%
198030,7511,5215.20%
197029,230-785-2.62%
196030,015-1,319-4.21%
195031,334-26-0.08%
194031,3604401.42%
193030,9205481.80%
192030,3724611.54%
191029,9114,41017.29%
190025,5011380.54%
189025,3631,2835.33%
188024,0804,83225.10%
187019,248-387-1.97%
186019,635-217-1.09%
185019,8529164.84%
184018,9361,0305.75%
183017,9063,78026.76%
182014,1263,13128.48%
181010,9957587.40%
180010,2372,54433.07%
17907,6930.00%

Union County Population Growth

Population Data via

Union County Race Data

Race Population Percentage
White18,36066.67%
Black or African American8,76931.84%
Two or More Races4761.73%
Asian830.30%
American Indian and Alaska Native730.27%
Native Hawaiian and Other Pacific Islander140.05%

Union County Population Pyramid

0k0k0k1k1k1k1k Male Population0k0k0k1k1k1k1k 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