Marion County Population 2018

Marion County's estimated population is 31,293 with a growth rate of -1.45% in the past year according to the most recent United States census data. Marion County is the 30th largest county in South Carolina.

Year Population Growth Growth Rate
201731,293-460-1.45%
201631,75360.02%
201531,747-189-0.59%
201431,936-159-0.50%
201332,095-323-1.00%
201232,418-361-1.10%
201132,779-177-0.54%
201032,956-943-2.78%
199033,899-280-0.82%
198034,1793,90912.91%
197030,270-1,744-5.45%
196032,014-1,096-3.31%
195033,1103,0039.97%
194030,1072,88610.60%
193027,2213,50014.75%
192023,7213,12515.17%
191020,596-14,585-41.46%
190035,1815,20517.36%
189029,976-4,131-12.11%
188034,10711,94753.91%
187022,1609704.58%
186021,1903,78321.73%
185017,4073,47524.94%
184013,9322,72424.30%
183011,2081,0079.87%
182010,2011,31714.82%
18108,8841,97028.49%
18006,9140.00%

Marion County Population Growth

Population Data via

Marion County Race Data

Race Population Percentage
Black or African American17,97657.44%
White12,91941.28%
Two or More Races4041.29%
American Indian and Alaska Native2230.71%
Asian2020.65%
Native Hawaiian and Other Pacific Islander50.02%

Marion County Population Pyramid

0k0k0k1k1k1k1k1k Male Population0k0k0k1k1k1k1k1k 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