Barnwell County Population 2017

Barnwell County's estimated population is 21,483 with a growth rate of -1.03% in the past year according to the most recent United States census data. Barnwell County is the 39th largest county in South Carolina.

Year Population Growth Growth Rate
201621,483-223-1.03%
201521,706-253-1.15%
201421,959-185-0.84%
201322,144-151-0.68%
201222,295-117-0.52%
201122,412-198-0.88%
201022,6102,31711.42%
199020,2934252.14%
198019,8682,69215.67%
197017,176-483-2.74%
196017,6593932.28%
195017,266-2,872-14.26%
194020,138-1,083-5.10%
193021,221-1,860-8.06%
192023,081-11,128-32.53%
191034,209-1,295-3.65%
190035,504-9,109-20.42%
189044,6134,75611.93%
188039,8574,13311.57%
187035,7244,98116.20%
186030,7434,13515.54%
185026,6085,13723.93%
184021,4712,23511.62%
183019,2364,48630.41%
182014,7502,47020.11%
181012,2804,90466.49%
18007,3760.00%

Barnwell County Population Growth

Population Data via

Barnwell County Race Data

Race Population Percentage
White11,48353.45%
Black or African American9,61644.76%
Two or More Races3361.56%
Asian1420.66%
American Indian and Alaska Native1240.58%
Native Hawaiian and Other Pacific Islander50.02%

Barnwell County Population Pyramid

0k0k0k1k1kBarnwell County Male Population0k0k0k1k1kBarnwell County Female Population

Population of Cities in Barnwell County

City 2010 Census 2016 Estimated Growth Growth Rate
Barnwell47504542-208-4.38%
Williston31392998-141-4.49%
Blackville24062265-141-5.86%
Hilda447421-26-5.82%
Elko193185-8-4.15%
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