Mason County Population 2018

Mason County's estimated population is 13,715 with a growth rate of 0.07% in the past year according to the most recent United States census data. Mason County is the 78th largest county in Illinois.

Year Population Growth Growth Rate
201713,71590.07%
201613,706-153-1.10%
201513,859-241-1.71%
201414,100-41-0.29%
201314,141-177-1.24%
201214,318-149-1.03%
201114,467-184-1.26%
201014,651-1,618-9.95%
199016,269-3,223-16.53%
198019,4923,33120.61%
197016,1619686.37%
196015,193-133-0.87%
195015,326-32-0.21%
194015,3582431.61%
193015,115-1,519-9.13%
192016,634-743-4.28%
191017,377-114-0.65%
190017,4911,4248.86%
189016,067-175-1.08%
188016,242580.36%
187016,1845,25348.06%
186010,9315,01084.61%
18505,9210.00%

Mason County Population Growth

Population Data via

Mason County Race Data

Race Population Percentage
White13,33397.21%
Two or More Races1741.27%
Black or African American760.55%
Asian530.39%
American Indian and Alaska Native510.37%
Native Hawaiian and Other Pacific Islander20.01%

Mason County Population Pyramid

0k0k0k0k0k1k Male Population0k0k0k0k0k1k 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