McDonough County Population 2018

McDonough County's estimated population is 30,823 with a growth rate of -1.80% in the past year according to the most recent United States census data. McDonough County is the 48th largest county in Illinois.

Year Population Growth Growth Rate
201730,823-564-1.80%
201631,387-283-0.89%
201531,670-222-0.70%
201431,892-323-1.00%
201332,215-323-0.99%
201232,538350.11%
201132,503-127-0.39%
201032,630-2,614-7.42%
199035,244-2,223-5.93%
198037,4678142.22%
197036,6537,72526.70%
196028,9287292.59%
195028,1991,2554.66%
194026,944-385-1.41%
193027,3292550.94%
192027,0741870.70%
191026,887-1,525-5.37%
190028,4129453.44%
189027,467-503-1.80%
188027,9701,4615.51%
187026,5096,44032.09%
186020,06912,453163.51%
18507,6162,30843.48%
18405,3080.00%

McDonough County Population Growth

Population Data via

McDonough County Race Data

Race Population Percentage
White28,31491.86%
Black or African American1,7305.61%
Asian6302.04%
Two or More Races5531.79%
American Indian and Alaska Native1090.35%
Native Hawaiian and Other Pacific Islander60.02%

McDonough County Population Pyramid

0k1k1k2k2k3k Male Population0k1k1k2k2k3k 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