DeKalb County Population 2018

DeKalb County's estimated population is 104,733 with a growth rate of 0.27% in the past year according to the most recent United States census data. DeKalb County is the 20th largest county in Illinois.

Year Population Growth Growth Rate
2017104,7332860.27%
2016104,447400.04%
2015104,407-241-0.23%
2014104,6485190.50%
2013104,129-183-0.18%
2012104,312-98-0.09%
2011104,410-737-0.70%
2010105,14727,21534.92%
199077,9323,3084.43%
198074,6242,9704.14%
197071,65419,94038.56%
196051,71410,93326.81%
195040,7816,39318.59%
194034,3881,7445.34%
193032,6441,3054.16%
192031,339-2,118-6.33%
191033,4571,7015.36%
190031,7564,69017.33%
189027,0662981.11%
188026,7683,50315.06%
187023,2654,17921.90%
186019,08611,546153.13%
18507,5405,843344.31%
18401,6970.00%

DeKalb County Population Growth

Population Data via

DeKalb County Race Data

Race Population Percentage
White91,43687.30%
Black or African American7,7497.40%
Asian2,8902.76%
Two or More Races1,9621.87%
American Indian and Alaska Native4300.41%
Native Hawaiian and Other Pacific Islander740.07%

DeKalb County Population Pyramid

0k2k4k6k8k Male Population0k2k4k6k8k 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