Iroquois County Population 2018

Iroquois County's estimated population is 27,876 with a growth rate of -1.20% in the past year according to the most recent United States census data. Iroquois County is the 51st largest county in Illinois.

Year Population Growth Growth Rate
201727,876-338-1.20%
201628,214-320-1.12%
201528,534-189-0.66%
201428,723-213-0.74%
201328,936-328-1.12%
201229,264-231-0.78%
201129,495-204-0.69%
201029,699-1,088-3.53%
199030,787-2,189-6.64%
198032,976-556-1.66%
197033,532-30-0.09%
196033,5621,2143.75%
195032,348-148-0.46%
194032,496-417-1.27%
193032,913-1,928-5.53%
192034,841-702-1.98%
191035,543-2,471-6.50%
190038,0142,8478.10%
189035,167-284-0.80%
188035,4519,66937.50%
187025,78213,457109.18%
186012,3258,176197.06%
18504,1492,454144.78%
18401,6950.00%

Iroquois County Population Growth

Population Data via

Iroquois County Race Data

Race Population Percentage
White27,72199.44%
Two or More Races3491.25%
Black or African American3121.12%
Asian1700.61%
American Indian and Alaska Native920.33%
Native Hawaiian and Other Pacific Islander70.03%

Iroquois County Population Pyramid

0k0k0k1k1k1k1k Male Population0k0k0k1k1k1k1k 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