Northern Illinois Data by Subject Demographic Characteristics - Households by Household Size Select an Area Rock Island County, Illinois   Boone County   Bureau County   Carroll County   Cook County   DeKalb County   DuPage County   Grundy County   Henry County   JoDaviess County   Kane County   Kankakee County   Kendall County   Lake County   LaSalle County   Lee County   McHenry County   Mercer County   Ogle County   Putnam County   Rock Island County   Stephenson County   Whiteside County   Will County   Winnebago County   Chicago PMSA   Quad Cities MSA   Rockford MSA   State of Illinois Household Size 1980 1990 2000 Change 1980-1990 Change 1990-2000 Number Percent Number Percent Total households 61,052 59,317 60,686 -1,735 -2.8 1,369 2.3   1 person 14,600 16,985 18,316 2,385 16.3 1,331 7.8   2 persons 19,694 19,795 20,790 101 0.5 995 5.0   3 - 4 persons 19,516 17,438 16,612 -2,078 -10.6 -826 -4.7   5 or more persons 7,242 5,099 4,968 -2,143 -29.6 -131 -2.6 Persons per household (Mean) 2.66 2.52 2.38   SOURCE: U.S. Census Bureau, 1980, 1990, 2000. ::: click here to print this page :::