Northern Illinois Data by Subject Demographic Characteristics - Households by Household Size Select an Area McHenry 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 49,078 62,940 89,377 13,862 28.2 26,437 42.0   1 person 7,775 10,631 15,957 2,856 36.7 5,326 50.1   2 persons 14,758 19,388 27,222 4,630 31.4 7,834 40.4   3 - 4 persons 18,601 24,371 33,255 5,770 31.0 8,884 36.5   5 or more persons 7,944 8,550 12,943 606 7.6 4,393 51.4 Persons per household (Mean) 2.99 2.80 2.98   SOURCE: U.S. Census Bureau, 1980, 1990, 2000. ::: click here to print this page :::