Lake Forest : Historical Population Figures

Year/Population

1860 – 300 est.
1870 – 800
1880 – 1, 000
1890 – 1,750
1900 – 2,215
1910 – 3,300
1920 – 3,600/3,657
1926 – 5,500 est.
1927 – 6,200 est.
1928 – 6,500/6,554
1929 – 6,900 est.
1930 – 6,500/6,554
1940 – 7,200
1950 – 7,819
1960 – 10,658/10,687
1970 – 15,642
1971 – 15,642
1974 – 15,642
1980 – 15,245/16,223
1984 – 15,805
1989 – 18,038 est.
1990 – 17,836/17,989 est.
1991 – 19,384 est.
1994 – 18,774/18,826 proj.
1995 – 18,705 proj./19,719
1996 – 20,878 proj.
1997 – 17,836
1998 – 21,431
2000 – 20,059
2001 – 20,557 proj.
2002 – 20,607 proj.
2003 – 20,751 proj.
2004 – 20,791 proj.
2005 – 20,907 proj.
2006 – 21,059 proj.
2007 – 21,127 proj.
2008 – 21,300 proj.

Note: some years have varied figures

Sources: Edward Arpee’s History of Lake Forest, U. S. Census printouts, Donnelley Demographics reports, City of Lake Forest documents, Illinois Department of Commerce and Economic Opportunity, Regional Development Institute of Northern Illinois University, and Lake Forester articles

Lake Forest Library
Updated 10-15-08