Latest Data (2015)
Population 38,620
Nationwide Rank 973

Quick Facts

Rock Island, Illinois is the 973rd largest city in the United States as of 2015.

Rock Island, Illinois is a city.

Rock Island, Illinois is currently 4.7% smaller than it was in 1990, the year of its peak recorded population.

Rock Island, Illinois's growth is extremely below average. 92% of similarly sized cities are growing faster since 2000.

Rock Island, Illinois Border Map

Similarly Sized Cities

Rank Name Growth
2000-2015
967 Hurst, Texas 7.3%
968 Stanton, California 3.4%
969 Lancaster, Texas 49.2%
970 Friendswood, Texas 32.8%
971 Gainesville, Georgia 47.0%
972 Montclair, California 14.0%
973 Rock Island, Illinois -2.5%
974 Oviedo, Florida 45.8%
975 Carpentersville, Illinois 23.7%
976 Lake Oswego, Oregon 7.8%
977 Muskogee, Oklahoma -1.8%
978 Hobbs, New Mexico 34.2%
979 Muskegon, Michigan -4.1%

Demographics

Population History

Year Population Rank in US
2015 38,620 973
2014 38,642 963
2013 38,877 951
2012 38,920 942
2011 38,968 928
2010 39,018 917
2009 38,084 925
2008 38,081 914
2007 38,352 895
2006 38,254 891
2005 38,397 874
2004 38,641 859
2003 38,798 855
2002 39,172 842
2001 39,417 829
2000 39,643 812
1990 40,537 666