General Information:

Rock Island County

About Rock Island County

With the Mighty Mississippi River to the north and west and the Rock River flowing through the center, Rock Island County offers a varied landscape ranging from rich agricultural fields to rolling bluffs. With low housing costs, exceptional health care, quality schools and a wide range of recreational activities and tourist attractions, it's no wonder Rock Island County is home to nearly 150,000 residents and thousands of visitors each year.

Rock Island County is part of the Quad Cities Metropolitan Area of approximately 360,000 residents, nestled along the Mississippi River on the Illinois/Iowa border between Chicago and Des Moines. The area is served by interstates I-80, I-88, I-74, I-280, several major state highways and the Quad City International Airport ExternalLink.gif.

History:
On February 9, 1831 the Illinois General Assembly established Rock Island County and defined its boundaries. In 1833 early pioneers approved formation of a county government with the first county election held on July 5th of that year. In 1856 petitions were submitted to the County Board requesting the formation of townships during the next election in November. In this election Col. George Davenport, John W. Spencer and George W. Harlan were the first County Commissioners elected along with Benjamin Axe being chosen first Sheriff and Levi Wells first County Coroner. This township form of government is still in existence after nearly 150 years.

Several cities and villages with varying populations are located in Rock Island County.

Place Population
Village of Andalusia ExternalLink.gif 1,050
Village of Carbon Cliff ExternalLink.gif 1,689
Village of Coal Valley ExternalLink.gif 3,606
Village of Cordova ExternalLink.gif 633
City of East Moline ExternalLink.gif 20,333
Village of Hampton ExternalLink.gif 1,626
Village of Hillsdale ExternalLink.gif 588
Village of Milan ExternalLink.gif 5,348
City of Moline ExternalLink.gif 43,768
Village of Oak Grove 1,318
Village of Port Byron ExternalLink.gif 1,535
Village of Rapids City ExternalLink.gif 953
Village of Reynolds 508
City of Rock Island ExternalLink.gif (County Seat) 39,684
City of Silvis ExternalLink.gif 7,269
Unincorporated Rock Island County 19,466
* Based on 2000 Census Bureau Statistics.

Back to top



Rock Island County Office Building (map ExternalLink.gif)
1504 Third Avenue, Rock Island IL 61201-8624

Phone: See County Directory      Hours: 8:00 AM to 4:30 PM - Monday thru Friday