About Rock Island County
Rock Island County is a county in Illinois (IL) with a population of approximately 141,236 residents. The county seat is .
Rock Island County is one of the counties that make up Illinois, providing local government services including law enforcement, property records, courts, and public infrastructure to its residents.
County Details
- County
- Rock Island County
- State
- Illinois (IL)
- Population
- 141,236
- County Seat
Local Government
Rock Island County residents are served by county-level government that typically includes:
- County commission or board of supervisors — Elected officials responsible for county governance, budgets, and policy
- Sheriff's office — Provides law enforcement services throughout Rock Island County
- County clerk — Manages vital records, elections, and property records
- County courts — The judicial branch serving Rock Island County residents
- Tax assessor — Handles property tax assessments and collections
Getting Involved
Residents of Rock Island County can participate in local government by attending county commission meetings, voting in local elections, and contacting their county and state representatives. Find your elected officials by browsing the Illinois representatives page.
Frequently Asked Questions
What is the population of Rock Island County?
Rock Island County has an approximate population of 141,236 residents.
What is the county seat of Rock Island County?
The county seat of Rock Island County is .
What state is Rock Island County in?
Rock Island County is located in Illinois (IL).