Rock Island County, IL

Population: 142,995 · Median Income: $66,768 · 428 sq mi

Population

142,995

Median Income

$66,768

Median Home Value

$144,700

Unemployment

5.7%

Median Age

40.3 yrs

Poverty Rate

15.4%

Median Rent

$863/mo

Land Area

428 sq mi

Cities

2024 Lean

D+9.6%

Rock Island County is a county in Illinois with a population of 142,995. The median household income is $66,768. The median home value is $144,700. The unemployment rate is 5.7%. The median age is 40.3 years. There are 24 cities in Rock Island County.

Explore Rock Island County Data

🗳️ Elections & Voting 👥 Demographics & Population 💵 Income & Poverty 🏠 Housing & Real Estate 💼 Employment & Commuting

2024 Election Results

Source: County Election Data

Winner

Democrat

Dem Votes

34,126

53.9%

GOP Votes

28,061

44.4%

Total Votes

63,267

View full election history →

Cities in Rock Island County

Source: Census Bureau