Rock Island

Population

36,870 (2020)

Type

City

Area

16.87 sq mi (43.7 km²), 0.2 sq mi water

Median age

36.9

Households

15,966

Persons per household

2.3

Median household income

$47,563

Average house value

$102,000

Businesses

760

Employees

17,010

Government

CITY OF ROCK ISLAND

Government office

1528 3RD AVE, ROCK ISLAND, IL 61201