Rock Island County
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- Population
- 142,757
- Area
- 427.5 sq mi (1,107.21 km²), 23.8 sq mi water
- Median age
- 40.3
- Households
- 61,733
- Persons per household
- 2.2
- Median household income
- $67,159
- Median house value
- $150,400
Demographics: 2020–2024 ACS
This Afternoon
82°F
Sunny
Tonight
65°F
Mostly Clear6% precip
Saturday
85°F
Mostly Sunny9% precip
Saturday Night
61°F
Partly Cloudy12% precip
Cities & Towns in Rock Island County
AndalusiaAndalusia TownshipBarstowBlackhawk TownshipBowling TownshipBuffalo PrairieBuffalo Prairie TownshipCampbell's IslandCanoe Creek TownshipCarbon CliffCoal ValleyCoal Valley TownshipCoe TownshipCordovaCordova TownshipCoyne CenterDrury TownshipEast MolineEdgingtonEdgington TownshipHamptonHampton TownshipHillsdaleIllinois CityJoslinMilanMolineMoline TownshipOak GrovePort ByronPort Byron TownshipRapids CityReynoldsRock IslandRock Island ArsenalRock Island TownshipRural TownshipSilvisSouth Moline TownshipSouth Rock Island TownshipTaylor RidgeZuma Township