Zip Area Code

Rock Island County, Illinois

Rock Island County, Illinois, has 26 towns and 20 ZIP codes, in area code 309, with 861 as an overlay.

Towns in Rock Island County, A to Z

TownZIP codesArea codes
Andalusia61232309, 861
Barstow61236309, 861
Buffalo Prairie61237309, 861
Campbell's Islandnearest61244, 61256, 61282309, 861
Carbon Cliff61239309, 861
Clevelandnearest61236, 61239, 61241309, 861
Coal Valley61240309, 861
Cordova61242309, 861
Coyne Centernearest61264309, 861
East Moline61244309, 861
Edgingtonnearest61232, 61279, 61284309, 861
Hampton61256309, 861
Hillsdale61257309, 861
Illinoisnearest61237, 61259309, 861
Illinois City61259309, 861
Joslinnearest61257309, 861
Milan61264309, 861
Moline61265, 61266309, 861
Oak Grovenearest61201, 61264309, 861
Port Byron61275309, 861
Rapidsnearest61256, 61275, 61278309, 861
Rapids City61278309, 861
Rock Island61201, 61204, 61299309, 861
Rock Island Arsenalnearest61201, 61265309, 861
Silvis61282309, 861
Taylor Ridge61284309, 861

ZIP codes in Rock Island County

Area codes in Rock Island County

  • Area code 309

    In service since 1957. Shares its area with 861. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 861

    In service since February 24, 2023. Shares its area with 309. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.