Rock Island County Illinois is covered by a total of 23 ZIP Codes. There are 5 ZIP Codes in Rock Island County that extend into adjacent counties (Henry County, and Mercer County). Of the ZIP codes within or partially within Rock Island County there are 16 Standard ZIP Codes, 1 Unique ZIP Codes and 5 PO Box ZIP Codes.
Click on the ZIP Codes in the interactive map to view more information. The map control in the upper right corner can be used to toggle map layers on and off. The red outline is the border of Rock Island County and can be turned on and off. Each type of postal code can also be turned on and off.
| ZIP Code | ZIP Code City/Town | ZIP Code Type | |||
|---|---|---|---|---|---|
| Rock Island | Standard | |||
| Rock Island | PO Box | |||
| Andalusia | Standard | |||
| Barstow | PO Box | |||
| Buffalo Prairie | PO Box | |||
| Carbon Cliff | Standard | |||
| Coal Valley | Standard | |||
| Cordova | Standard | |||
| East Moline | Standard | |||
| Hampton | Standard | |||
| Hillsdale | Standard | |||
| Illinois City | Standard | |||
| Milan | Standard | |||
| Moline | Standard | |||
| Moline | PO Box | |||
| Orion | Standard | |||
| Port Byron | Standard | |||
| Rapids City | PO Box | |||
| Reynolds | Standard | |||
| Sherrard | Standard | |||
| Silvis | Standard | |||
| Taylor Ridge | Standard | |||
| Rock Island | Unique |