Delaware County Iowa is covered by a total of 17 ZIP Codes. There are 10 ZIP Codes in Delaware County that extend into adjacent counties (Buchanan County, Clayton County, Dubuque County, Jones County, and Linn County). Of the ZIP codes within or partially within Delaware County there are 16 Standard 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 Delaware 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 | |||
|---|---|---|---|---|---|
| Masonville | Standard | |||
| Colesburg | Standard | |||
| Delaware | Standard | |||
| Dundee | Standard | |||
| Dyersville | Standard | |||
| Earlville | Standard | |||
| Edgewood | Standard | |||
| Greeley | Standard | |||
| Manchester | Standard | |||
| New Vienna | Standard | |||
| Strawberry Point | Standard | |||
| Worthington | Standard | |||
| Coggon | Standard | |||
| Delhi | Standard | |||
| Hopkinton | Standard | |||
| Monticello | Standard | |||
| Ryan | Standard |