| Zip Code | City | State | County | Area Code | Time Zone | Latitude/Longitude | | 52001 | Dubuque | Iowa | Dubuque | 563 | Central | 42.51498/-90.68191 | | 52002 | Dubuque | Iowa | Dubuque | 563 | Central | 42.51219/-90.73837 | | 52003 | Dubuque | Iowa | Dubuque | 563 | Central | 42.46492/-90.68288 | | 52004 | Dubuque | Iowa | Dubuque | 563 | Central | 42.5/-90.67 | | 52099 | Dubuque | Iowa | Dubuque | 563 | Central | 42.48/-90.8 |
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