Rock Rapids Iowa Area Code
One area code covers Rock Rapids: 712.
The code covering Rock Rapids
| Area code | Primarily serves | In service |
|---|---|---|
| 712 | Sioux City | 1947 |
Scope the codes matched to Rock Rapids. Source geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot) and LocalCallingGuide NPA list (2026-07 NPA list). Updated . Overlay relationships come from the numbering-plan authority; the place match is computed.
Which part of town has which code
Rock Rapids has a single code, so there is nothing to divide — every local line carries 712.
ZIP codes for the same city
Postal geography is organised separately from telephone geography, so Rock Rapids’s 1 ZIP code do not map onto the codes above. They are listed in full, with the county each falls in, on the postal side of the site.
Nearby places with different codes
These are the closest places to Rock Rapids whose area codes are not the same set. If you are near one of them, a local number may carry a code that is not on the list above.
| City | Distance | Their area codes |
|---|---|---|
| Cylinder Iowa area codes | 85 mi | 515, 712 |
| Fenton Iowa area codes | 89 mi | 515 |
| Whittemore Iowa area codes | 91 mi | 515 |
| West Bend Iowa area codes | 93 mi | 515 |
| Swea City Iowa area codes | 93 mi | 515 |
| Lone Rock Iowa area codes | 94 mi | 515 |
| Ottosen Iowa area codes | 97 mi | 515 |
| Bradgate Iowa area codes | 98 mi | 515 |
Straight-line distance between place reference points, not driving distance.