Marble Rock Iowa Area Code
One area code covers Marble Rock: 641.
The code covering Marble Rock
| Area code | Primarily serves | In service |
|---|---|---|
| 641 | Cedar Falls | 2000 |
Scope the codes matched to Marble Rock. 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
Marble Rock has a single code, so there is nothing to divide — every local line carries 641.
ZIP codes for the same city
Postal geography is organised separately from telephone geography, so Marble Rock’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 Marble Rock 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 |
|---|---|---|
| Greene Iowa area codes | 5.7 mi | 319, 641 |
| Allison Iowa area codes | 15 mi | 319, 641 |
| Clarksville Iowa area codes | 16 mi | 319 |
| Nashua Iowa area codes | 17 mi | 319, 641 |
| Plainfield Iowa area codes | 19 mi | 319 |
| Shell Rock Iowa area codes | 23 mi | 319 |
| Waverly Iowa area codes | 26 mi | 319 |
| Aplington Iowa area codes | 27 mi | 319 |
Straight-line distance between place reference points, not driving distance.