Decatur Iowa Area Code
One area code covers Decatur: 641.
The code covering Decatur
| Area code | Primarily serves | In service |
|---|---|---|
| 641 | Cedar Falls | 2000 |
Scope the codes matched to Decatur. 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
Decatur 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 Decatur’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 Decatur 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 |
|---|---|---|
| Patterson Iowa area codes | 42 mi | 515 |
| Bevington Iowa area codes | 43 mi | 515 |
| Winterset Iowa area codes | 43 mi | 515, 641 |
| Indianola Iowa area codes | 45 mi | 515, 641 |
| Ackworth Iowa area codes | 47 mi | 515, 641 |
| Bedford Iowa area codes | 47 mi | 712 |
| Gravity Iowa area codes | 48 mi | 712 |
| Corning Iowa area codes | 50 mi | 641, 712 |
Straight-line distance between place reference points, not driving distance.