Humboldt Iowa Area Code
One area code covers Humboldt: 515.
The code covering Humboldt
| Area code | Primarily serves | In service |
|---|---|---|
| 515 | Des Moines | 1947 |
Scope the codes matched to Humboldt. 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
Humboldt has a single code, so there is nothing to divide — every local line carries 515.
ZIP codes for the same city
Postal geography is organised separately from telephone geography, so Humboldt’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 Humboldt 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 |
|---|---|---|
| Gilmore City Iowa area codes | 11 mi | 515, 712 |
| Barnum Iowa area codes | 17 mi | 515, 712 |
| Rolfe Iowa area codes | 17 mi | 712 |
| Palmer Iowa area codes | 20 mi | 712 |
| Manson Iowa area codes | 21 mi | 515, 712 |
| Pocahontas Iowa area codes | 22 mi | 712 |
| Plover Iowa area codes | 23 mi | 712 |
| Havelock Iowa area codes | 25 mi | 712 |
Straight-line distance between place reference points, not driving distance.