Hardin Missouri Area Code
One area code covers Hardin: 660.
The code covering Hardin
| Area code | Primarily serves | In service |
|---|---|---|
| 660 | Sedalia | 1997 |
Scope the codes matched to Hardin. 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
Hardin has a single code, so there is nothing to divide — every local line carries 660.
ZIP codes for the same city
Postal geography is organised separately from telephone geography, so Hardin’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 Hardin 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 |
|---|---|---|
| Henrietta Missouri area codes | 6.1 mi | 816, 975 |
| Richmond Missouri area codes | 7.6 mi | 660, 816, 975 |
| Camden Missouri area codes | 11 mi | 816, 975 |
| Wellington Missouri area codes | 12 mi | 816, 975 |
| Mayview Missouri area codes | 15 mi | 816, 975 |
| Orrick Missouri area codes | 16 mi | 816, 975 |
| Napoleon Missouri area codes | 17 mi | 816, 975 |
| Levasy Missouri area codes | 18 mi | 816, 975 |
Straight-line distance between place reference points, not driving distance.