Dyer Indiana Area Code
One area code covers Dyer: 219.
The code covering Dyer
| Area code | Primarily serves | In service |
|---|---|---|
| 219 | Hammond | 1948 |
Scope the codes matched to Dyer. 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
Dyer has a single code, so there is nothing to divide — every local line carries 219.
ZIP codes for the same city
Postal geography is organised separately from telephone geography, so Dyer’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 Dyer 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 |
|---|---|---|
| North Judson Indiana area codes | 43 mi | 219, 574 |
| Knox Indiana area codes | 48 mi | 574 |
| Hamlet Indiana area codes | 49 mi | 574 |
| Walkerton Indiana area codes | 53 mi | 574 |
| New Carlisle Indiana area codes | 54 mi | 574 |
| Monon Indiana area codes | 55 mi | 219, 574 |
| North Liberty Indiana area codes | 56 mi | 574 |
| Winamac Indiana area codes | 56 mi | 219, 574 |
Straight-line distance between place reference points, not driving distance.