Lake Dallas Texas Area Code
One area code covers Lake Dallas: 940.
The code covering Lake Dallas
| Area code | Primarily serves | In service |
|---|---|---|
| 940 | Denton | 1997 |
Scope the codes matched to Lake Dallas. 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
Lake Dallas has a single code, so there is nothing to divide — every local line carries 940.
ZIP codes for the same city
Postal geography is organised separately from telephone geography, so Lake Dallas’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 Lake Dallas 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 |
|---|---|---|
| Lewisville Texas area codes | 6.0 mi | 214, 469, 945, 972 |
| The Colony Texas area codes | 7.4 mi | 214, 469, 945, 972 |
| Little Elm Texas area codes | 7.4 mi | 214, 469, 945, 972 |
| Flower Mound Texas area codes | 8.1 mi | 214, 469, 682, 817, 945, 972 |
| Argyle Texas area codes | 9.1 mi | 682, 817, 940 |
| Denton Texas area codes | 9.2 mi | 682, 817, 940 |
| Coppell Texas area codes | 12 mi | 214, 469, 945, 972 |
| Frisco Texas area codes | 12 mi | 214, 469, 945, 972 |
Straight-line distance between place reference points, not driving distance.