| Code | Name | Region |
|---|---|---|
| CA6OD | Douglas Point | ON |
| CADWG | Dowling | ON |
| CADVW | Downsview | ON |
| CADMV | Demorestville | ON |
| CADFI | Denfield | ON |
| CADSA | Denman Island | BC |
| CADRS | Densmore Mills | NS |
| CADER | Deroche | BC |
| CADSO | Desboro | ON |
| CADCH | Deschaillons-sur-saint-laurent | QC |
| CADBT | Deschambault | QC |
| CADSR | Deseronto | ON |
| CAYDS | Desolation Sound | BC |
| CADMG | Deux-montagnes | QC |
| CADVN | Devon | AB |
| CADEW | Dewberry | AB |
| CADIC | Diamond City | AB |
| CADID | Didsbury | AB |
| CADPP | Dieppe | NB |
| CADIG | Digby | NS |
| CADIL | Dildo | NL |
| CADLK | Dilke | SK |
| CADMS | Dimsdale | AB |
| CADWI | De Winton | AB |
| CAYRD | Dean River | BC |
| CAYDL | Dease Lake | BC |
| CADET | Debert Station | NS |
| CADBL | Debolt | AB |
| CADEB | Deception Bay | QC |
| CADEC | Decker | MB |
| CADRR | Deep River | ON |
| CADEI | Deer Island | NB |
| CAYDF | Deer Lake | NL |
| CAYVZ | Deer Lake | ON |
| CADGL | Degelis | QC |
| CADWR | Delaware | ON |
| CADLG | Deleage | QC |
| CADLI | Delhi | ON |
| CAYWJ | Deline | NT |
| CALIS | Delisle | SK |
| CADRN | Deloraine | MB |
| CADLS | Delson/quebec | QC |
| CADEL | Delta | BC |
| CACBE | Crystal Beach | ON |
| CACCI | Crystal City | MB |
| CACUL | Cultus Lake | BC |
| CAOCL | Cumberland | ON |
| CACUM | Cumberland Bay | NB |
| CACPS | Cupids | NL |
| CACKF | Cut Knife | SK |