| Code | Name | Region |
|---|---|---|
| CAYLY | Lytton | BC |
| CAMAB | Mabou | NS |
| CAMCC | Macamic | QC |
| CAMD8 | Macdonald | MB |
| CAMBC | Maces Bay | NB |
| CAMGG | Macgregor | MB |
| CAMNZ | Mackenzie | BC |
| CAMKL | Macklin | SK |
| CAMCO | Macoun | SK |
| CAMTQ | Mactaquac | NB |
| CAMCT | Mactier | ON |
| CAMWA | Madawaska | ON |
| CAMAD | Madoc | ON |
| CALRT | Lorette | MB |
| CALVL | Loretteville | QC |
| CALTO | Loretto | ON |
| CALOR | L'orignal | ON |
| CALNV | Lorneville | ON |
| CALOT | Lotbiniere | QC |
| CALOE | Lougheed | AB |
| CALOU | Louisbourg | NS |
| CALSV | Louiseville | QC |
| CALWB | Lowbanks | ON |
| CALWF | Lowe Farm | MB |
| CALCV | Lower Cove | NL |
| CALEO | Lower East Pubnico | NS |
| CASKL | Lower Sackville | NS |
| CALWH | Lower Woods Harbour | NS |
| CALUU | Lucan | ON |
| CALKN | Lucknow | ON |
| CALCL | Lucky Lake | SK |
| CALUY | Lumby | BC |
| CALUN | Lunenburg | NS |
| CALCP | Lockeport | NS |
| CALKP | Lockport | MB |
| CAOCH | Locusthill | ON |
| CALDG | Lodgepole | AB |
| CALNL | Logan Lake | BC |
| CALGY | Logy Bay | NL |
| CALOY | Lombardy | ON |
| CALOM | Lomond | AB |
| CALMD | Lomond | NL |
| CALOD | London | ON |
| CAONL | Londonderry | NS |
| CALNB | Lone Butte | BC |
| CALOH | Long Harbour | NL |
| CAYLX | Long Point | ON |
| CALOP | Long Pond | NL |
| CALST | Long Sault | ON |
| CALFM | Longford Mills | ON |