Last Updated: August 15, 2025
| Postal Code: |
H3Z 1A3 |
| City: |
Westmount |
| Area Name: |
Montreal |
| Province: |
QC [Quebec] |
| Area Code(s): |
514 |
| Time Zone: |
5 |
| Day Light Savings: |
Y |
| Latitude: |
45.502804 |
| Longitude: |
-73.580495 |
| Elevation |
111 meters |
| Population*: |
11,544 |
| Dwellings*: |
6,609 |
* Dwelling and Population based on the FSA from Statistics Canada.
H3Z 1A3 Census Area Designations
Information from the Postal Code Conversion File, which ties Postal Codes to different Census Canada Demographic areas.
| Census Division: |
|
| Census Metropolitan Area: |
Montréal |
| Census Subdivision: |
Montréal |
| Federal Electoral District: |
Ville-Marie--Le Sud-Ouest--Île-des-Soeurs |
| Designated Place: |
|
| Economic Region: |
Montréal |
| Census Dissemination Area: |
|
| Census Dissemination Block: |
|
| Census Consolidated Subdivision: |
Montréal |
| Census Tract: |
0129.01 |
| Population Centre: |
Montréal |
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