| Saint-Juste-du-Lac | |
| Settlement Type: | Municipality |
| Pushpin Map: | Canada Eastern Quebec |
| Pushpin Map Caption: | Location in eastern Quebec |
| Coordinates: | 47.65°N -113°W |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Type2: | Region |
| Subdivision Name2: | Bas-Saint-Laurent |
| Subdivision Type3: | RCM |
| Subdivision Name3: | Témiscouata |
| Established Title1: | Constituted |
| Established Date1: | May 23, 1923 |
| Leader Title: | Mayor |
| Leader Name: | Jean-Jacques Bonenfant |
| Leader Title1: | Federal riding |
| Leader Name1: | Rimouski-Neigette— Témiscouata—Les Basques |
| Leader Title2: | Prov. riding |
| Leader Name2: | Rivière-du-Loup-Témiscouata |
| Area Total Km2: | 190.50 |
| Area Land Km2: | 166.94 |
| Population Total: | 543 |
| Population As Of: | 2021 |
| Population Density Km2: | 3.3 |
| Population Blank1 Title: | Pop 2016-2021 |
| Population Blank1: | 3.2% |
| Population Blank2 Title: | Dwellings |
| Population Blank2: | 348 |
| Timezone: | EST |
| Utc Offset: | −5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | −4 |
| Postal Code Type: | Postal code(s) |
| Postal Code: | G0L 3R0 |
| Area Code: | 418 and 581 |
| Blank Name: | Highways |
Saint-Juste-du-Lac is a municipality in the province of Quebec, Canada, located within the Témiscouata Regional County Municipality in the Bas-Saint-Laurent region. As of the Canada 2021 Census, the municipality had a population of 543.