| Saint-Antoine-de-l'Isle-aux-Grues | |
| Settlement Type: | Parish municipality |
| Pushpin Map: | Canada Southern Quebec |
| Pushpin Map Caption: | Location in province of Quebec. |
| Coordinates: | 47.0667°N -103°W |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Type2: | Region |
| Subdivision Name2: | Chaudière-Appalaches |
| Subdivision Type3: | RCM |
| Subdivision Name3: | Montmagny |
| Established Title1: | Constituted |
| Established Date1: | January 1, 1860 |
| Leader Title: | Mayor |
| Leader Name: | Frédéric Poulin |
| Leader Title1: | Federal riding |
| Leader Name1: | Montmagny—L'Islet— Kamouraska—Rivière- du-Loup |
| Leader Title2: | Prov. riding |
| Leader Name2: | Côte-du-Sud |
| Area Total Km2: | 24.10 |
| Area Land Km2: | 23.97 |
| Population Total: | 122 |
| Population As Of: | 2021 |
| Population Density Km2: | 5.1 |
| Population Blank1 Title: | Pop 2016-2021 |
| Population Blank1: | 15.3% |
| Population Blank2 Title: | Dwellings |
| Population Blank2: | 102 |
| Timezone: | EST |
| Utc Offset: | −5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | −4 |
| Timezone1: | EST |
| Timezone1 Dst: | EDT |
| Postal Code Type: | Postal code(s) |
| Postal Code: | G0R 1P0 |
| Area Code: | 418 and 581 |
| Blank Name: | Highways |
| Blank Info: | No major routes |
Saint-Antoine-de-l'Isle-aux-Grues is a parish municipality in Quebec, in the Montmagny Regional County Municipality in the administrative region of Chaudière-Appalaches. It is known for bird-watching, goose-hunting and cheeses.
In the 2021 Census of Population conducted by Statistics Canada, Saint-Antoine-de-l'Isle-aux-Grues had a population of living in of its total private dwellings, a change of from its 2016 population of . With a land area of 23.97km2, it had a population density of in 2021.[1]
L'Isle-aux-Grues has a small airstrip, which provides the only access to the island during the winter, with Air Montmagny the main airline. A ferry operates during the summer months.
Children from Isle-aux-Grues attend school in Montmagny, Quebec, travelling by plane each day.[2]
On May 19, 2010 at about 3:30 p.m. Eastern time, a Cessna 172 airplane carrying four people crashed on Isle-aux-Grues, killing three people.