|region||Pays de la Loire|
|Community association||Maine Saosnois|
|surface||10.51 km 2|
|Residents||503 (January 1, 2017)|
|Population density||48 inhabitants / km 2|
Saint-Longis is a French municipality with 503 inhabitants (as of January 1 2017) in the department of Sarthe in the region Pays de la Loire ; it belongs to the Arrondissement of Mamers and the Canton of Mamers . The inhabitants are called Longonia .
Saint-Longis is located about 40 kilometers north-northeast of Le Mans . Saint-Longis is surrounded by the neighboring communities of Aillières-Beauvoir in the north, Marollette in the northeast, Mamers in the east, Saint-Rémy-des-Monts in the southeast, Pizieux in the south, Saosnes in the south and southwest, Panon in the southwest, Vezot in the west as well Villaines-la-Carelle in the north-west. The parish is part of the Normandy-Maine Regional Nature Park .
|Source: Cassini and INSEE|
- Saint-Pierre-et-Saint-Longis church from the 11th century, alterations from the 14th and 19th centuries
- 19th century Fossard mill