La Haute-Yamaska Regional County Municipality

La Haute-Yamaska
Regional county municipality
Coordinates: 45°24′N 72°44′W[1]
Country	Canada
Province	Quebec
Region	Estrie
Effective	March 3, 1982
County seat	Granby
Government [2]
• Type	Prefecture
• Prefect	Pascal Russell
Area [3]
• Total	650.40 km^2 (251.12 sq mi)
• Land	636.00 km^2 (245.56 sq mi)
Population  (2021)[3]
• Total	92,796
• Density	145.9/km^2 (378/sq mi)
• Change 2016-2021	5.1%
• Dwellings	41,563
Time zone	UTC−5 (EST)
• Summer (DST)	UTC−4 (EDT)
Area code(s)	450 and 579
Website	www.haute-yamaska.ca
[4]

La Haute-Yamaska (French pronunciation: [la ot jamaska], lit. 'The Upper Yamaska') is a regional county municipality in the Estrie region of Quebec, Canada. Its seat is Granby.

It is named for its position at the height of the Yamaska River, which cuts through its southern part. It rises at Brome Lake located in neighbouring Brome-Missisquoi Regional County Municipality.

On January 1, 2010, the city of Bromont left La Haute-Yamaska; it was reclassified to the Brome-Missisquoi RCM.^[5]

In 2021, it was transferred to the Estrie region from Montérégie.^[6]

Subdivisions

There are 8 subdivisions within the RCM:^[2]

Cities & Towns (2) Granby Waterloo

Municipalities (4) Roxton Pond Saint-Alphonse-de-Granby Saint-Joachim-de-Shefford Sainte-Cécile-de-Milton

Townships (1) Shefford

Villages (1) Warden

Demographics

Mother tongue from Canada 2021 Census^[3]

Language	Population	Pct (%)
French only	83,715	91.6%
English only	2,835	3.1%
Both English and French	1,075	1.2%
Other languages	3,330	3.6%

Highways

Highways and numbered routes that run through the municipality, including external routes that start or finish at the county border:^[7]

Autoroutes A-10

Principal Highways R-112 R-137 R-139

Secondary Highways R-211 R-241 R-243

External Routes None

References

1. "Banque de noms de lieux du Québec: Reference number 141094". toponymie.gouv.qc.ca (in French). Commission de toponymie du Québec.
2. "Répertoire des municipalités: Geographic code 470". www.mamh.gouv.qc.ca (in French). Ministère des Affaires municipales et de l'Habitation.
3. "Census Profile, 2021 Census: La Haute-Yamaska, Municipalité régionale de comté [Census division], Quebec". Statistics Canada. Retrieved September 8, 2021.
4. "Census Profile, 2021 Census, Statistics Canada - Validation Error".
5. "Modifications aux municipalités du Québec" (PDF) (in French). Institut de la statistique du Québec. p. 4. Retrieved November 25, 2019.
6. "La Haute-Yamaska et Brome-Missisquoi entrent dans le giron de l'Estrie". La Tribune. 8 July 2021. Retrieved October 15, 2021.
7. Official Transport Quebec Road Map