La Haute-Yamaska Regional County Municipality
La Haute-Yamaska is a regional county municipality in the Montérégie 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 as within the Brome-Missisquoi RCM.Subdivisions
There are 8 subdivisions within the RCM:
;Cities & Towns
;Municipalities
;Townships
;Villages
Mother tongue from Canada 2016 Census
| Language | Population | Pct |
| French only | 80,650 | 91.3% |
| English only | 2,790 | 3.2% |
| Both English and French | 655 | 0.7% |
| Other languages | 4,210 | 4.8% |
Highways
Highways and numbered routes that run through the municipality, including external routes that start or finish at the county border:
- Autoroutes
- *
- Principal Highways
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- *
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- Secondary Highways
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- External Routes
- * None
