| Le Haut-Saint-Laurent | |
| Settlement Type: | Regional county municipality |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Type2: | Region |
| Subdivision Name2: | Montérégie |
| Established Title: | Effective |
| Established Date: | January 1, 1982 |
| Seat Type: | County seat |
| Seat: | Huntingdon |
| Government Type: | Prefecture |
| Leader Title: | Prefect |
| Leader Name: | Alain Castagner |
| Area Footnotes: | [1] |
| Area Total Km2: | 1242.20 |
| Area Land Km2: | 1173.51 |
| Population Total: | 22,454 |
| Population As Of: | 2016 |
| Population Density Km2: | 19.1 |
| Population Blank1 Title: | Change 2011–2016 |
| Population Blank1: | 5.9% |
| Population Blank2 Title: | Dwellings |
| Population Blank2: | 12,016 |
| Population Note: | Population excludes incompletely enumerated First Nations reserves |
| Timezone: | EST |
| Utc Offset: | −5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | −4 |
| Postal Code Type: | Postal code(s) |
| Area Code: | 450 and 579 |
Le Haut-Saint-Laurent (Upper Saint Lawrence) is a regional county municipality in southwestern Quebec, Canada, in the Montérégie region. Its seat is in Huntingdon. It is named for the Saint Lawrence River, which forms its western and its northwestern boundaries.
The RCM was formed on January 1, 1982, from most of historic Huntingdon County.
There are 13 subdivisions and one native reserve within the RCM:
| Canada Census Mother Tongue - Le Haut-Saint-Laurent Regional County Municipality[2] | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census | Total | ||||||||||||||||||
| Year | Responses | Count | Trend | Pop % | Count | Trend | Pop % | Count | Trend | Pop % | Count | Trend | Pop % | ||||||
| 14,185 | 1.5% | 64.0% | 6,730 | 9.4% | 30.4% | 400 | 15.9% | 1.64% | 845 | 65.7% | 3.8% | ||||||||
| 13,980 | 4.7% | 66.62% | 6,150 | 1.7% | 29.31% | 345 | 16.9% | 1.64% | 510 | 29.7% | 2.43% | ||||||||
| 14,665 | 3.6% | 67.47% | 6,050 | 4.9% | 27.84% | 295 | 37.2% | 1.36% | 725 | 20.8% | 3.34% | ||||||||
| 14,160 | 1.8% | 65.59% | 6,360 | 9.2% | 29.46% | 470 | 44.6% | 2.18% | 600 | 23.7% | 2.78% | ||||||||
| 13,915 | n/a | 64.04% | 7,005 | n/a | 32.24% | 325 | n/a | 1.50% | 485 | n/a | 2.23% | ||||||||
Highways and numbered routes that run through the municipality, including external routes that start or finish at the county border:[3]