Laval vs Longueuil: Population & Income Compared

Choosing between Laval and Longueuil in the Montréal census metro area? These metrics — population, growth, median after-tax household income, and average age — offer a factual starting point. Here is a clear head-to-head.

Population & growth

Laval counted 438,366 residents in 2021, compared with Longueuil at 254,483. Size, however, is not the same as momentum. Laval's population rose 3.6% from 2016 to 2021, while Longueuil grew 6.1% over the same period.

In short: Laval leads on municipal population; Longueuil grew faster during the last census cycle.

Income

Median after-tax household income tells another part of the story. Laval households sat at $73,500 (median after tax), versus $62,000 in Longueuil. That gap matters for cost-of-living and labour-market conversations across the two cities.

Age profile

Average age was 42 years in Laval and 41.7 in Longueuil. Longueuil's younger profile contrasts with Laval in this census snapshot.

Quick comparison table

• Population (2021): Laval 438,366 · Longueuil 254,483
• Growth 2016–2021: Laval 3.6% · Longueuil 6.1%
• Median HH income (after tax): Laval $73,500 · Longueuil $62,000
• Average age: Laval 42 · Longueuil 41.7

Laval leads on population; Longueuil grew faster over 2016–2021; Laval posts higher median after-tax household income, with Longueuil slightly younger on average age.

Explore the full datasets

Dig into every section (households, labour, languages, dwellings) on the location profiles, or build your own side-by-side:

• Laval demographic profile
• Longueuil demographic profile
• Location Comparison tool — select Census subdivision, then Laval and Longueuil