Châteauguay or Longueuil: comparison for buyers
Choose two or three cities from my guides. The figures come from the same sources as the guides.
Median prices
| Châteauguay | Longueuil |
|---|
| Single-family home |
$540,00092 sales · +2% year over year
|
Vieux-Longueuil$625,000116 sales · stable year over year
Saint-Hubert$587,500129 sales · stable year over year
|
|---|
| Condo |
last 4 quarters$383,45063 sales · +5% year over year
|
Vieux-Longueuil$398,500116 sales · +5% year over year
|
|---|
| Plex (2 to 5 units) |
—No published median
|
Vieux-Longueuil$840,00051 sales · +2% year over year
|
|---|
Median price = half of the properties sold for less, the other half for more. The price of a specific property varies.
Source: Centris, Q3 2026 (July to September).
Châteauguay: City of Châteauguay, Q3 2026 (July to September), change compared with the same quarter of 2025. For condos, Centris does not publish a quarterly price due to too few transactions: the figures cover the last four quarters. For plexes, the number of sales (22 over four quarters) is too low for Centris to publish a median price. (Centris – Châteauguay statistics)
Longueuil: Centris statistics by borough (no data published for the city as a whole). (Centris – Vieux-Longueuil)
At a glance
Châteauguay
- Population (2021 census)
- 50,815 residents (+6.1% since 2016)
- Occupied private dwellings (2021)
- 19,917
- Average home value (2026 budget)
- $495,043
Longueuil
- Population (2021 census)
- 254,483 residents (+6% since 2016)
- Boroughs
- Le Vieux-Longueuil, Saint-Hubert, Greenfield Park
Transit
Châteauguayexo buses leave from the Châteauguay terminus for Angrignon metro station and, at rush hour, for downtown Montréal (Terminus Centre-ville). Highway 30 crosses the city. To reach Montréal, Route 138 leads to the Honoré-Mercier Bridge; an eastbound reserved lane helps avoid part of the congestion on the approach to the bridge.
LongueuilThe metro’s yellow line runs from Longueuil–Université-de-Sherbrooke station to downtown Montréal, with the RTL bus terminus. The Longueuil–Saint-Hubert exo station is on the Mont-Saint-Hilaire line. The Jacques Cartier Bridge and the Louis-Hippolyte-La Fontaine Tunnel connect the city to Montréal; the nearest REM station is Panama, in Brossard.
Education
ChâteauguayCentre de services scolaire des Grandes-Seigneuries for French-language education and New Frontiers School Board for English-language education (including Howard S. Billings Regional High School, in Châteauguay). There is no cégep in Châteauguay; an exo bus line (90) serves Cégep André-Laurendeau, in LaSalle, at weekday rush hours.
LongueuilLongueuil campuses of Université de Sherbrooke and Université de Montréal, Cégep Édouard-Montpetit, École nationale d’aérotechnique.
Health
ChâteauguayHôpital Anna-Laberge, on boulevard Brisebois (Santé Québec – Montérégie-Ouest): emergency department open 24 hours a day, birthing centre, pediatrics, surgery and oncology.
LongueuilHôpital Charles-LeMoyne (Greenfield Park), Hôpital Pierre-Boucher (Vieux-Longueuil).
Welcome tax
ChâteauguayChâteauguay applies an additional bracket: 0.5% up to $62,900, 1% up to $315,000, 1.5% up to $615,600, then 3% on the portion above $615,600 (rates in effect since January 1, 2026, for information only). For a house at the median price of $540,000, below this threshold, that comes to about $6,211, the same as with Québec’s base rates. The City requires payment in a single instalment, within 30 days of the bill.
LongueuilIn 2026, Longueuil applies 1.5% from $315,000 to $630,100, then 3% above $630,100 (rates as of October 2026, for information only; confirm with the City).
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