Living in Sainte-Julie or Rosemère: changing shores

Looking at a new semi-detached home near Rosemère inevitably means looking across the island of Montreal: Rosemère is in the Laurentians, on the North Shore, and Sainte-Julie is in Montérégie, on the South Shore.

So before comparing houses, it is worth comparing towns. What actually changes, day to day, between living in Sainte-Julie or Rosemère? This article sets public data side by side: Statistics Canada, the Institut de la statistique du Québec, the two municipalities and Centris.

One rule guides this comparison: Rosemère has real strengths, and the point here is not to say which town is better. Each has its own character; it is up to you to see which one suits you.

What the two towns have in common

Despite the river between them, Rosemère and Sainte-Julie resemble each other in several ways. Both belong to the Communauté métropolitaine de Montréal and to the same census metropolitan area. Both are in zone C of the Autorité régionale de transport métropolitain. And both are towns of homeowners: according to the 2021 Census, 88.1% of households in Rosemère and 79.8% in Sainte-Julie own their home.

Incomes are also in the same range: the median total household income was $120,000 in Rosemère and $107,000 in Sainte-Julie in 2020. Average household size is close (2.7 and 2.5 people), and cars dominate the commute, used by 88.0% of commuters in Rosemère and 90.2% in Sainte-Julie.

Living in Sainte-Julie or Rosemère: a question of scale

Where the two towns clearly differ is in size. Separated from Sainte-Thérèse-de-Blainville in 1947 and incorporated as a town in 1958, according to the Commission de toponymie du Québec, Rosemère had 14,198 residents on July 1, 2025, according to the ISQ; Sainte-Julie had 30,981. In the 2021 Census, Rosemère covered 10.68 km², for a density of 1,318.7 people per square kilometre; Sainte-Julie spreads over 48.49 km², at 619.6 people per square kilometre. Rosemère's population is also a little older: its median age was 46.4, compared with 44.4 in Sainte-Julie.

The housing landscape follows suit. In Rosemère, 80.6% of dwellings are detached houses, and semi-detached homes account for just 1.0%; in Sainte-Julie, detached houses make up 66.8% of dwellings, semi-detached homes 5.8%, and apartments in buildings under five storeys 24.4%. As for age, 20.3% of Rosemère dwellings date from 1960 or earlier; in Sainte-Julie, most were built after 1960, with only 2.2% before.

A train station on one side, free buses on the other

Rosemère is named after a railway station and still has one: exo line 12, Saint-Jérôme, offers 14 weekday departures toward Montreal from there. In the 2021 Census, 6.8% of Rosemère commuters used public transit, compared with 3.8% in Sainte-Julie.

Sainte-Julie has no train station. On the other hand, the town provides local public transit free of charge, for everyone, at all times, on every route. In the Vilamo neighbourhood, every home is less than 300 m from a bus stop, and a park-and-ride lot is about 7 minutes from BÉAcité. For errands, the neighbourhood's commercial strip is within walking distance: medical services, a public market, restaurants, a Caisse Desjardins, a pharmacy. The drive itself, with its bridges, its toll and its bridge-tunnel, is covered in our guide to getting from Rosemère to Sainte-Julie.

The river or the mountain

According to the Commission de toponymie, Rosemère is a town bathed by the Rivière des Mille Îles, and the town itself speaks of its leafy, green character. That closeness to water and trees is a setting that doesn't move with you.

In Sainte-Julie, nature takes another form. The Vilamo neighbourhood, about 33.5 hectares, is laid out around the Vallée du Richelieu golf club; it has 600,000 sq ft of green space, more than 15% of its area, and a promenade reserved for pedestrians, bikes and electrified transportation. Six builders are putting up several types of homes there, from single-family houses to condos, under shared architectural standards and with dense landscaping that protects privacy. Mont-Saint-Bruno National Park borders the town, Ski Saint-Bruno is 8.8 km from Geoffrion Street, and Sainte-Julie's network of walking and cycling paths exceeds 40 km. BÉAcité's website also mentions three years of free membership at Espace Tonik Nature.

Which language is spoken in daily life?

Rosemère appears on the list of municipalities covered by section 29.1 of the Charter of the French Language, which gives it bilingual status. In the 2021 Census, English was the first official language spoken by 18.2% of its residents, and 70.4% knew both French and English. Sainte-Julie does not have that status: it is a French-speaking town, where English is the first official language spoken by 2.5% of residents. It is good to know before you choose, without jumping to conclusions.

For families it concerns, the Riverside School Board includes Sainte-Julie in its zones. Eligibility for English-language instruction is governed by the Charter, and no seat is held in advance: check directly with the school board.

The resale market, without shortcuts

According to Centris, over the four quarters ending in the third quarter of 2026, the median price of resold single-family houses was $877,722 in Rosemère and $666,350 in Sainte-Julie. The average time to sell was 40 days in Rosemère and 18 days in Sainte-Julie. Keep in mind that these are resales of all kinds of houses, not the price of a new semi-detached home. No BÉAcité price is published; the sales director will give it to you.

If it is the wish for a home built to your taste that has you looking across the river, our article on the customizable new home near Rosemère details the options available before construction. The sales office at 435 Geoffrion Street is open Monday to Friday, from 9 a.m. to 4 p.m.; Saturdays, Sundays and evenings, by appointment, at 514-812-9633 or ventes@beacite.com.

Conclusion

Living in Sainte-Julie or Rosemère means choosing between two towns of homeowners that share the same metropolitan region, but not the same shore. Rosemère has its train station, its river and its bilingual status; Sainte-Julie has more space, free local buses, the Vilamo neighbourhood and the mountain next door. Neither is better in absolute terms: the question is which one fits the way you live, and a visit in person remains the best way to answer it.