The original city of Saint-Lambert (as it existed prior to 1969) is located from the Country Club of Montreal golf course to the border of the Le Vieux-Longueuil borough.

Following the establishment of the railway in 1852 and the completion of the Victoria Bridge in 1859, the village received a permanent link to the island of Montreal.

Suburban growth from Montreal in this period also affected Saint-Lambert, as well as many of the older communities on the South Shore.

Rare exotics which benefit from St-Lambert's favorable microclimate include Japanese maple and tulip tree.

Most trees in Saint-Lambert show some evidence of damage from an ice storm in January 1998 and a severe thunderstorm in June 2008.

As in other parts of Greater Montreal, lengthy spells of hot humid weather are common in summer, and thunderstorms frequently occur.

Heavy snow is usual in winter and several damaging ice storms have occurred over the town's history.

[16] In terms of ethnic origin, 50.6% identified as Canadian, 39.6% French, 9.7% Irish, 7.8% English, 6.4% Scottish, 4.1% Italian, 3.7% German, 2.4% First Nations, 1.7% Belgian, 1.7% Spanish, and 1.6% Chinese.

[18] Most of Saint-Lambert's commercial activity is based on Victoria Avenue, particularly on the part of the strip in the city's downtown (between Riverside Drive and the CN tracks), known as "the Village".

On this part of Victoria alone, there are around 44 businesses that sell durable and semi-durable goods; 22 cafés, bistros and restaurants and 960 street parking spaces.

[20] Saint-Lambert is also home to Groupe Serdy, the owner of cable television specialty channels Évasion and Zeste.

Roctest, a firm that specializes in making instrumentation for civil engineering projects also has its head office and factory in Saint-Lambert.

Other notable Saint-Lambert businesses include Les Éditions Héritage book publisher and a Dare Foods (formerly Lido Biscuit) cookie factory.

One of these is Saint-Lambert Days, which takes place over a four-day period in late August and features live concerts and performances, games, and sidewalk sales.

Despite this, in federal politics the riding tends to usually go in favour of the Bloc Québécois, because it includes a considerable portion of the more sovereigntist borough of Le Vieux-Longueuil in Longueuil.

The city of Saint-Lambert is located in the federal riding of Brossard-Saint-Lambert, and its Member of Parliament is Alexandra Mendes of the Liberal Party.

In provincial politics, Saint-Lambert forms part of the Laporte riding and its Member of the National Assembly is Nicole Ménard of the Quebec Liberal Party.

The provincial riding is named after Pierre Laporte, a Quebec government cabinet minister who was kidnapped from outside his Saint-Lambert home and murdered by the Front de libération du Québec in the October Crisis of 1970.

Via Rail serves Saint-Lambert railway station with its daily Montreal-Quebec City, Montreal-Gaspé and Montreal-Halifax trains.

Amtrak, the U.S. national passenger rail system, also provides daily service to Saint-Lambert railway station, operating its Adirondack in both directions between Montreal and New York City, using the Victoria Bridge.

Saint-Lambert railway station is also served by commuter rail on the Réseau de transport métropolitain's Mont-Saint-Hilaire line.

[25] At the intercollegiate level, St. Lambert is represented by the Champlain College Saint-Lambert Cavaliers, which field both men's and women's teams in badminton, basketball, cross country running, Canadian football, rugby union, soccer and volleyball.

[27] Saint-Lambert is also home to several sports venues including the Eric Sharp Arena, an indoor swimming pool and a recreation centre.

It is also served by a regional French-language weekly newspaper, Le Courrier du Sud, which is based out of neighbouring Longueuil