The 2021 census credits Sorel-Tracy with 35,165 residents and 17,069 occupied private dwellings across 57.28 km², or 614.0 people per square kilometre. The city is ageing along with its buildings: the median age reaches 53.2, and 39.9% of households hold a single person. Among the dwellings, 52.6% are single detached houses. Above all, 4,435 dwellings date from 1960 or earlier and 6,955 from 1961 to 1980, against only 570 built between 2016 and 2021, while 935 were calling for major repairs. So the box is not here to raise anything new: it empties roofs, bathrooms, basements and replaced windows.
Vieux-Sorel is no ordinary neighbourhood. It is a grid drawn in the early 1780s by Major John French and Surveyor General Samuel Holland: perfectly square blocks around the Carré Royal, classified as a heritage property on March 24, 1961, whose walkways trace the Union Jack, and streets that borrow their names from the royal family — Charlotte, George, du Roi, du Prince. That regular plan leaves narrow lots and short driveways. This is where the size marker earns its keep: a 10-yard is a 20-yard filled halfway — the same rectangle on the ground, simply lower. Going down a size never lengthens a driveway.
In the Tracy sector — the former town that became an official sector at the merger of March 15, 2000 — and in the belts built between 1961 and 1980, driveways stretch out and take the 20-yard, about the size of a Dodge Caravan. The PROTEC-O-SOL floor, planks included, spreads the load over the asphalt; our drivers' tip fits in one sentence: lay four flattened cardboard boxes or a thin sheet of plywood where the box will land, because under the paint there is nothing but steel. And if you are hunting for the name of your own sector, the city officially delimits only eight, its electoral districts: Bourgchemin, Richelieu, Saint-Laurent, Vieux-Sorel, Du Faubourg, Des Gouverneurs, Des Patriotes and Pierre-De Saurel.
Statistics Canada, 2021 Census Profile (Sorel-Tracy, V); Répertoire du patrimoine culturel du Québec, Carré Royal record; Commission de toponymie du Québec; by-law 2461 of the City of Sorel-Tracy — consulted August 17, 2026.