People & demographics
A growing, family-heavy, surprisingly diverse city
Oshawa's 2021 census profile tells the story of a city in fast-forward: growing at roughly double the provincial rate, with a young median age, strong family concentrations, and a top-tier household income for its price point. Here are the numbers, straight from Statistics Canada.
175,383
Population, 2021 census
29th most populous city in Canada
+10.0%
Growth 2016 to 2021
Ontario grew 5.8%; Canada 5.2%
145.7 km²
Land area
City of Oshawa municipal boundaries
1,204
People per km²
Census population density
Age structure
The median age sits around 39 to 41, and the largest cohort is working-age adults. Families with children are a defining feature, which shows up in school demand and the north end's playground-and-new-build culture.
- 0 to 17 years 36,625
- 18 to 64 years 109,435
- 65 plus years 29,325
Money matters
Median household income before taxes is about $102,000 across the Oshawa area (2020 reference year), with average household income around $120,500. After-tax household average is roughly $86,200, and the average after-tax income among recipients is about $48,960.
That income-to-price ratio is the arithmetic behind Oshawa's growth: GTA salaries with markedly lower housing costs than anywhere closer to Toronto.
Who speaks what
English is the mother tongue of about 79.5% of residents and overwhelmingly the language spoken at home. The city is growing more diverse, with vibrant communities speaking Urdu, Chinese languages, Tamil, Tagalog, and Spanish.
- English 79.5% Mother tongue
- Other (non-official) 17+% Urdu, Chinese, Tamil, Tagalog, Spanish, and more
- French 1.7% Mother tongue
Read the room
What the demographics mean for newcomers
Schools are full of kids. Buy in a catchment you like and expect waitlists for popular programs during peak years. The city is building new schools to keep up, including a new north-end secondary school.
The commute mix is real. With median incomes roughly on par with the GTA while homes cost less, many households pair a Toronto or Durham job with an Oshawa address, which keeps the GO train and 401 busy.
Retirees and families share the south. The lakefront and central bungalow belts pull downsizers and seniors, while the north end pulls young families, so the social texture genuinely varies by neighborhood.
Numbers are averages. Your street is specific.
We will show you which blocks match your family's stage of life, school needs, and budget.