Cornwall’s Population Estimated to be over 54,000
April 2, 2026Cornwall Ontario – Cornwall’s population has topped 54,000 according to the latest post-census population estimates from Statistics Canada.
Statistics Canada estimates Cornwall’s population to be 54,346 in 2025, representing a change in population of 10.02% from 2020 to 2025. The population of SDG is estimated to be 72,324 while the Ontario portion of Akwesasne is estimated at 1,947. In all, the combined Cornwall, SDG and Akwesasne population is estimated to be 128,617 – a growth of 7.15% from 2020 to 2025.
Statistics Canada (StatCan) produces population estimates that are widely considered to be of high quality and are foundational to Canadian society, used for everything from federal funding allocation to calculating economic indicators. StatCan uses a multi-layered approach that combines the Census of Population (taken every 5 years) with administrative data to create estimates, ensuring data is both timely and reliable. Between censuses, StatCan adds births and incoming immigrants/non-permanent residents, while subtracting deaths and emigrants. Population estimates are usually higher than the raw census counts because they adjust for the estimated people who were missed.
| Geography | 2025 | 2020-2025 Change | 2020-2025 Change% | Average Annual Growth | Average annual growth rate |
| North Stormont | 7,946 | 492 | 6.44% | 98 | 1.29% |
| South Stormont | 14,602 | 736 | 5.23% | 147 | 1.05% |
| North Dundas | 12,706 | 556 | 4.55% | 111 | 0.91% |
| South Dundas | 11,943 | 644 | 5.64% | 129 | 1.13% |
| North Glengarry | 10,772 | 512 | 4.88% | 102 | 0.98% |
| South Glengarry | 14,355 | 619 | 4.49% | 124 | 0.90% |
| SDG | 72,324 | 3,559 | 5.11% | 712 | 1.02% |
| Cornwall | 54,346 | 4,975 | 10.02% | 995 | 2.00% |
| Akwesasne (Part) 59 | 1,947 | 132 | 7.19% | 26 | 1.44% |
| SDG Census Division | 128,617 | 8,666 | 7.15% | 1,733 | 1.43% |
Source: Statistics Canada. Table 17-10-0155-01 Population estimates, July 1, by census subdivision, 2021 boundaries
2026 Census of Canada
The 2026 Census of Canada, the 29th national census, will take place in May 2026 and will collect vital data on population. The 2026 Census long-form questionnaire is available on the Statistics Canada website
Additional Info
- Population Estimates – Cornwall and SDG 2020-2025 – StatCan
- Demographic Profile of Cornwall – Environics
- EOTB has also released their 2026 Local Labour Market Plan
- A wide variety of reports, articles and documents are available in the Resources Section of this website.