Focus on Geography Series, 2021 Census of Population
Sarnia, City
Population, 2021 and 2016 censuses
36
Provincial population rank: 36
National population rank: 83 of 4,831
0.6%
In 2021, the enumerated population of Sarnia (City), was 72,047, which represents a change of 0.6% from 2016. This compares to the provincial average of 5.8% and the national average of 5.2%.
0.8%
In 2021, there were 32,188 private dwellings occupied in Sarnia (City), which represent a change of 0.8% from 2016.
439.6
The land area of Sarnia (City) is 163.9 square kilometres and the population density was 439.6 people per square kilometre.
Population change for Sarnia (City) and higher level geographies, 2016 to 2021
Sarnia (City) — Neighbouring census subdivisions, population change, 2016 to 2021
| Census subdivision (CSD) name | Type | Population | ||
|---|---|---|---|---|
| 2021 | 2016 | % change | ||
| Lambton Shores | MU | 11,876 | 10,631 | 11.7 |
| Plympton-Wyoming | T | 8,308 | 7,795 | 6.6 |
| St. Clair | TP | 14,659 | 14,086 | 4.1 |
| Sarnia 45 | IRI | 648 | 639 | 1.4 |
| Enniskillen | TP | 2,825 | 2,796 | 1.0 |
| Point Edward | VL | 1,930 | 2,037 | -5.3 |
Ontario [PR] — Census subdivisions with 5,000-plus population with the highest population growth
| Census subdivision (CSD) name | Type | Population | ||
|---|---|---|---|---|
| 2021 | 2016 | % change | ||
| East Gwillimbury | T | 34,637 | 23,991 | 44.4 |
| The Blue Mountains | T | 9,390 | 7,025 | 33.7 |
| New Tecumseth | T | 43,948 | 34,242 | 28.3 |
| Thorold | CY | 23,816 | 18,801 | 26.7 |
| Seguin | TP | 5,280 | 4,304 | 22.7 |
Ontario [PR] — Census subdivisions with 5,000-plus population with the lowest population growth
| Census subdivision (CSD) name | Type | Population | ||
|---|---|---|---|---|
| 2021 | 2016 | % change | ||
| Dryden | CY | 7,388 | 7,749 | -4.7 |
| Bayham | MU | 7,096 | 7,396 | -4.1 |
| Fort Frances | T | 7,466 | 7,739 | -3.5 |
| Kirkland Lake | T | 7,750 | 7,981 | -2.9 |
| Temiskaming Shores | CY | 9,634 | 9,920 | -2.9 |
- Date modified: