578. Opal, Alberta (1921 census)
578. Opal was a census subdivision in Alberta, recorded in the 1921 Census of Canada with a population of 2,738. The administrative centroid was at approximately 54.022°N, 113.357°W.
Population
In 1921, 578. Opal had a population of 2,738: 1,490 male and 1,248 female residents. Population density was 8.6 people per square mile.
Boundary continuity (non-identical overlaps)
Spatial polygon overlaps with adjacent census years where the boundary shifted enough that the SAME_AS chain didn't merge them. These show where the territory came from and went to even when it isn't tracked as the same persistent place.
Earlier boundary forms
- In an earlier year, this CSD was contained in 226 townships, 1911 (4.3% share).
Neighbouring Census Subdivisions in 1921
In the 1921 census, 578. Opal shared boundaries with:
Full census record, 1921
The 1921 census recorded 39 measurements for this Census Subdivision across 2 categories. Tables below are collapsible.
Population & families (3 variables)
| Variable | Value |
|---|---|
| POP F | 1,248 |
| POP M | 1,490 |
| POP TOT | 2,738 |
Other recorded variables (36 variables)
| Variable | Value |
|---|---|
| ANGLICANS | 154 |
| ASIA CHINESE AND JAPANESE | 12 |
| BAPTISTS | 28 |
| BRETHREN | 6 |
| BRIT BORN F | 54 |
| BRIT BORN M | 94 |
| BRIT ENG | 342 |
| BRIT IRISH | 109 |
| BRIT OTHER | 69 |
| BRIT SCOTCH | 115 |
| CAN BORN F | 783 |
| CAN BORN M | 854 |
| EASTERN RELIGIONS | 12 |
| EUR AUSTRIAN | 290 |
| EUR BELGIAN | 16 |
| EUR DUTCH | 12 |
| EUR FRENCH | 578 |
| EUR GERMAN | 117 |
| EUR ITALIAN | 9 |
| EUR OTHER | 72 |
| EUR POLISH | 214 |
| EUR RUSSIAN | 25 |
| EUR SCANDINAVIAN | 25 |
| EUR UKRAINIAN | 728 |
| FOREIGN BORN F | 411 |
| FOREIGN BORN M | 542 |
| GREEK CHURCH | 763 |
| INDIAN | 2 |
| LUTHERANS | 40 |
| METHODISTS | 118 |
| MORMONS | 3 |
| OTHER SECTS | 7 |
| PRESBYTERIANS | 158 |
| PROTESTANTS | 11 |
| ROMAN CATHOLICS | 1,437 |
| UNSPECIFIED | 3 |
Identifiers
- TCP UID:
AB202003— year-scoped identifier from the Canadian Census Subdivision boundary file - Persistent place ID:
PLACE_AB202003— computed from spatial-overlap chains across census years - Wikidata: not yet grounded. This page covers a place whose persistent identity has not yet been linked to a Wikidata entity. Identification is via TCP UID and spatial polygon only.
Sources
Census tabulations from the 1921 Census of Canada, transcribed and georeferenced by the Canadian Peoples / TCP project, hosted at the HGIS Lab, University of Saskatchewan. Persistent place identity computed from spatial-overlap chains across all available census years (1851–1921). Identity grounding to Wikidata performed via the HGIS Canada Knowledge Graph project's MCP-assisted disambiguation pipeline. See the About / Methodology page for the full data pipeline.
Cite this page
Clifford, J. (2026). "578. Opal, Alberta (1921 census)" in HGIS Canada Knowledge Graph. Retrieved from https://jimclifford.ca/hgiscanada/places/ab/578-opal-ab202003-1921/.