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 community is grounded to Wikidata Q7095534. 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.

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:

• 548. Sturgeon
• 577. Unity
• 579. Hazelwood
• 608. Tawatinaw

Full census record, 1921

The 1921 census recorded 39 measurements for this Census Subdivision across 3 categories.

Population & families (1921). This community's record includes 2,738 total population, 1,490 males in the population, 1,248 females in the population, 854 males born in Canada, 783 females born in Canada, 542 males born outside the British Empire, 411 females born outside the British Empire, 94 males born in the British Empire (excluding Canada), 54 females born in the British Empire (excluding Canada). (Source: 1921 Census of Canada, V1T16.)

Ethnic origin (1921). This community's record includes 728 persons of Ukrainian origin, 578 persons of French origin, 342 persons of British origin (English), 290 persons of Austrian origin, 214 persons of Polish origin, 117 persons of German origin, 115 persons of British origin (Scotch / Scottish), 109 persons of British origin (Irish), 72 persons of other European origin, 69 persons of British origin (other), 25 persons of Russian origin, 25 persons of Scandinavian origin, 16 persons of Belgian origin, 12 persons of Chinese or Japanese origin, 12 persons of Dutch origin, 9 persons of Italian origin. 2 persons recorded under the official census category "Indian"; corresponds to what is now described as Indigenous (First Nations; in northern enumerations also Inuit) origin. "Indian" was simultaneously a census category and the legal/administrative term under the Indian Act (1876). (Source: 1921 Census of Canada, V1T27.)

Religion (1921). This community's record includes 1,437 Roman Catholics, 763 Greek (Orthodox) Church adherents, 158 Presbyterians, 154 Anglicans (Church of England), 118 Methodists, 40 Lutherans, 28 Baptists, 12 adherents of Eastern religions, 11 Protestants (general / no denomination specified), 7 adherents of other sects (residual category in 1921), 6 Brethren, 3 Mormons (Latter-day Saints), 3 persons whose religion or origin is unspecified. (Source: 1921 Census of Canada, V1T27; V1T38.)

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: Q7095534
• Wikipedia (EN): https://en.wikipedia.org/wiki/Opal,_Alberta
• Wikipédia (FR): https://fr.wikipedia.org/wiki/Opal_(Alberta)

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/.