CAs, consult Statistics Canada’s Census Dictionary article for <a href="https://www12.statcan.gc.ca/census-recensement/2021/ref/dict/az/Definition-eng.cfm?ID=geo009" class="external-link">Census
metropolitan areas (CMA) and census agglomerations (CA)</a>. All CMAs
and some CAs have data at the Census tract level, but most CAs do not.
The 2021 Census has 41 CMAs and 9 CAs with Census tracts that have their
own defined geography. There are a further 102 CAs without Census tracts
that do not have their own d