Canadian riding equivalents

[Hatman 🍁]

Ottawa Centre - Trinity-Spadina

[Hatman 🍁]

Ottawa South - Don Valley West
Ottawa-Vanier - Toronto Centre or Westmount-Ville Marie
Ottawa West-Nepean - York Centre

[Hatman 🍁]

Ottawa South has some rather wealthy bits (Alta Vista in particular). Maybe not as wealthy DVW. Maybe St. Paul's is a better fit. I was just thinking that Heron Gate and Thorncliffe Park are really poor neighbourhoods close to affluent neighbourhoods.

I picked York Centre because it is a swing riding, with a large Jewish population. OWN has the highest Jewish population in the Ottawa area, I think.

[Hatman 🍁]

OK I see your logic, though it's kind of hard because Ottawa's "Jewish" neighborhoods are probably about the same percentage of the population as they are in say, the Annex in Toronto. 

Is Ottawa West-Nepean's "Ottawa" part still pre-war city or is it more postwar suburban infill development?

It's mostly post-war, but it has some older neighbourhoods, like Britannia.