Depends on your definition of a wagon. Mine is a car line that has coupes, sedans, and wagons based on essentially the same chassis. Under my definition I got one of the last wagons from Ford,2005 Focus, they may have continued wagon for another year. After that a four door hatchback.
On a side note, in our various conversations about “fallen flags”, in my opinion Studebaker could have sold a few more cars if wagons were included in their 47-53 models.