Downtown condos,houses, apartments, all over town.
With 44K people leaving annually, you’d have about 15K households per year leaving.
Don’t you have any vacancies on your street? Maybe we need a survey on this forum. How many rentals, and how many vacancies are on your street?
I have 6 rentals on my street that I know of, and I’ve only met 12 of the neighbors. So half the people I met are renting.
Two homes in my neighborhood are for sale, and they are vacant. One belonged to a deceased man, and the other to a landlord whose tenants just moved out. Neither of these is due to a family leaving the area.
sdrealtor may know where all these vacancies are, as it sounds you are looking for a cluster or pattern?