Well, to give you an idea, several years back (well, 2 decades, mabee)
a Fiat was almost worthless in Kitchener Ontario, yet was in fairly
high demand only 60 miles away in Toronto. Toronto had a good service
dealer. Kitchener did not.

Stratford, about 30 miles or so the other way, had a reasonable
service dealer, and they had a reasonable value. Guelph, half way
between Kitchener and Toronto had a large Italian population (as does
Toronto) and they sold pretty good their too, even though their dealer
was a crook.

A Citroen or Renaul was a hard sell in Ontario - so was a Peugot. They
sold quite well in Quebec.

Up untill a year or so ago, a used Ford Escort (basically a rebadged
Mazda 323) sold for about half what a mazda sold for here in
Kitchener. Now they fetch as much, or even more. In Toronto you can
still pick up an Escort for a pretty reasonable price.
Part of the reason MAY be that both the local Ford and MAzda dealer
are owned and operated by the same concern??? (in Waterloo - not
Kitchener ) Kitchener and Waterloo are "twin cities" - can't tell them
apart.

So, service availability, dealer reputation, and ethnic makeup of the
area all affect used car prices on a location to location basis.

Also, used cars in a "depressed" area generally sell for significantly
less than in a "booming" area, because there is a higher demand. In a
rural area, you may find the big cars go for a premium, and small cars
are a hard sell, because people want a larger, more comfortable car
for long distance driving on sub-optimal roads.

Lots of influences - not always easy to figure out.

Try going to kbb.com (kelly blue book). Select a few cars. Then change zip
codes. that will get you your answer.

Jeff

the KBB value on my windstar dropped $1000 when I moved from MS to OH.