Looks like they include a lot of land for whatever reason that's not really "city" - and don't include some that is.
I don't know what the job climate is like there, or life in general, but it seems like a fairly nice place: college town, desert climate, but they also have a ski resort (!) just out of town, because to the north east they have a 3000 meter mountain that juts up out of the plain.
It used to be much worse -- a lot of the land grab was due to Arizona law years ago. But Tucson, as it has grown, has seen a lot of infill. Even so, places that look empty often have 1 per 3 acre housing.
Interesting, thanks for all the info! I've only been there once, and it the hills outside town were on fire at the time, but it still seemed like a cool neighborhood and cool town over all if you can handle the desert thing...
