David -
There are roughly 29 cities in Maricopa county, which is home to 4 million people and covers almost 10,000 square miles -- it's bigger than 6 states. There is not (to my knowledge) any one agent who has the expertise to provide the level of detail you are looking for for every city in Maricopa County.
Even with full access to the MLS it is extremely difficult to gather some of this information. You may find some info on the maricopa.gov website. city-data.com is also a good resource. ARMLS (Arizona Regional MLS) covers the vast majority of Maricopa County (and parts of Pinal county) and they have some statistics available (though not to the level you are looking for) here:
http://armls.com/stats.html
Good for you for doing your research, but you may want to take a more "high level" approach to try to narrow down where in Maricopa county to go into more detail, otherwise you may find yourself completely buried in mounds of data.
- Wed Oct 15 2008, 09:17