Each year, the Arizona Department of Economic Security (ADES) Population Statistics Unit is responsible for preparing population estimates for each county, city, and town. These estimates rely heavily on building permit data supplied to ADES by local governments. NACOG is responsible for encouraging local governments to to submit their data, in addition to coordinating the regional review of draft estimates.
Population projections for counties, cities, towns, and some unincorporated areas are produced every five years by ADES. NACOG's role in this process is to gather local input and comments on the draft projections. Local input is important since the projections are only updated every years. In addition, all agencies are required to use official ADES projections for all planning activities.
As a State Data Center affiliate, NACOG is also a source for census data. Hard copies of 1970, 1980, and 1990 census data are available for use, and the 1990 data is also available on CD-ROM. Maps delineating census geography (tracts, block groups) are also available. The Census Bureau also has data available online at www.census.gov.
For more information, please contact:
NACOG Population & Demographics
119 East Aspen Avenue
Flagstaff, AZ 86001