There are 15 administrative divisions, referred to as counties, in the state of
Arizona. The population figures given below are from the
2000 census. You may list the counties by county name, by area in square miles, by year organized or by population by
clicking on the column headings or using the pull-down list box.
Source: United States Census Bureau, http://www.census.gov, August 7, 2006.
Source: The National Association of Counties, http://www.naco.org, August 7, 2006.
About Counties:
Overview of counties from the National Association of Counties.
History of County Government:
Three-part history of county government in the United States from the National Association of Counties.
County Name Origins of the United States
by Michael A. Beatty. This thorough and carefully prepared work is recommended for medium to large academic and public
libraries. McFarland & Company (May 2001) 665 pages.