3.8 Million Residents...

Maricopa County tops national growth charts, from the Business Journal of Phoenix , also reports on the latest U.S. Census numbers. It states that Maricopa County now has 3.8 million residents, making it the fourth largest county in the nation. It also states that Maricopa County has added nearly 3 million residents since the 1970 census. WOW.

http://phoenix.bizjournals.com/phoenix/stories/2007/03/19/daily36.html?t=printable