Original: According to 2006 U. S. Census estimates, the average population of Alabama's 67 counties is 68,642, with Jefferson County as the most populous (656,700), and Greene County (9,374) the least.
Simplified: ISBN 081730410X According to 2006 U. S. Census estimates, the average population of Alabama's sixty-seven counties is 68,642, with Jefferson County has the most people (656,700), and Greene County (9,374) the least.