Acording to the latest info from the Census Bureau, California remains the most populous sate with 36.5 Million as of 7/1/06. For the period July 1, 2005 – July 1, 2006, California gained 303,402 people. Texas was the largest gainer over this period with and increase of 579,275.
As far as fastest-growing states goes, Arizona is #1 with a 3.6% change with Nevada at 3.5%. The other states in the Top 10 are Idaho, Georgia, Texas, Utah, North Carolina, Colorado, Florida, and South Carolina.