U.S. population growth from July 2012 to July 2013 was 0.72% with 2.25 million people added. The population stands at 316.1 million in July 2013, and is now in Dec 2013 at 317.3 million, according to Census Bureau. U.S. populaion growth has ranged from 1.8% in the 1950's to 1.2% in the 1990's. Lower immigration since the 2008 recession, low fertility, lower movement to more prosperous states, has lowered the growth rate. The South and West show population growing at about 1% in 2013, the Northeast and Midwest at closer to 0.3%. California has 38 million people, Texas 26.5 million, New York 19.7 million, Florida 19.6 million.