1) This chart shows population growth (or decline) of each U.S. county between 1 April 2000 and 1 July 2009, estimated by the U.S. Census Bureau.
2) The growth of the western states, Florida, and sections of the mountain states is clearly visible.
3) Several other growth areas can be seen in metro areas of a number of states, including Texas, Georgia, Tennessee, North Carolina, Washinton, DC, Illinois, and Minnesota.
4) Also visible is the population decline of large section of the plains states, from eastern Montana and North Dakota down to northern New Mexico and Texas.
5) Sections of Mississippi, Arkansas, and Lousiana in the Mississippi River Valley south of north and south of Memphis are other areas of population decline.
6) See also U.S. Resident Population Over Time