Nationwide, the West and South continued to drive population growth nationally, accounting for more than four in five new residents, while growth in the Northeast and Midwest continued to lag behind.
California (38,332,521) and Texas (26,448,193) remain the nation's most populous states, with New York (19,651,127) narrowly maintaining its third position over Florida (19,552,860) as of July 1. The Sunshine State will soon surpass New York, if it hasn't already, because its population grew three times faster, according to the Census estimates, which are based on data measuring births, deaths and migration.
California's population growth again outpaced the national trend, with an increase of 332,643 year to year, or 0.9 percent. Texas actually saw a greater raw population increase, however, expanding by 387,397.
North Dakota's population stood at 723,393 on July 1, according to the census data, a 3.1 percent increase from 2012. Since the 2010 census, North Dakota's population has grown 7.6 percent, far outpacing the national growth rate of 2.4 percent during that period.
Population in the District of Columbia also grew at a sustained clip, rising 2.1 percent year to year to 646,449. Utah grew next fastest, at a rate of 1.6 percent, followed by Colorado (1.5 percent), Texas (1.5 percent) and Nevada (1.3 percent).
Pennsylvania, New Mexico, Vermont and Illinois posted the slowest population growth, all at or near a tenth of a percentage point year to year.
The national population stood at 316,128,839 on July 1, an increase of 2.3 million, or 0.7 percent from the previous year. Population growth in the South accounted for half of all population growth nationally, though the West grew at a slightly faster pace in the last year.