Texas added the most new residents of any state over the past year according to the July 1, 2017 estimates of the United States Census Bureau. Texas grew by 400,000 residents (Figure 1). Florida added 328,000 residents more than one third more than California. Four states grew between 100,000 to 125,000, led by Washington, North Carolina, Georgia and Arizona. Colorado and Tennessee round out the top 10. The ten states adding the most new residents include five from the South census region and five from the West census region.
Over this decade, the three largest states have dominated numeric population growth. Texas has led the nation in each of the seven years, though has experienced declines in growth over the last two due likely to the instability in petroleum markets. Since 2010, Texas has added 3.1 million residents, more than live in 18 states and the District of Columbia. California has added 2.2 million new residents since 2010, edging out Florida. California's growth, however, has dropped significantly, to 240,000 between 2016 and 2017 the smallest number since the late 1990s. California's growth in this decade had peaked in 2014 at more than 350,000, but has since dropped by nearly one quarter. Florida added 2.1 million new residents and has led California in each of the last three years.
The other three largest states did much more poorly. New York has dropped from a gain of over 120,000 in 2011 to only 13,000 in 2017. Illinois has done even more poorly, dropping from the 21,000 gain in 2011 to a loss of 33,000 in 2017. Illinois has experienced a reduction in its growth each year of this decade.