Idaho officially earns the title of nation's fastest-growing state, Census Bureau says
"Rural counties and downstate IL have taken the brunt of population declines in the past, but the number of people in Chicago, which has propped up the state, has leveled off", Harger said.
Eight states lost population with IL seeing the largest number with a decline of 33,703.
California grew to more than 39.5 million people.
Overall, the United States now has 325.7 million inhabitants, according to the U.S. Census Bureau, which updates its population figures annually.
From July 2016 to July 2017, almost 115,000 Illinoisans left for other states on net, according to the Census data. Trailing Idaho in percentage population growth were Nevada (2 percent growth); Utah (1.9 percent); Washington (1.7 percent); Arizona (1.6 percent); and Texas, Washington, D.C., Colorado and OR (1.4 percent each). Florida comes in at number three, pushing NY down a peg to four when compared to counts from the 2010 Census. The South and West grew fastest at 1 percent each, while the Midwest had a 0.3 percent increase compared to the Northeast's growth of 0.2 percent. In percentage terms, IL saw the third-worst population decline in the nation. The decrease was a tiny fraction of Illinois' total population of just over 12.8 million.
The estimates for Puerto Rico are as of July 1, 2017, and therefore do not reflect the effects of Hurricanes Irma and Maria in September 2017.
Although the mining industry, including oil and gas extraction, in Wyoming added over 1,000 jobs from mid-2016 to mid-2017, almost all other sectors of the state's economy still saw job losses, led by construction and government.