As of the 2013 U.S. Census, the population of Illinois was 12,882,135. This is an increase of 0.4 percent from the April 2010 census information. The Illinois population grew at a slower rate than the overall population of the United States during the same time period.
In 2013, the population of Illinois was made up of 50.9 percent females and 49.1 percent males. A majority of the population was white, making up 77.7 percent of Illinois' total population. The percentage of whites is exactly the same as that of the United States as a whole. The second most represented group in Illinois is Hispanics, representing 16.5 percent of the population in 2013.