Illegals Not Included In The Report: Iowa, population of estimated at 2,966,334, now has 108,968 people identifying themselves as Hispanic or Latino, up from 82,473 in 2000, the census estimates. That's an increase of 32 percent. Demographers believe there are many more Hispanics in Iowa and across the nation who are not accounted for in census reports because they are in the country illegally.