This article provides information on the Population & Steets in Lains City, Iowa. By looking at the city's demographics, you'll get a clearer picture of the people living there. The population of the city was 34,798 in 2010 and was made up of a mixture of sexes. Thirteen percent of the population was under the age of eighteen, twenty-four percent of residents were between the ages of 18 and 24, thirty-three percent of residents were between the ages of 25 and 44, twenty-two percent were between the ages of 45 and 64, and nineteen-five-percent were over the age of 65.