65 years of age or older. The average household size was 2.53 and the average family size was 2.95. In the city, the population was spread out, with 27.8% under the age of 18, 6.3% from 18 to 24, 25.0% from 25 to 44, 27.8% from 45 to 64, and 13.2% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 98.6 males. For every 100 females age 18 and over, there were 94.4 males. The median income for a household in the city was $36,250, and the median income for a family was $40,568. Males had a median income of $26,875 versus $15,000 for females. The per capita income for the city was $14,446. About 3.4% of families and 6.0% of the population were below the poverty line, including 2.5% of those under the age of eighteen and 5.7% of those 65 or over. Education The Denison Community School District operates public schools in the area. References Cities in Iowa Cities in Crawford County, Iowa