2.42 and the average family size was 2.77. In the city, the population was spread out, with 26.5% under the age of 18, 2.6% from 18 to 24, 36.1% from 25 to 44, 22.6% from 45 to 64, and 12.2% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 100.0 males. For every 100 females age 18 and over, there were 92.0 males. The median income for a household in the city was $38,750, and the median income for a family was $42,250. Males had a median income of $30,313 versus $20,125 for females. The per capita income for the city was $15,952. None of the families and 2.2% of the population were living below the poverty line, including no under eighteens and 12.0% of those over 64. Education Most of the community is served by the Okoboji Community School District. The district was established on July 1, 1988 by the merger of the Arnolds Park and Milford school districts. Okoboji High School in Milford is the local high school. A small part of Fostoria is within the Spencer Community School District. References External links City-Data Comprehensive statistical data and more about Fostoria Cities in Iowa Cities in Clay County, Iowa