Iowa Colony was founded in 1908 by the Immigration Land Company of Des Moines, Iowa, and received its name from Iowans G. I. Hoffmann and Robert Beard. The community received a post office in 1919, and rice farming was introduced there in 1920. Although not directly on a railroad line, Iowa Colony was served by the Gulf, Colorado and Santa Fe line through nearby Manvel. The population grew slowly to twenty-seven and remained at that level until the mid-1960s. The discovery of oil in 1948 brought regional employment to the area. By 1961 the Iowa Colony post office had closed, yet during the 1960s the settlement began to grow vigorously as part of the greater Houston area. By 1973 Iowa Colony had been incorporated, and by 1989 the town listed a population of 661. The city hall, community center, and municipal court are all housed in the same building, next to the fire department. In 1990 the population was 675. The population was 1,170 in 2010. Iowa Colony gained notoriety in the early 1990s as a major speed trap and was an inspiration for a Texas statute limiting municipal profits from speed traps.
As of the census of 2000, there were 804 people, 279 households, and 219 families residing in the city. The population density was 139.7 people per square mile. There were 302 housing units at an average density of 52.5/sq mi. The racial makeup of the city was 73.01% White, 6.72% African American, 0.12% Native American, 7.34% Asian, 11.19% from other races, and 1.62% from two or more races. Hispanic or Latino of any race were 25.12% of the population. There were 279 households, out of which 35.1% had children under the age of 18 living with them, 65.2% were married couples living together, 9.0% had a female householder with no husband present, and 21.5% were non-families. 19.0% of all households were made up of individuals, and 4.7% had someone living alone who was 65 years of age or older. The average household size was 2.88 and the average family size was 3.29. In the city, the population was spread out, with 28.0% under the age of 18, 7.5% from 18 to 24, 29.9% from 25 to 44, 24.5% from 45 to 64, and 10.2% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 103.0 males. For every 100 females age 18 and over, there were 99.7 males. The median income for a household in the city was $47,019, and the median income for a family was $50,000. Males had a median income of $40,313 versus $28,500 for females. The per capita income for the city was $18,935. About 6.6% of families and 6.1% of the population were below the poverty line, including 3.7% of those under age 18 and 15.2% of those age 65 or over.
Education
Students in residential-zoned portions of Iowa Colony attend schools in the Alvin Independent School District. Residents are zoned to:
Meridiana Elementary School in Iowa Colony, Mason Elementary School in Manvel, or Savannah Lakes Elementary School for 2016-2017
* In the 2017-2018 school year, the zoning will stay the same.
Meridiana Elementary School was built to serve the Meridiana master-planned community. Rise Communities, the developer of Meridiana, partnered with the school district to facilitate the school's development. Alvin High School served all Iowa Colony residents until fall 2006, when Manvel High opened to immediately accept 9th and 10th grades and phase in 11th and 12th grades in two years. Additionally, Alvin Community College provides basic undergraduate courses and adult education. Iowa Colony is in the ACC taxation zone.