There were 989 households out of which 44.3% had children under the age of 18 living with them, 66.7% were married couples living together, 10.8% had a female householder with no husband present, and 18.6% were non-families. 15.9% of all households were made up of individuals and 6.2% had someone living alone who was 65 years of age or older. The average household size was 3.19 and the average family size was 3.55.
In the city the population was spread out with 35.5% under the age of 18, 8.4% from 18 to 24, 24.0% from 25 to 44, 21.7% from 45 to 64, and 10.4% who were 65 years of age or older. The median age was 31 years. For every 100 females there were 101.2 males. For every 100 females age 18 and over, there were 100.1 males.
The median income for a household in the city was $35,215, and the median income for a family was $37,478. Males had a median income of $38,477 versus $24,009 for females. The per capita income for the city was $13,331. About 12.5% of families and 15.3% of the population were below the poverty line, including 18.2% of those under age 18 and 10.8% of those age 65 or over.
The city is served by Coronado Elementary School, St. Johns Middle School, and St. Johns High School.