Flint Hill is a town in northwestern St. Charles County, Missouri, United States. As of the 2020 census, Flint Hill had a population of 981.
History
Flint Hill was officially founded in 1838 by Captain Taliferro P. Grantham. The community took its name from Flint Hill, Rappahannock County, Virginia, the native home of a share of the first settlers. A post office called Flint Hill has been in operation since 1836.
Geography
Flint Hill is approximately 2.5 miles north of Wentzville just east of U.S. Route 61 on Missouri Route P. McCoy Creek flows past to the north of the community.
According to the United States Census Bureau, the city has a total area of , all land.
Demographics
2010 census
As of the census of 2010, there were 525 people, 179 households, and 150 families living in the city. The population density was . There were 187 housing units at an average density of . The racial makeup of the city was 99.0% White, 0.4% African American, 0.2% from other races, and 0.4% from two or more races. Hispanic or Latino of any race were 1.0% of the population.
There were 179 households, of which 45.3% had children under the age of 18 living with them, 74.3% were married couples living together, 7.3% had a female householder with no husband present, 2.2% had a male householder with no wife present, and 16.2% were non-families. 14.0% of all households were made up of individuals, and 4.5% had someone living alone who was 65 years of age or older. The average household size was 2.93 and the average family size was 3.20.
The median age in the city was 38.8 years. 29.5% of residents were under the age of 18; 8.1% were between the ages of 18 and 24; 22.3% were from 25 to 44; 29.1% were from 45 to 64; and 11% were 65 years of age or older. The gender makeup of the city was 49.3% male and 50.7% female.
2000 census
As of the census
Flint Hill is home to St. Theodore Catholic School, a private school for grades K-8 and approximately 300-350 students as of the 2009–2010 school year.