Vandalia, Missouri is a city with a population that is diverse in age and ethnicity. According to the latest census data, the population is composed of 23.7% under 18 years of age, 7.0% from 18 to 24, 24.1% from 25 to 44, 23.2% from 45 to 64 and 22.0% from 65 years old. The highest rate of bachelor's degrees is found among white people, with 8.24%. Asian and Pacific Island Languages are also represented in the city.
The race least likely to be in poverty in Vandalia is white, with 9.32% below the poverty level. Since its founding, Vandalia has experienced a number of demographic changes. The population has grown steadily over the years, with an increase of 8.3% since 2000. This growth has been driven by a number of factors, including an influx of new residents and businesses, as well as an increase in the number of people moving to the city from other parts of the state and country. The racial makeup of Vandalia has also changed over time. In 2000, the city was predominantly white (87%), but by 2018 this had decreased to 79%.
The African American population has increased from 8% in 2000 to 13% in 2018, while the Hispanic population has grown from 2% to 6%. The Asian population has also increased significantly over this period, from 1% to 4%. The median age of Vandalia's population has also increased over time, from 33.7 in 2000 to 37.2 in 2018. This is due to a combination of factors, including an aging population and an influx of younger people moving to the city.Overall, Vandalia has seen a number of demographic changes since its founding. The population has grown steadily over time, with an increase in racial diversity and a rise in the median age of residents.