Centralia is a very small city located in the state of Missouri. With a population of 4,807 people and two associated neighborhoods, Centralia is the 151st largest community in Missouri.

As is often the case in a small city, Centralia doesn't have a public transportation system that people use for their commute.

The overall education level of Centralia citizens is substantially higher than the typical US community, as 33.52% of adults in Centralia have at least a bachelor's degree, and the average American community has 21.84%.

The per capita income in Centralia in 2022 was $29,937, which is middle income relative to Missouri, and lower middle income relative to the rest of the US. This equates to an annual income of $119,748 for a family of four. However, Centralia contains both very wealthy and poor people as well.

Centralia is a somewhat ethnically-diverse city. The people who call Centralia home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Centralia residents report their race to be White, followed by Black or African-American. Important ancestries of people in Centralia include German, English, Irish, European, and French.

The most common language spoken in Centralia is English. Other important languages spoken here include Italian and Polish.