Mannington is a very small city located in the state of West Virginia. With a population of 1,927 people and two associated neighborhoods, Mannington is the 112th largest community in West Virginia. Much of the housing stock in Mannington was built prior to World War II, making it one of the older and more historic cities in the country.

Being a small city, Mannington does not have a public transit system used by locals to get to and from work.

The percentage of adults in Mannington who are college-educated is close to the national average for all communities of 21.84%: 20.89% of the adults in Mannington have a bachelor's degree or advanced degree.

The per capita income in Mannington in 2022 was $31,556, which is upper middle income relative to West Virginia, and middle income relative to the rest of the US. This equates to an annual income of $126,224 for a family of four. However, Mannington contains both very wealthy and poor people as well.

The people who call Mannington home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Mannington residents report their race to be White. Important ancestries of people in Mannington include German, Irish, English, Scottish, and Austrian.

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