Martinsburg is a medium-sized city located in the state of West Virginia. With a population of 18,935 people and 13 associated neighborhoods, Martinsburg is the seventh largest community in West Virginia. Much of the housing stock in Martinsburg was built prior to World War II, making it one of the older and more historic cities in the country.

Martinsburg real estate is some of the most expensive in West Virginia, although Martinsburg house values don't compare to the most expensive real estate in the U.S.

Telecommuters are a relatively large percentage of the workforce: 8.94% of people work from home. While this number may seem small overall, as a fraction of the total workforce it is high relative to the nation. These workers are often telecommuters who work in knowledge-based, white-collar professions. For example, Silicon Valley has large numbers of people who telecommute. Other at-home workers may be self-employed people who operate small businesses out of their homes.

The citizens of Martinsburg are slightly better educated than the national average of 21.84% for all cities and towns, with 23.05% of adults in Martinsburg having a bachelor's degree or advanced degree.

The per capita income in Martinsburg in 2022 was $29,406, which is upper middle income relative to West Virginia, and lower middle income relative to the rest of the US. This equates to an annual income of $117,624 for a family of four. However, Martinsburg contains both very wealthy and poor people as well.

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

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