Marshall is a city in Saline County, Missouri, United States. The population was 12,433 at the 2000 census. It is the county seat of Saline County,. The Marshall Micropolitan Statistical Area consists of Saline County. It is also home to Missouri Valley College. Marshall was named after the statesman and jurist John Marshall (1755–1835).
Marshall is located at 39°6′58″N 93°11′52″W / 39.11611°N 93.19778°W / 39.11611; -93.19778 (39.116210, -93.197854). According to the United States Census Bureau, the city has a total area of 10.2 square miles (26.5 km²), of which, 10.1 square miles (26.3 km²) of it is land and 0.1 square miles (0.2 km²) of it (0.78%) is water.
As of the census of 2000, there were 12,433 people, 4,732 households, and 2,985 families residing in the city. The population density was 1,225.4 people per square mile (472.9/km²). There were 5,127 housing units at an average density of 505.3 per square mile (195.0/km²). The racial makeup of the city was 86.05% White, 7.40% African American, 0.43% Native American, 0.39% Asian, 0.34% Pacific Islander, 3.46% from other races, and 1.94% from two or more races. Hispanic or Latino of any race were 7.17% of the population.