Vicksburg is a city in Warren County, Mississippi, United States. It is the only city in Warren County. It is located 234 miles (377 km) northwest of New Orleans on the Mississippi and Yazoo rivers, and 40 miles (65 km) due west of Jackson, the state capital. In 1900, 14,834 people lived in Vicksburg; in 1910, 20,814; in 1920, 17,931; and in 1940, 24,460. The population was 26,407 at the 2000 census. It is the county seat of Warren County. Vicksburg is the principal city of the Vicksburg Micropolitan Statistical Area, which includes all of Warren County.