Galesburg is a city in Neosho County, Kansas, United States. The population was 150 at the 2000 census. Galesburg is located at 37°28′21″N 95°21′21″W / 37.472415°N 95.355892°W / 37.472415; -95.355892 (37.472415, -95.355892). According to the United States Census Bureau, the city has a total area of 0.2 square miles (0.4 km2), all of it land.