Following the Civil War, Neosho became a prominent commercial center of southwest Missouri during the late 19th century. The population of the small community grew in size from approximately 500 to 2,725 between 1870 and 1900. During these decades dozens of brick commercial buildings were built around the central courthouse square containing a wide variety of private businesses including lumber yards, livery stables, general stores, and hotels. In addition to retail shops and stores the city also boasted numerous manufacturing companies such as wagon factories, mills, and even a cigar factory. A new brick courthouse was constructed in 1878 followed by a county jail in 1888.