Carthage is a city in Jasper County, Missouri, United States. The population was 14,746 as of 1 July 2019 census data. It is the county seat of Jasper County and is nicknamed "America's Maple Leaf City."
Jasper County was formed in 1841. Carthage was chosen as the county seat, the area cleared and the town platted in 1842. The city was named after ancient Carthage. By the time of the American Civil War, there were over 500 residents, a brick and stone courthouse, and several businesses.
The area was divided over slavery, and almost all of the African-Americans in the county at the time were slaves. The Battle of Carthage, fought on July 5, 1861, was a clash between Union troops from St. Louis and Confederate troops led by the pro-Southern Missouri Governor Claiborne Fox Jackson. The "Second Battle of Carthage" occurred in October 1863 when Union troops confronted Confederate troops north of town and forced them to return to Arkansas.