Napton, originally known as Jonesboro, is an unincorporated community in southeastern Saline County, Missouri, United States.

Napton is located on Missouri Supplemental Route E, 8 miles (13 km) southeast of Marshall.

[2] The present name honors William Barclay Napton, Judge of the Supreme Court of Missouri.

In 1839, the county seat was removed from Jonesboro to Arrow Rock ..." (From A Directory of Towns, Villages, and Hamlets Past and Present of Saline County, Missouri, Compiled by Arthur Paul Moser [3] Jonesboro had a post office beginning in 1828 and postal service was available there intermittently through 1873.

[4] The George A. Murrell House and Neff Tavern Smokehouse are listed on the National Register of Historic Places.