The community is 2.5 miles east of the Harrison-Gentry county line at the intersection of Missouri routes F and D.[3]Panther Creek flows past the northwest side of the community and Sampson Creek's headwaters are approximately 1.5 miles to the southwest.[4]
History
Martinsville was laid out in 1856, and named after Zadoc Martin, the proprietor of a watermill.[5][6] A post office called Martinsville has been in operation since 1868.[7]