Dunmore is a borough in Lackawanna County, Pennsylvania, adjoining Scranton. Dunmore was settled in 1835 and incorporated in 1862. Extensive anthracite coal, brick, stone, and silk interests had led to a rapid increase in the population from 8,315 in 1890 to 23,086 in 1940. The population was 14,057 at the 2010 census. Dunmore has four schools.