Marksboro is named for Colonel Mark Thompson, who built and owned a grist mill on the Paulins Kill here before 1760. The first store was owned by William Shafer. An academy (school) was built here but was not successful, and was then used as a hotel as early as 1810. In 1814, the Marksboro Presbyterian Church was organized.[14]
By 1882, the population had grown to 175. Marksboro had a post office, grist and lumber mill, and a "good local trade".[16]
Geography
According to the United States Census Bureau, the CDP had a total area of 0.324 square miles (0.837 km2), including 0.320 square miles (0.828 km2) of land and 0.004 square miles (0.009 km2) of water (1.08%).[1][2]
Of the 30 households, 26.7% had children under the age of 18; 60.0% were married couples living together; 13.3% had a female householder with no husband present and 16.7% were non-families. Of all households, 10.0% were made up of individuals and 6.7% had someone living alone who was 65 years of age or older. The average household size was 2.73 and the average family size was 2.96.[15]
22.0% of the population were under the age of 18, 6.1% from 18 to 24, 17.1% from 25 to 44, 41.5% from 45 to 64, and 13.4% who were 65 years of age or older. The median age was 47.7 years. For every 100 females, the population had 110.3 males. For every 100 females ages 18 and older there were 93.9 males.[15]
^New Jersey: 2010 - Population and Housing Unit Counts - 2010 Census of Population and Housing (CPH-2-32), United States Census Bureau, p. III-5, August 2012. Accessed June 4, 2013. "Warren County—Name Changes: Beattystown CDP name corrected from Beatyestown; New CDPs: Allamuchy (formed from part of deleted Allamuchy-Panther Valley CDP), Anderson, Asbury, Blairstown, Brainards, Bridgeville, Broadway, Brookfield, Buttzville, Columbia, Delaware, Delaware Park, Finesville, Great Meadows (formed from part of deleted Great Meadows-Vienna CDP and additional area), Greenwich, Hainesburg, Harmony, Hope, Hutchinson, Johnsonburg, Lopatcong Overlook, Marksboro, Mountain Lake, Mount Hermon, New Village, Panther Valley (formed from part of deleted Allamuchy-Panther Valley CDP), Port Colden, Port Murray, Silver Lake, Stewartsville, Upper Pohatcong, Upper Stewartsville, and Vienna (formed from part of deleted Great Meadows-Vienna and additional area)"
^Lee, Francis Bazley. Genealogical and Memorial History of the State of New Jersey, p. 345. Lewis Historical Publishing Company, 1910. Accessed May 7, 2023. "Colonel Mark Thomson the first member the family of whom we have definite information settled first in Changewater and then in Marksboro, Sussex (now Warren county), New Jersey the latter of which places was named in his honor."