Maplewood Park is a census-designated place (CDP) in Trumbull County, Ohio, United States. The population was 321 at the 2000 census. It is part of the Youngstown - Warren - Boardman, OH-PA Metropolitan Statistical Area.GeographyMaplewood Park is located at .According to the United States Census Bureau, the CDP has a total area of 0.8sqmi, all land.DemographicsAs of the census of 2000, there were 321 people, 123 households, and 91 families residing in the CDP. The population density was 427.9 people per square mile (165.3/km²). There were 132 housing units at an average density of 176.0/sq mi (68.0/km²). The racial makeup of the CDP was 40.50% White, 58.26% African American, 0.31% Native American, and 0.93% from two or more races.There were 123 households out of which 26.8% had children under the age of 18 living with them, 49.6% were married couples living together, 18.7% had a female householder with no husband present, and 26.0% were non-families. 23.6% of all households were made up of individuals and 10.6% had someone living alone who was 65 years of age or older. The average household size was 2.61 and the average family size was 3.09.