Pinopolis is an unincorporated community and census-designated place in Berkeley County, South Carolina, United States. As of the 2010 census it had a population of 948. Founded circa 1845, the community was established at a relatively high elevation in the "low country" of South Carolina, and it gave an escape from mosquitoes and uncomfortable …Pinopolis is an unincorporated community and census-designated place in Berkeley County, South Carolina, United States. As of the 2010 census it had a population of 948. Founded circa 1845, the community was established at a relatively high elevation in the "low country" of South Carolina, and it gave an escape from mosquitoes and uncomfortable heat. It became a gathering place for those of means during this time. It shared this aspect with other communities throughout the plantation economy of this era.