📍Long Bay Beach, Portland, Jamaica New To The Community ? Follow Us For More Travel Inspired Post About Portland, Jamaica!!️ Portland, with its capital town Port Antonio, is a parish located on Jamaica’s northeast coast. It is situated to the north of St Thomas and to the east of St Mary in Surrey County. It is one of the rural areas of Jamaica, containing part of the Blue Mountains, where the Jamaican Maroon communities of Moore Town and Charles Town are located.