Maridi's 2026 population is now estimated at 136,759. In 1973, the population of Maridi was 9,628. Maridi has grown by 6,670 in the last year, which represents a 5.13% annual change. These population values and projections come from South Sudan cities and towns census 1973/1983 via CityPopulation attribution, South Sudan NBS city and town census 2008 via CityPopulation attribution and World Population Review Internal Projections .