The dataset consists of health zone boundaries with name, location, and other related attributes for fourteen provinces in the Democratic Republic of the Congo (COD). The current version supersedes the GRID3 COD - Health Zones v3.0. The following changes were made: - Updated data for the provinces of Haut-Katanga, Kasaï, Kasaï-Oriental, Tshopo and Mongala - Data for Sankuru Province have been added - A data sources table has been included as part of the metadata Province level data are also available. Dataset citation: Center for Integrated Earth System Information (CIESIN), Columbia University, Ministère de la Santé Publique, Hygiène et Prévention, Democratic Republic of the Congo, and GRID3. 2025. GRID3 COD - Health Zones v4.0. New York: Columbia University. URL . Accessed (date data was accessed)