Food banks are not-for-profit organizations that aim to alleviate the hunger problem in the society by working with donors on the upstream and member agencies on the downstream of their supply chains. These organizations operate in highly complex environments due to the uncertainties associated with supply and demand. In order to cope with the uncertainty and to be able to deliver food to the underserved communities, food banks need to utilize information and coordinate well with their partners so that the donations can be matched with demand in a timely manner.Therefore, effective and efficient supply chain management approaches become critical in this resource-constrained setting, where it is unknown which resources are available. Based on what we know from the previous research on for-profit firms, and given the complexity of food bank supply chains along with the necessity of food banks to work with partner firms, it is natural to contend that supply chain integration is a key determinant of performance. Exactly how the constituent parts of supply chain integration relate to each other in humanitarian organizations, however, is an open research question. Three common integration dimensions that have been investigated in the supply chain management literature include internal integration, demand integration and supply integration. Demand integration and supply integration are also referred to as external integration in some studies. Collaboration between functions and information sharing processes within an organization determines the internal integration. Some indicators of internal integration in the literature include intra-firm functional team activities between functions, such as operations, marketing and logistics, to achieve the goals of the supply chain. Moreover, demand integration relates to the collaboration activities and information sharing with key customers to meet their expectations and improve supply chain performance. Similarly, supply integration involves coordination activities as well as information sharing with key suppliers to achieve supply chain performance by enabling better planning, forecasting and process design. We study the three key dimensions of supply chain integration – supply integration, demand integration and internal integration and empirically examine how each is related to the others and how they impact food banks’ ability to create basic programs that help in delivering food to the underserved communities.