The National Neighborhood Indicators Partnership (NNIP), coordinated by the Urban Institute, is a peer learning network of local organizations that share a mission to improve low-income neighborhoods by empowering local stakeholders to use data in planning, policymaking, and community building. Based on 20 years of NNIP experience, this guide describes the role of a local data intermediary, the process of identifying a home for the intermediary, and how to think about its initial fundraising and activities. The guide will help stakeholders think about the broader environment of community information and understand various aspects of establishing a local data intermediary.