The National Neighborhood Indicators Partnership (NNIP) is a collaborative effort of the Urban Institute and local organizations in more than 30 cities that operate recurrently updated information systems with neighborhood level data and work to ensure the data will be applied effectively in policy development and community building. This collection of brief case studies describes the local partners successes in using neighborhood indicators to improve their communities in several areas, including neighborhood development, housing, children and schools, crime and prisoner reentry, health and service delivery.