How do we know if we are succeeding in building a comprehensive map? Several tools track OpenStreetMap’s growth in raw terms, but they lack important context for evaluating the project’s coverage. Based on comparable published statistics, OSM Counts is designed to help regional and local communities gauge their relative strengths and weaknesses, measure progress toward a comprehensive map, and take pride in their accomplishments. In this lightning talk, learn about the rationale and methodology behind OSM Counts and how you can use it to rally your local community around concrete goals.