The Crowd Counting Consortium (CCC) turns publicly available information on protests, marches, demonstrations, rallies, strikes, and other political crowds in the United States into structured data.
The CCC emerged from a collaborative effort between Lab founder Erica Chenoweth and the University of Connecticut’s Jeremy Pressman to produce an accurate estimate of the number of people who participated in the Women's March on Washington and its affiliated Sister Marchers worldwide on January 21, 2017. Several of their colleagues expressed an interest in conducting similar efforts. Upon recognizing the growing public interest in up-to-date information on crowds—and in response to requests to continue the effort beyond the Women's March—they and their volunteer colleagues established the CCC. On April 22, 2017, the CCC began to collaborate with Count Love, another volunteer group that developed a web crawler that captures events data from local newspaper and television sites on a daily basis.
The CCC data can be found in its raw form on the project’s website. A compiled, cleaned, and augmented version of the data can be found in a GitHub repository maintained by the Nonviolent Action Lab.
The Lab has also built an interactive dashboard to make it easier to explore the data and visualize it in space and over time.