This repository stores a compiled and cleaned version of the Crowd Counting Consortium's data on political crowds in the United States, including marches, protests, rallies, demonstrations, strikes, and similar actions. The data are stored in csv format (here), and the data dictionary briefly describes the columns in that file.

We strive to update this data set weekly, on Wednesdays not later than 4 PM Eastern time. Please note that, while the raw data are updated on a rolling basis, there is inevitably some lag between the appearance of a news story or social-media post about an event (or the submission of a form to CCC) and the addition of a complete record to CCC's Google Sheets. CCC strives to keep that interval as short as possible, but the project operates on a shoestring budget, so periods of higher protest activity usually make for longer delays.

The compiled data set serves as the input to the Crowd Counting Consortium (CCC) Data Dashboard, which interactively maps the events and plots summaries of them. Both the dashboard and the compiled data set are maintained by the Nonviolent Action Lab, a research program within the Carr Center for Human Rights Policy at the Harvard Kennedy School. The Crowd Counting Consortium is co-directed by faculty at Harvard University and the University of Connecticut.

The CCC collects these data in the public interest and to further scholarly research. The CCC is not formally affiliated with any other efforts to collect data on demonstrations, though it collaborates with Count Love. Anyone who wishes to conduct research using the data is fully responsible for any necessary contact with their own Institutional Review Boards. If you wish to use these data, please include a citation to the “Crowd Counting Consortium.”

We recognize that no large-scale data set on political crowds will ever capture all relevant events with 100% accuracy. Even so, we aspire to make this record as complete and error-free as possible. If you see a record that you believe needs correcting, or if you are aware of a relevant event that is not included, please do not open an issue here to report it. Instead, please submit a record or correction via the CCC website, here.

If you have suggestions on how to improve this repository or the compiled version of the data it hosts, please submit a ticket via the "Issues" button above (or just click here).