Data

Download the data used in our analysis.

About the data

Standardized stop data are available to download (by state) from the table below. The table includes a subset of common fields for each state, and indicates whether data are available for at least 70% of records in that state. Some states have more fields. The reasons for this are documented in the README file. We encourage you to review the state-by-state details in the README file before getting started working with the data on your own.

The original, unprocessed data we collected contain even more information. We do not document the raw data, but we do provide any documentation we received. Please contact us to access the original records.

The Stanford Open Policing Project data are made available under the Open Data Commons Attribution License.

When using the data in research publications, please cite our working paper:
E. Pierson, C. Simoiu, J. Overgoor, S. Corbett-Davies, V. Ramachandran, C. Phillips, S. Goel. (2017) “A large-scale analysis of racial disparities in police stops across the United States”.


Data downloads

State Stops Time Range
Stop Date
Stop Time
Stop Location
Driver Race
Driver Gender
Driver Age
Stop Reason
Search Conducted
Search Type
Contraband Found
Stop Outcome
Arizona 2,251,992 2009–2015
California 31,778,515 2009–2016
Colorado 2,584,744 2010–2016
Connecticut 318,669 2013–2015
Florida 5,421,446 2010–2016
Illinois 4,715,031 2004–2015
Iowa 2,441,335 2006–2016
Maryland 1,113,929 2007–2014
Massachusetts 3,418,298 2005–2015
Michigan 709,699 2001–2016
Mississippi 215,304 2013–2016
Missouri 2,292,492 2010–2015
Montana 825,118 2009–2016
Nebraska 4,277,921 2002–2014
Nevada 737,294 2012–2016
New Hampshire 259,822 2014–2015
New Jersey 3,845,335 2009–2016
North Carolina 9,558,084 2000–2015
North Dakota 330,063 2010–2015
Ohio 6,165,997 2010–2015
Oregon 1,143,017 2010–2016
Rhode Island 509,681 2005–2015
South Carolina 8,440,934 2005–2016
South Dakota 281,249 2012–2015
Tennessee 3,829,082 1996–2016
Texas 23,397,249 2006–2015
Vermont 283,285 2010–2015
Virginia 5,006,725 2006–2016
Washington 8,624,032 2009–2016
Wisconsin 1,059,033 2010–2016
Wyoming 173,455 2011–2012