12 U.S. City Crime Data Portals—and How to Read Them
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Inside this gallery: 12 historical photographs, each with the year, the place, and the story behind the picture.
- New York City: complaint data and CompStat context — the past. NYPD publishes complaint-level open data and regular CompStat summaries.
- Los Angeles: incident records and changing systems — the past. Los Angeles publishes crime data through its open-data program, but system migrations and classification changes can affect continuity.
- Chicago: reported crimes with detailed fields — the past. Chicago's open crime dataset supports date, type, location, and arrest analysis, with privacy protections and revision caveats.
- Houston: monthly police reports — the past. Houston Police Department publishes monthly crime data files and reports.
Tap any photo above to jump in, or view the full story below.
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