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City Open Data

311 requests, reported crime, building permits and traffic crashes, counted each month from the open data portals that cities and counties run themselves

Browse by topic

Arizona

State page

California

State page

District of Columbia

State page

Louisiana

State page

Massachusetts

State page

Maryland

State page

New York

State page

Ohio

State page

Texas

State page

Virginia

State page

Washington

State page

Wisconsin

State page

Frequently asked questions

Where do these numbers come from?
Each city or county publishes its own records on an official open data portal. DatenUS asks each portal to count its records by month, type and area, and shows those counts. We do not copy individual records, names or caller details.
Can I compare crime between cities?
Not directly. Cities count reports differently: some count every offense in a report, some count incidents, and some include non-crime calls. Population and policing also differ. Use these pages to see trends within one city, and see the FBI crime statistics pages for rates.
Why is my city missing?
We add cities whose portals publish these records in a form that can be counted automatically. More cities will be added over time.

Source: City and county open data portals · Counts by month. The current month is left out until it ends.