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The Basin
Data journalism from the Los Angeles Basin
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Maps

Explore Los Angeles elections, crime, campaign donations and police activity. Every map is built from public records.

Interactive The most dangerous intersections in Los Angeles, sized by the number of collisions recorded at each corner The most dangerous intersections in Los Angeles, sized by the number of collisions recorded at each corner
Crime

LA's Worst Intersections

Every collision LAPD recorded from 2010 to 2020, placed on the corner it happened at. Drag the slider from the worst ten corners to the worst ten thousand.

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Interactive Map of Los Angeles parcels inside an SB 79 transit-oriented development band Map of Los Angeles parcels inside an SB 79 transit-oriented development band
Politics

The SB 79 Map

Every parcel in the city, by whether the state's new transit upzoning law reaches it. One dot is one parcel, 803,612 of them.

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Interactive Every parcel in Los Angeles County colored by the decade its building went up Every parcel in Los Angeles County colored by the decade its building went up
Politics

The Year Built Map

Every parcel in the county, colored by the year the building on it went up. One dot is one parcel, 2,198,708 of them.

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Interactive Precinct-level Los Angeles election map Precinct-level Los Angeles election map
Elections

The Election Map

A free precinct-level map covering 97 Los Angeles contests, 2020-2026.

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Interactive Los Angeles crime map by reporting district Los Angeles crime map by reporting district
Crime

The Crime Map

Compare recorded incidents by reporting district and year, 2010 to 2026, using consistent offense categories across LAPD's 2024-25 reporting change.

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Interactive Los Angeles map of what each police reporting district calls about Los Angeles map of what each police reporting district calls about
Crime

The Calls Map

The 3,025,845 LAPD calls for service since January 2024 that carry a reporting district. Most of them are not calls from the public at all.

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Interactive Los Angeles drawn entirely by a year of LAPD helicopter flight tracks Los Angeles drawn entirely by a year of LAPD helicopter flight tracks
Crime

The Helicopter Map

A year of observed LAPD helicopter positions, drawn as accumulated time in the air. No basemap underneath: the street grid is drawn only by the flight tracks.

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Interactive Every itemized contribution to a Los Angeles city campaign, one dot each Every itemized contribution to a Los Angeles city campaign, one dot each
Money

The Donor Map

Every itemized contribution to a Los Angeles city campaign since 2000, one dot each. Filter by race and cycle, and see how little of a district's money comes from inside it.

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