San Francisco drug-incident geography

Annual progression, Jan. 1–Sep. 23 of each year. Move the slider or press Play to watch the geographic concentration change.

drug incident rows

mapped rows

downtown study area

downtown share

Grid-circle size = incident rows in that ~250m cell. Rectangle = fixed downtown study area used for the sidebar percentage.

Important: These are SFPD incident-report rows, not a direct census of drug use. The reporting system changed in 2018; compare trends across that break cautiously. Map cells are intentionally aggregated for readability and file size. 2026 is through Sep. 23, so all years are restricted to the same Jan. 1–Sep. 23 window.