Explore the data.

Every reported incident of crime in Chicago since 2001, geocoded to the block, with arrest and domestic flags.

8,588,745 rows · updated daily

Every police-reported traffic crash in the city — conditions, cause, injuries, and hit-and-run flags.

1,072,550 rows · updated daily

Permits issued by the Department of Buildings since 2006 — new construction, renovation, demolition, electrical, and more, with reported costs.

840,526 rows · updated daily

Violations cited by the Department of Buildings during inspections — code, status, and inspector comments.

2,017,313 rows · updated daily

City-supported affordable rental developments — property type, management company, and unit counts.

598 rows · updated occasionally

Administrative-hearing violations for vacant and abandoned buildings, with fines and dispositions.

5,012 rows · updated monthly

Every recorded property sale in Cook County — PIN, price, deed type, buyer and seller names.

2,661,662 rows · updated monthly

Every business license issued by BACP — one row per license term, including liquor, retail food, and public-way endorsements.

1,200,530 rows · updated daily

Every 311 request since the December 2018 system launch — potholes, rodents, graffiti, abandoned vehicles, and 100+ other types.

14,217,117 rows · updated near real-time

Vehicles towed or relocated by the City in the last 90 days — the dataset behind 'was my car towed'.

4,808 rows · updated multiple times daily (rolling 90 days)

Name, title, department, and pay for every current City of Chicago employee (~32,000 people).

31,814 rows · updated periodically

Contracts and purchase orders awarded by the City — vendor, department, amount, and links to contract PDFs.

185,727 rows · updated daily

Lobbyists registered with the Board of Ethics, by year, with their employers.

11,956 rows · updated daily

System-wide CTA boardings by day — bus and rail — back to 2001.

9,251 rows · updated monthly (about a month behind)

Daily violation counts for every speed camera in the city.

486,786 rows · updated daily

Daily violation counts for every red-light camera intersection.

1,142,478 rows · updated daily

Live status of every Divvy bike-share station — docks in service and availability.

1,166 rows · updated live

Health inspections of restaurants and food establishments since 2010, with risk level, pass/fail result, and violation detail.

312,832 rows · updated weekly