USACrimeMap
Address-level safety check

Is Cook County safe? Crime data for Cook County, Illinois

Open public-safety data covering Cook County, Illinois. Pick an address below to see what's been reported nearby — by category, by severity, by hour of day.

Incidents (snapshot)
12,583
Severe
4,349
35% of snapshot
Peak hour
14:00
Top category
property

Pick an address inside Cook County

Radius:

Cook County (Cook County, Illinois) sits between the city and the state in the US public-safety reporting hierarchy. The numbers shown roll up every covered municipality inside the county and reflect what those agencies have reported.

The active snapshot for Cook County contains 12,583 reported incidents, 4,349 of which were classified by the source agency as severe (35% — typically violent, weapons or shooting reports). Reports peak around 14:00 local time. Reports filed overnight (22:00–05:59) make up 22% of the snapshot.

For a street-level reading, open one of the cities inside Cook County and use the address lookup there. Statewide and county-wide figures are most useful for tracking aggregate trends over time, not for evaluating any individual location.

Important context: calls-for-service include reports that were later determined to be unfounded, duplicates, or non-criminal in nature. Some agencies blur exact addresses to the block. Reporting practices, definitions and lag vary substantially between agencies, so cross-jurisdiction comparisons should be made with care. The numbers and indicator here describe what was reported to law enforcement — they are not a measure of crime that actually occurred, court outcomes, conviction rates, or the quality, value or desirability of any neighborhood, property, person or business. Nothing on this page is a substitute for visiting in person, speaking with neighbors or consulting a qualified professional for any decision of consequence.

Full crime map
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Filterable map, hour-of-day breakdown, top types, source attribution.
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Type any US address; we'll match it to the closest covered city.

Frequently asked questions

How are these Cook County numbers calculated?
We count police incidents within the radius you pick, weighted by severity. The 0–100 score uses a logarithmic curve over the density of severe incidents in the last 30 days. It's heuristic — calibrated so quiet suburbs land in the A range, busy urban districts land in the C range, and very high-crime areas drop into D/F.
Where does the Cook County data come from?
Open public-safety feeds published by the agencies that cover Cook County, Illinois. We never scrape, never use private brokers, and always link back to the source. See the sources page for the full list, refresh cadence and license per agency.
Is the safety check free?
Yes. There's no signup, no API key requirement and no Google involvement — address autofill is powered by Photon (OpenStreetMap). Nothing about the address you search is shared with a third party or stored on our side.
What does "severe" mean here?
We flag any incident whose offense type matches violent, weapons, shooting, stabbing, homicide or armed-robbery patterns as severe. Cook County currently has 4,349 severe incidents on file out of 12,583 total in the active snapshot.
Why might my address show "not covered"?
We don't have an open feed for every US city yet. If your address falls outside the bounding box of any source we currently track, we'll say so explicitly rather than fake a number. We're adding cities continuously.
Why does Cook County include cities I didn't expect?
Counties contain multiple municipalities. Cook County's number rolls up every city we cover inside it, plus unincorporated areas where the sheriff's office handles policing.