Cook Agencies
Cook County
Cook County NIBRS Crime Data
From 2022 Q3 to 2025 Q2, Cook County, Illinois has experienced a declining crime rate, averaging 2,340.0 incidents per 100,000, higher than the state average of 1,295.2 and higher than the national average of 1,248.9. The 2025 rate of 2,124.3 was down 16% compared to 2024's 2,521.0. The state rate was 1,190.4 down 12% from 2024's 1,350.6, diverging from the national declining trajectory of 1,157.3 down 10% from 2024's 1,286.0.
View Raw Crime Data
| Cook County | Illinois | National | ||||
|---|---|---|---|---|---|---|
| Quarter | Incidents | Rate | Incidents | Rate | Incidents | Rate |
| 2022 Q3 | 66,734 | 2,516.2 | 144,436 | 1,522.5 | 3,665,730 | 1,342.2 |
| 2022 Q4 | 63,512 | 2,394.8 | 136,671 | 1,276.9 | 3,435,098 | 1,241.5 |
| 2023 Q1 | 56,834 | 2,162.4 | 137,608 | 1,216.8 | 3,596,224 | 1,269.5 |
| 2023 Q2 | 63,739 | 2,425.1 | 154,591 | 1,362.0 | 3,858,505 | 1,360.4 |
| 2023 Q3 | 68,792 | 2,617.4 | 162,669 | 1,434.4 | 3,934,609 | 1,383.9 |
| 2023 Q4 | 62,755 | 2,387.7 | 151,191 | 1,329.7 | 3,677,469 | 1,291.1 |
| 2024 Q1 | 63,457 | 2,404.9 | 146,941 | 1,237.4 | 3,540,241 | 1,198.6 |
| 2024 Q2 | 70,556 | 2,673.9 | 166,802 | 1,400.9 | 3,779,932 | 1,270.4 |
| 2024 Q3 | 73,213 | 2,774.6 | 171,645 | 1,434.1 | 3,829,636 | 1,294.4 |
| 2024 Q4 | 63,991 | 2,425.1 | 151,087 | 1,262.3 | 3,523,513 | 1,192.1 |
| 2025 Q1 | 53,019 | 2,009.3 | 126,759 | 1,073.8 | 3,131,791 | 1,074.8 |
| 2025 Q2 | 33,996 | 1,288.4 | 109,997 | 991.3 | 2,970,044 | 1,068.1 |
NIBRS is the FBI's National Incident-Based Reporting System, collecting detailed crime data from law enforcement agencies. Incidents is the number of crimes reported in a quarter. Crime rates are calculated per 100,000 people using Participated Population, the population covered by agencies reporting NIBRS data.
County level data aggregates NIBRS reports from tracked law enforcement agencies only (see list above). It may not cover all agencies in the county.