| Statistic | Reportedincidents | /100k people | Oak Brook/100k people | Illinois/100k people | National/100k people |
| Total crime | 512 | n/a (estimate) | 6,388 | 2,004 | 2,119 |
| Murder | 0 | n/a | 0.0 | 5.8 | 5.0 |
| Rape | 1 | n/a | 12.5 | 46.9 | 37.5 |
| Robbery | 2 | n/a | 25.0 | 90.2 | 60.6 |
| Assault | 2 | n/a | 25.0 | 146.3 | 256.1 |
| Violent crime | 5 | n/a (estimate) | 62 | 289 | 359 |
| Burglary | 25 | n/a | 311.9 | 290.5 | 229.2 |
| Theft | 475 | n/a | 5,926.4 | 1,134.4 | 1,272.1 |
| Vehicle theft | 7 | n/a | 87.3 | 290.4 | 258.8 |
| Property crime | 507 | n/a (estimate) | 6,326 | 1,715 | 1,760 |


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| Item | Oak Brook | Illinois | National |
| Law enforcement employees (officers & civilians) | 57 | 30,690 | 558,732 |
| Police officers & civilians /1000 residents | n/a | 2.6 | 3.3 |
| State | Total offenders | Illinois /100K | National /100K |
| Illinois | 32,213 | 263 | 266 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Stone Park, IL | 4,842 | 92 | 138 | 230 |
| Western Springs, IL | 13,247 | 8 | 273 | 280 |
| Indian Head Park, IL | 3,744 | 0 | 312 | 312 |
| Willow Springs, IL | 5,610 | 0 | 390 | 390 |
| Winfield, IL | 9,683 | 59 | 345 | 404 |
| Bartlett, IL | 40,894 | 28 | 391 | 419 |
| Clarendon Hills, IL | 8,834 | 0 | 434 | 434 |
| Oak Brook, IL | 8,085 | 62 | 6,326 | 6,388 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Ellsworth, ME | 8,085 | 204 | 2,349 | 2,553 |
| Garden City Park, NY | 8,087 | 133 | 604 | 737 |
| Bellevue, PA | 8,088 | 177 | 1,076 | 1,253 |
| Bel Aire, KS | 8,082 | 80 | 711 | 791 |
| Northfield, NJ | 8,088 | 0 | 1,080 | 1,080 |
| Oak Brook, IL | 8,085 | 62 | 6,326 | 6,388 |