| Statistic | Reportedincidents | /100k people | Markham/100k people | Illinois/100k people | National/100k people |
| Total crime | 0 | n/a (estimate) | 2,721 (estimate) | 2,004 | 2,119 |
| Murder | n/a | n/a | n/a | 5.8 | 5.0 |
| Rape | n/a | n/a | n/a | 46.9 | 37.5 |
| Robbery | n/a | n/a | n/a | 90.2 | 60.6 |
| Assault | n/a | n/a | n/a | 146.3 | 256.1 |
| Violent crime | n/a | n/a (estimate) | 392 (estimate) | 289 | 359 |
| Burglary | n/a | n/a | n/a | 290.5 | 229.2 |
| Theft | n/a | n/a | n/a | 1,134.4 | 1,272.1 |
| Vehicle theft | n/a | n/a | n/a | 290.4 | 258.8 |
| Property crime | n/a | n/a (estimate) | 2,328 (estimate) | 1,715 | 1,760 |


Why stop at city-to-city? With Local Insights, you can compare neighborhoods, zip codes, or even exact addresses. Access 300+ hyperlocal data points—from schools and crime to housing and amenities—to see which area is the better fit.
| Item | Markham | Illinois | National |
| Law enforcement employees (officers & civilians) | 49 | 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 |
| St. John, IN | 18,382 | 24 | 129 | 153 |
| Manhattan, IL | 8,218 | 37 | 192 | 229 |
| Western Springs, IL | 13,247 | 8 | 273 | 280 |
| Homer Glen, IL | 24,521 | 16 | 277 | 293 |
| Indian Head Park, IL | 3,744 | 0 | 312 | 312 |
| Dyer, IN | 15,933 | 12 | 344 | 356 |
| Willow Springs, IL | 5,610 | 0 | 390 | 390 |
| Markham, IL | 12,401 | 392 | 2,328 | 2,721 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Irmo, SC | 12,397 | 238 | 1,568 | 1,807 |
| Patchogue, NY | 12,389 | 224 | 1,013 | 1,236 |
| Blue Ash, OH | 12,417 | 179 | 1,797 | 1,976 |
| Derby, CT | 12,420 | 314 | 2,549 | 2,862 |
| North St. Paul, MN | 12,421 | 188 | 1,653 | 1,841 |
| Markham, IL | 12,401 | 392 | 2,328 | 2,721 |