| Statistic | Reportedincidents | /100k people | Williamsville/100k people | Illinois/100k people | National/100k people |
| Total crime | 17 | n/a (estimate) | 1,186 | 2,030 | 2,281 |
| Murder | 0 | n/a | 0.0 | 6.6 | 5.7 |
| Rape | 0 | n/a | 0.0 | 42.5 | 38.0 |
| Robbery | 1 | n/a | 69.7 | 110.2 | 66.5 |
| Assault | 1 | n/a | 69.7 | 150.8 | 264.1 |
| Violent crime | 2 | n/a (estimate) | 139 | 310 | 364 |
| Burglary | 8 | n/a | 557.9 | 231.8 | 250.7 |
| Theft | 7 | n/a | 488.1 | 1,143.5 | 1,347.2 |
| Vehicle theft | 0 | n/a | 0.0 | 344.7 | 318.7 |
| Property crime | 15 | n/a (estimate) | 1,046 | 1,720 | 1,917 |


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| Item | Williamsville | Illinois | National |
| Law enforcement employees (officers & civilians) | n/a | 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 |
| Mount Pulaski, IL | 1,683 | 0 | 66 | 66 |
| Leland Grove, IL | 1,237 | 44 | 241 | 285 |
| Sherman, IL | 4,470 | 43 | 261 | 304 |
| Rochester, IL | 3,778 | 0 | 389 | 389 |
| Jerome, IL | 1,973 | 133 | 738 | 871 |
| Athens, IL | 2,349 | 104 | 833 | 938 |
| Grandview, IL | 1,389 | 157 | 870 | 1,027 |
| Williamsville, IL | 1,468 | 139 | 1,046 | 1,186 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Niagara, WI | 1,468 | 64 | 191 | 254 |
| Stratford, OK | 1,468 | 142 | 1,490 | 1,632 |
| Leavittsburg, OH | 1,468 | 132 | 779 | 911 |
| Clarkson, KY | 1,468 | 0 | 0 | 0 |
| Bunker Hill, IL | 1,468 | 143 | 796 | 939 |
| Williamsville, IL | 1,468 | 139 | 1,046 | 1,186 |