| Statistic | Reportedincidents | /100k people | Weldon Spring/100k people | Missouri/100k people | National/100k people |
| Total crime | 0 | n/a (estimate) | 831 (estimate) | 2,554 | 2,281 |
| Murder | n/a | n/a | n/a | 9.1 | 5.7 |
| Rape | n/a | n/a | n/a | 46.4 | 38.0 |
| Robbery | n/a | n/a | n/a | 52.9 | 66.5 |
| Assault | n/a | n/a | n/a | 350.2 | 264.1 |
| Violent crime | n/a | n/a (estimate) | 149 (estimate) | 459 | 364 |
| Burglary | n/a | n/a | n/a | 251.2 | 250.7 |
| Theft | n/a | n/a | n/a | 1,365.4 | 1,347.2 |
| Vehicle theft | n/a | n/a | n/a | 478.6 | 318.7 |
| Property crime | n/a | n/a (estimate) | 681 (estimate) | 2,095 | 1,917 |


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| Item | Weldon Spring | Missouri | National |
| Law enforcement employees (officers & civilians) | n/a | 12,115 | 558,732 |
| Police officers & civilians /1000 residents | n/a | 3.7 | 3.3 |
| State | Total offenders | Missouri /100K | National /100K |
| Missouri | 19,657 | 344 | 266 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Cottleville, MO | 5,439 | 69 | 154 | 223 |
| Clarkson Valley, MO | 2,619 | 72 | 329 | 401 |
| St. Paul, MO | 2,463 | 72 | 329 | 401 |
| Lake St. Louis, MO | 16,357 | 89 | 464 | 553 |
| Fenton, MO | 4,033 | 119 | 544 | 663 |
| Ballwin, MO | 30,177 | 72 | 636 | 708 |
| Eureka, MO | 10,203 | 60 | 665 | 725 |
| Weldon Spring, MO | 5,536 | 149 | 681 | 831 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Franklin Center, NJ | 5,536 | 82 | 564 | 646 |
| Byron, MN | 5,536 | 144 | 936 | 1,080 |
| Bessemer City, NC | 5,536 | 249 | 818 | 1,067 |
| Pelham Manor, NY | 5,535 | 127 | 585 | 712 |
| Swartz Creek, MI | 5,535 | 373 | 1,263 | 1,636 |
| Weldon Spring, MO | 5,536 | 149 | 681 | 831 |