| Statistic | Reportedincidents | /100k people | O'Fallon/100k people | Missouri/100k people | National/100k people |
| Total crime | 511 | n/a (estimate) | 538 | 2,403 | 2,119 |
| Murder | 0 | n/a | 0.0 | 7.8 | 5.0 |
| Rape | 17 | n/a | 17.9 | 45.2 | 37.5 |
| Robbery | 1 | n/a | 1.1 | 51.5 | 60.6 |
| Assault | 38 | n/a | 40.0 | 357.5 | 256.1 |
| Violent crime | 56 | n/a (estimate) | 59 | 462 | 359 |
| Burglary | 29 | n/a | 30.6 | 236.3 | 229.2 |
| Theft | 392 | n/a | 413.0 | 1,306.5 | 1,272.1 |
| Vehicle theft | 34 | n/a | 35.8 | 398.4 | 258.8 |
| Property crime | 455 | n/a (estimate) | 479 | 1,941 | 1,760 |

The O'Fallon crime rates are 74.6% lower than the national average. There are two main categories of crime - violent crime and property crime. Violent crime consists of murder, rape, robbery and assault, while property crimes include burglary, theft and vehicle theft. There were a total of 56 violent crimes in O'Fallon (59 per 100,000 people), which is 83.6% lower than the national average and there were a total of 455 property crimes (479 per 100,000 residents) which is 72.8% lower than average.
O'Fallon has a crime rate of 538, which is considerably less than the national average of 2119. This results in O'Fallon being one of the safest places to live across the United States. The crime rate is based on the total number of violent and property crimes per 100,000 people.
O'Fallon stands out with one of the lowest violent crime rates in the United States. Reporting only 59 violent crimes per 100,000 people, O'Fallon secures its place among the safest cities in the nation, making it an enticing destination for those in search of a new home.
In a remarkable testament to the city's commitment to safety, O'Fallon reported a murder rate of 0. This could indicate that it is a very safe place to live, but also serves as an inspiration to other urban areas striving for safer communities. Examining the full crime report will provide a complete overview of all crimes - violent and property.
Since 1990, property crime rates per 100,000 people in the United States have steadily decreased. Recently, the average did increase slightly. Having said that, O'Fallon has a property crime rate that is well below the national average with only 479 reported property crimes compared to the national average of 1760. Based on this report, O'Fallon remains a very safe place to live with regards to property crime.
AreaVibes has conducted polls asking local residents if they feel safe living in O'Fallon. Based on the results of the surveys (41 responses), 78% of people felt that there was very little crime in O'Fallon and felt safe walking alone at night. While 22% of people felt that it was not a safe place to live and did not feel safe walking alone at night.
To determine if O'Fallon is a safe place to live, let's take a look at the overall crime rate of the area, as well as the number of daily crimes. O'Fallon has a total crime rate that is 75% lower than the national average per 100,000 residents. This results in a total of 1.4 daily crimes (0.15 violent daily crimes and 1.25 daily property crimes) in O'Fallon.
Year-over-year crime data allows residents and potential residents to assess the crime in O'Fallon. A decrease in crime rates may indicate improving safety, while an increase could raise concerns. The year-over-year crime rate in O'Fallon has decreased by 38.1%. Violent crimes have decreased by 41.7%, while property crimes have decreased by 37.7%. By comparing crime rates from one year to the next, authorities and communities can identify trends and patterns in criminal activity. This helps in understanding whether crime is increasing, decreasing, or remaining stable over time.
O'Fallon reports an unemployment rate of 2.3%, contrasting with the national average of 4.9%. Constrained employment opportunities or a prevalence of low-paying positions can contribute to elevated rates of unemployment and underemployment. Areas where individuals contend with joblessness or insufficient wages may display heightened susceptibility to an increase in criminal activities attributed to economic insecurity. Conversely, regions characterized by robust employment rates often witness a decrease in overall O'Fallon crime rates.
Regions characterized by high population density frequently encompass expansive urban hubs that offer diverse economic prospects. In such areas, income inequality can be exacerbated, creating pockets of poverty alongside affluence. Economic disparities within these regions may correlate with elevated property crimes and, in certain instances, violent crimes. Conversely, areas with low population density numbers generally exhibit reduced O'Fallon crime rates. O'Fallon registers a population density of 3037.3 people per square mile, in contrast to the national average of 90.6 people per square mile.
In areas where housing affordability is an issue, crime can become a significant concern. Some individuals and families may be forced to live in overcrowded or substandard housing conditions, which can increase stress and potentially contribute to domestic disputes and related crimes. The median home price in O'Fallon is $421,191, compared to a national average of $326,622.
| Item | O'Fallon | Missouri | National |
| Law enforcement employees (officers & civilians) | 135 | 12,115 | 558,732 |
| Police officers & civilians /1000 residents | 1.7 | 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 | 5,566 | 16 | 49 | 65 |
| Clarkson Valley, MO | 2,697 | 72 | 304 | 377 |
| St. Paul, MO | 2,548 | 72 | 304 | 377 |
| Ballwin, MO | 31,123 | 56 | 484 | 540 |
| Moscow Mills, MO | 3,359 | 165 | 378 | 543 |
| Lake St. Louis, MO | 16,749 | 57 | 605 | 662 |
| Weldon Spring, MO | 5,688 | 150 | 631 | 781 |
| O'Fallon, MO | 90,020 | 59 | 479 | 538 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Newport Beach, CA | 90,043 | 252 | 1,873 | 2,124 |
| Waukegan, IL | 90,063 | 445 | 1,614 | 2,060 |
| Citrus Heights, CA | 90,373 | 439 | 2,127 | 2,566 |
| Ogden, UT | 90,520 | 505 | 1,925 | 2,431 |
| Newton, MA | 90,578 | 49 | 599 | 648 |
| O'Fallon, MO | 90,020 | 59 | 479 | 538 |