| Statistic | Reportedincidents | /100k people | Lake St. Louis/100k people | Missouri/100k people | National/100k people |
| Total crime | 128 | n/a (estimate) | 662 | 2,403 | 2,119 |
| Murder | 0 | n/a | 0.0 | 7.8 | 5.0 |
| Rape | 1 | n/a | 5.2 | 45.2 | 37.5 |
| Robbery | 1 | n/a | 5.2 | 51.5 | 60.6 |
| Assault | 9 | n/a | 46.6 | 357.5 | 256.1 |
| Violent crime | 11 | n/a (estimate) | 57 | 462 | 359 |
| Burglary | 8 | n/a | 41.4 | 236.3 | 229.2 |
| Theft | 103 | n/a | 532.7 | 1,306.5 | 1,272.1 |
| Vehicle theft | 6 | n/a | 31.0 | 398.4 | 258.8 |
| Property crime | 117 | n/a (estimate) | 605 | 1,941 | 1,760 |

Looking at the most recent crime report, the crime rate in Lake St. Louis is 68.8% lower than the national average. These crimes fall into two primary categories: violent and property. Violent crimes encompass murder, rape, robbery and assault, while property crimes involve theft, vehicle theft and burglary. In Lake St. Louis, there were 11 reported violent crimes, equivalent to 57 per 100,000 individuals, 84.2% lower than the national average. Additionally, there were 117 property crimes, amounting to 605 per 100,000 residents, 65.6% lower than the U.S. average.
Lake St. Louis enjoys a remarkably low crime rate, standing at just 662, a significant contrast to the national average of 2119. This distinction firmly establishes Lake St. Louis as one of the safest places to reside in the entire United States. This crime rate is meticulously calculated, taking into account the total occurrences of both violent and property crimes per 100,000 individuals, providing a comprehensive perspective on the area's safety and livability.
Lake St. Louis has one of the lowest violent crime rates of all cities in the United States. With a rate of 57 violent crimes per 100,000 people, Lake St. Louis ranks among the safest cities in the United States making it an attractive choice for those seeking a new place to call home.
In the latest reported crime year, Lake St. Louis recorded zero homicides. This statistic potentially positions the city as a paragon of security, radiating a profound sense of safety for its residents. A low number of severe violent crimes instills a deep feeling of well-being among its community but also establishes a lofty benchmark for other locales aspiring to foster equally secure environments.
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, Lake St. Louis has a property crime rate that is well below the national average with only 605 reported property crimes compared to the national average of 1760. Based on this report, Lake St. Louis remains a very safe place to live with regards to property crime.
AreaVibes conducted surveys inquiring about the safety perception of Lake St. Louis residents. Out of the respondents (9 in total), 78% expressed a strong sense of security, believing that crime rates in Lake St. Louis were low, and they felt comfortable walking alone at night. Conversely, 22% held a contrasting viewpoint, expressing concerns about safety in the area and feeling uncomfortable walking alone during the nighttime hours.
To determine if Lake St. Louis 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. Lake St. Louis has a total crime rate that is 69% lower than the national average per 100,000 residents. This results in a total of 0.35 daily crimes (0.03 violent daily crimes and 0.32 daily property crimes) in Lake St. Louis.
Year-over-year crime data allows us to analyze short-term trends in crime activity. By comparing crime rates from one year to the next, we can identify patterns and shifts in Lake St. Louis crime rates. This information can be invaluable for residents looking to make informed decisions on where to live. When comparing the most recent year to the previous year, total crime in Lake St. Louis has decreased by 46.2% year over year. Violent crime has decreased by 62.1% and property crime has decreased by 44%.
The economic well-being of a city's residents plays a significant role in crime rates. High poverty rates and income inequality can lead to increased crime stats as individuals may resort to illegal activities to meet their basic needs. While lower rates could lead to a lower Lake St. Louis crime rate. The poverty level in Lake St. Louis is 3.9%, while the national average is 15.1%.
Escalating cost of living expenses, encompassing exorbitant housing costs, grocery and healthcare expenditures, can induce financial strain on individuals and families, particularly those with limited financial resources. Such economic stress may propel individuals towards criminal activities, including theft or burglary, as a means of addressing their financial hardships. Conversely, cities characterized by a lower cost of living may alleviate economic pressures, potentially resulting in a reduced crime rate. In Lake St. Louis, the cost of living is 8.56% higher than the national average, reflecting a more affordable economic environment that could contribute to a decrease in crime levels.
In Lake St. Louis, the average rental rates are $1,740 per month, compared to the national average of $1,444. Rapid increases in rental costs can lead to neighborhood instability as residents are forced to move frequently in search of more affordable housing. This transience can weaken community bonds and hinder the establishment of social support networks, which can indirectly contribute to crime. While affordable rent and areas with higher income per capita, allow for long term renters and community bonds to the formed, therefore reducing crime rates on the long term.

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| Item | Lake St. Louis | Missouri | National |
| Law enforcement employees (officers & civilians) | 39 | 12,115 | 558,732 |
| Police officers & civilians /1000 residents | 2.6 | 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 |
| St. Paul, MO | 2,548 | 72 | 304 | 377 |
| Clarkson Valley, MO | 2,697 | 72 | 304 | 377 |
| O'Fallon, MO | 90,020 | 59 | 479 | 538 |
| Ballwin, MO | 31,123 | 56 | 484 | 540 |
| Moscow Mills, MO | 3,359 | 165 | 378 | 543 |
| Wright City, MO | 4,144 | 145 | 488 | 633 |
| Lake St. Louis, MO | 16,749 | 57 | 605 | 662 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Fort Hunt, VA | 16,749 | 89 | 641 | 730 |
| Hernando, MS | 16,752 | 92 | 474 | 565 |
| Uvalde, TX | 16,753 | 393 | 1,838 | 2,231 |
| Rio Linda, CA | 16,757 | 589 | 2,518 | 3,107 |
| Kaukauna, WI | 16,758 | 102 | 681 | 783 |
| Lake St. Louis, MO | 16,749 | 57 | 605 | 662 |