Safety · Lake St. Louis
Lake St. Louis, MO crime & safety
Lake St. Louis's reported crime rate is well below Missouri's. Most reported incidents are property crimes, mainly thefts. 20 violent crimes were reported in 2025.
Crime reported to police, trends and how Lake St. Louis compares with the towns next door, from FBI data.
TownTapestry Safety GradeNew
A−
Lake St. Louis’s Safety Grade: A-
Lake St. Louis reports less crime per resident than 83% of the U.S. towns and cities we grade.
A-Violent crimeA-Property crime→Steady since 2023
All U.S. towns we grade (6,620)Safer than 83%
More reported crimeLess reported crime
Missouri towns we grade (194)Safer than 94%
Places of 5,000–25,000 people (2,890)Safer than 83%
Good confidence. Built on 316 incidents over 3 years. With counts this size, ordinary swings could put Lake St. Louis anywhere from A- to A.
How the Safety Grade works
- One score, from FBI data. Property crimes + 4 × violent crimes reported to police, per resident, pooled over the FBI’s latest 3 years (2023–2025). Violent crime counts four times as much because it matters more to how safe a place feels. It’s the same score behind our Safest towns in MO ranking.
- Graded on a national curve. Every U.S. town and city with 1,000+ residents that reported all 3 years (6,620 places) is lined up by score: A+ top 5%A next 10%A- next 10%B B+ to B−, next 30%C C+ to C−, next 30%D D and D−, bottom 15%
- Violent and property sub-grades use the same curve on each rate alone.
- Trend compares 2025 with 2023 and only says “improving” or “rising” when the change is bigger than normal year-to-year swings.
- Not graded: towns under 1,000 people, and towns missing any of the 3 years.
- What it can’t see: unreported crime, traffic safety, or which part of town incidents happen in. Towns with a campus, highway or big shopping center count incidents involving visitors. It’s our own summary of public data, not an official rating.
Reported crime, 2025
Lake St. Louis at a glance
Violent crime
1
per 1,000 residents · Missouri 4.3
Property crime
3.1
per 1,000 residents · Missouri 16.9
Incidents reported
82
20 violent · 62 property
Since 2022
▼ 67%
change in reported property crime
Violent crime per 1,000
Property crime per 1,000
Trend
Reported crime per 1,000 residents, 2022–2025
Lake St. LouisMissouri
Solid lines: property crime · dashed: violent crime.
Show as a table
| Year | Lake St. Louis property | Missouri property | Lake St. Louis violent | Missouri violent |
|---|---|---|---|---|
| 2022 | 9.3 | 24.2 | 1.1 | 5 |
| 2023 | 4.6 | 21.8 | 0.9 | 4.7 |
| 2024 | 6.1 | 20.1 | 0.6 | 4.7 |
| 2025 | 3.1 | 16.9 | 1 | 4.3 |
What gets reported
2025, by type
Larceny / theft
47
Burglary
6
Vehicle theft
9
Aggravated assault
18
Robbery
0
Rape
1
Homicide
1
Arson
1
Offenses reported to police, not convictions.
Who keeps Lake St. Louis safe
Local public safety
👮 Lake St. Louis Police DepartmentReports its crime counts to the FBI — the figures on this page.
🚨 EmergenciesCall 911. For non-emergency numbers, alerts and preparedness, see the town guide.
Nearby
Lake St. Louis and its neighbors
Reported crime per 1,000 residents in each town's latest year. * = a count, for towns under 1,000 people. Grade: the Safety Grade; — = not graded.
| Town | Grade | Violent | Property | Year |
|---|---|---|---|---|
| Lake St. Louis | A- | 1 | 3.1 | 2025 |
| O'Fallon | A- | 1 | 5.2 | 2025 |
| Wentzville | B | 1.4 | 7.4 | 2025 |
No town figures in the FBI's data: Dardenne Prairie.
How to read these numbers
What this data can and can't tell you
- It's reported crime. Only incidents reported to and recorded by police appear here. Many thefts and some assaults are never reported.
- Small numbers swing. In a town of about 19,800, a handful of incidents moves the rate noticeably from year to year. The trend matters more than any one year.
- Visitors count too. Towns with a campus, highway, beach or shopping center see incidents involving people who don't live there, which raises the per-resident rate.
- Gaps are real gaps. A missing year means the department didn't report a full year, not that nothing happened.
Source: FBI Uniform Crime Reporting Program, Crime Data Explorer: offenses known to law enforcement by city, 2025, and state and national rates. Counts are crimes reported to police, not convictions. This isn't an official statement of public safety — in an emergency, call 911.