Crime Grade · FBI UCR Data · 2025
Lake Forest, IL Crime Grade
How Lake Forest grades for violent crime against every other reporting U.S. city — and against the rest of Illinois — based on the FBI's Uniform Crime Reporting data.
National
1/10
vs. all U.S. cities ≥ 25,000 population
Illinois
1/10
vs. Illinois cities ≥ 10,000 population
In 2025, the violent crime rate in Lake Forest, IL was 20.3 per 100,000 residents (4 incidents over a population of 19,716). That puts Lake Forest 94% below the U.S. rate of 325.3 and 92% below the Illinois statewide rate of 245.7.
That ranks Lake Forest #143 of 3,771 ranked U.S. cities, safer than 96% of them, and #8 of 214 in Illinois. Violent crime is down 2% year over year and up 31% over the last five years.
Lake Forest, IL crime — key facts
- National Crime Grade
- A (1/10)
- Illinois Grade
- A (1/10)
- Violent crime rate
- 20.3 / 100k
- National rank
- #143 of 3,771
- IL rank
- #8 of 214
- Safer than
- 96% of U.S. cities
- Year over year
- down 2%
- 5-year change
- up 31%
- Population
- 19,716
- Reporting agency
- Lake Forest Police Department
- Data year
- 2025 · FBI UCR
Reported by Lake Forest Police Department (FBI ORI IL0491000) to the FBI Uniform Crime Reporting Program. Download the full dataset (CSV) · methodology.
Violent crime rate, 5-year trend
Per 100,000 residents. Lake Forest (red), Illinois (blue), U.S. average (gray dashed).
Lake Forest vs. U.S., 2025 — by offense
Rates per 100,000 residents for each offense category.
Full data, last 5 years
Rates per 100,000 residents. Raw counts in parentheses.
| Offense | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Violent crime | 15.5(3) | 15.6(3) | 52.1(10) | 20.7(4) | 20.3(4) |
| Murder | 0.0(0) | 0.0(0) | 0.0(0) | 0.0(0) | 0.0(0) |
| Rape | 10.3(2) | 5.2(1) | 10.4(2) | 5.2(1) | 5.1(1) |
| Robbery | 0.0(0) | 0.0(0) | 10.4(2) | 0.0(0) | 0.0(0) |
| Aggravated assault | 5.2(1) | 10.4(2) | 31.2(6) | 15.5(3) | 15.2(3) |
| Property crime | 485.1(94) | 677.0(130) | 692.5(133) | 630.3(122) | 497.1(98) |
| Burglary | 87.7(17) | 187.5(36) | 156.2(30) | 206.6(40) | 35.5(7) |
| Larceny | 371.6(72) | 437.5(84) | 505.1(97) | 366.8(71) | 410.8(81) |
| Motor vehicle theft | — | — | — | — | — |
How the Crime Grade is calculated
- What is the source of the Lake Forest, IL Crime Grade?
- FBI Uniform Crime Reporting via the Crime Data Explorer. Agency-level data, pulled directly. No third-party aggregators, no proprietary score.
- What metric does the Lake Forest Crime Grade use?
- Violent crime rate per 100,000 residents (murder + rape + robbery + aggravated assault), most recent fully-reported year.
- How is the national decile for Lake Forest calculated?
- Lake Forest's rate placed against all FBI-reporting U.S. cities with population ≥ 25,000. 1 = safest.
- How is the Illinois state decile calculated?
- Same calculation restricted to Illinois cities with population ≥ 10,000.
- How do decile scores convert to a letter grade?
- 1–3 = A · 4–5 = B · 6–7 = C · 8 = D · 9–10 = F.
- How often is the Lake Forest Crime Grade refreshed?
- Twice a year. The FBI typically releases the prior year's full data each September.
- What are the limits of this Crime Grade?
- The FBI relies on local agency reporting. Rates reflect what was reported, not what occurred.
Nearby cities in Illinois
Comparable Illinois cities by population.
Compare Lake Forest to other places
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