South Lyon, MI has a A+ safety grade (92/100) with a violent crime rate of 58 per 100,000, 83% below the national average.
South Lyon (12,010 people) sits in the mid-size municipal band. This page opens with per-100,000 FBI UCR rates, then MI and national benchmarks.
South Lyon, MI carries a PlainCrime A+ safety grade with violent crime 83% below the U.S. average
According to the FBI Uniform Crime Reporting (UCR) Program for 2024, South Lyon, MI shows violent crime at 58.3 per 100,000 residents and property crime at 291.4 per 100,000. Violent crime runs 83% below the U.S. average. PlainCrime assigns grade A+ from those rates. Figures are voluntary agency submissions joined to population denominators; incomplete coverage can move the number.
The verdict
South Lyon earns an A+ safety grade: violent crime runs 83% below the U.S. average, placing it safer than most U.S. cities.
Based on 7 reported violent incidents in a population of 12,010. At this volume, one additional or one fewer report can shift the rate and letter grade noticeably; small-city crime counts are inherently more volatile year to year than large-city counts, so treat this grade as a data point, not a precise ranking.
Small-count caution
South Lyon reported 7 violent offences in 2024 against a population of 12,010. At this volume one additional or one fewer report moves the per-100,000 rate noticeably, so the figure is better read as a data point than as a precise measurement, and year-to-year swings here are expected.
Comparable rate records
The nearest comparable 2024 records to South Lyon's 58.3 violent-crime rate per 100,000 are Allegan (58.3), Oxford (58.2), Sylvan Lake (58.9), Argentine Township (57.4). These are same-year agency submissions that pass the same completeness screen, not a claim that the cities have identical conditions. They make the cohort position above checkable against named records instead of a generic state average.
2020–2024 direction
Across 5 comparable reporting years, the rate moved from 109.5 per 100,000 in 2020 to 58.3 in 2024 (-46.8%). The highest observed value was 109.5 in 2020 and the lowest 58.3 in 2024. Years whose submission failed the completeness test are left out of this comparison rather than plotted as change.
Position in the state cohort
At 58.3 reported violent offenses per 100,000 residents in 2024, South Lyon ranks 293 of 366 — above 73 of the 365 other Michigan cities whose 2024 submission passes this site’s completeness test. That is -69.0% against the cohort median of 188.3. Cities that did not report, or that reported implausibly low totals, are excluded from this cohort rather than counted as low-crime.
Property-offense composition
Larceny-theft is 71.4% of reported property offenses in South Lyon, against a cohort median of 79.7%. The remainder is burglary (3) and motor vehicle theft (7). Composition differences of this size usually track what kinds of places and property are present in a jurisdiction.
Property counts dominate South Lyon's FBI UCR Table 8 municipal row. Per-100,000 rates use the reporting-year population on that row; cities that fail the completeness test stay out of rate rankings. A citywide figure rarely describes any single neighbourhood inside the municipal boundary.
Based on 7 reported violent incidents in a population of 12,010. At this volume, one additional or one fewer report can shift the rate and letter grade noticeably; small-city crime counts are inherently more volatile year to year than large-city counts, so treat this grade as a data point, not a precise ranking.
Mid-size municipal totals above are reported offenses, not safety advice for any single block. Reporting completeness still varies by year and agency.
| Offense | Count | Rate /100K |
|---|---|---|
| Property Crime | 35 | 291.4 |
| Larceny-Theft | 25 | 208.2 |
| Motor Vehicle Theft | 7 | 58.3 |
| Burglary | 3 | 25 |
| Arson | 0 | 0 |
| Violent Crime | 7 | 58.3 |
| Rape | 4 | 33.3 |
| Aggravated Assault | 3 | 25 |
| Murder | 0 | 0 |
| Robbery | 0 | 0 |
Lead series · fell across 5 comparable years · FBI UCR
Secondary series · fell · 2020-2024 · FBI UCR
| Year | Coverage | Population | Violent Rate | Property Rate |
|---|---|---|---|---|
| 2020 | Comparable | 11,877 | 109.5 | 362 |
| 2021 | Comparable | 11,899 | 58.8 | 319.4 |
| 2022 | Comparable | 11,866 | 75.8 | 455.1 |
| 2023 | Comparable | 11,872 | 101.1 | 278 |
| 2024 | Comparable | 12,010 | 58.3 | 291.4 |
South Lyon's crime figures on this page originate from South Lyon Police Department's submission to the FBI's Uniform Crime Reporting Program.
This agency reports via NIBRS, the incident-based system that captures more detail per offense (multiple crimes per incident, victim/offender data) than the older summary counts.
Crime rates read differently at different scales, so these are the Michigan cities closest to South Lyon in population. Their populations run from 11,743 to 12,321, against 12,010 here. Or use our side-by-side compare tool to benchmark two cities directly.
These Michigan cities report the closest violent-crime rates to South Lyon's 58.3/100K (same FBI UCR vintage rules; size peers above are excluded so the two lists stay distinct).
Mid-size read: South Lyon figures are FBI UCR CIUS Table 8 (vintage 2024), population-adjusted per 100,000.
Denominators are the reporting-year population on the municipal row. Incomplete years are dropped from rankings. Confirm at FBI Crime Data Explorer and Census.gov QuickFacts.
Disclaimer (mid-size municipal): figures are informational, not advice. FBI Uniform Crime Reporting (UCR) Program is the source. Consult a professional before decisions.
Mid-size rate methodology for how South Lyon's mid-size city row is sourced and ranked.
Source: FBI Uniform Crime Reporting (UCR) Program CIUS Table 8 municipal crime rates · 2024 South Lyon, MI rates use the reporting-year population on the municipal row.
Bulk download: city crime dataset (CSV/JSON)
Every figure on PlainCrime is rendered directly from FBI Uniform Crime Reporting (UCR) source data, no number is typed in by an editor. South Lyon is scored in the mid-size municipal band (12,010 on the row). See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.