County crime profile · 2024 · mid-size county · property-led
Marion County, IL
Marion County (37,729 people) sits in the mid-size county band in Illinois. This page opens with reported offense counts, then rates where a Census join exists.
Marion County, IL reported 90 violent crimes per 100,000 in FBI UCR 2024
According to the FBI Uniform Crime Reporting (UCR) Program for 2024, Marion County, IL agencies reported 34 violent and 112 property offenses. That equals about 90 violent and 297 property crimes per 100,000 using a verified Census population join. Table 10 coverage is a voluntary subset of U.S. counties.
2024 UCR year
34 violent offenses
90/100K violent rate
What the 2024 FBI UCR record shows for Marion County, IL
Position in the state cohort
Marion County reported a higher violent-crime rate than most comparable Illinois counties
At 90.1 reported violent offenses per 100,000 residents in 2024, Marion County ranks 4 of 77 — above 73 of the 76 other Illinois counties whose 2024 submission passes this site’s completeness test and carries a matched Census denominator. That is +141.7% against the cohort median of 37.3. Counties that did not report, or that reported implausibly low totals, are excluded from this cohort rather than counted as low-crime.
Offense mix
Violent offenses make up an unusually large share of the reported mix
Violent offenses are 23.3% of the 146 Part I offenses reported in Marion County for 2024, against a median of 20.1% across comparable Illinois counties — a gap of 3.2 points. Offense mix is shaped by which agencies report and how incidents are classified as well as by the underlying offenses, so it describes the reported record rather than a settled difference in conditions.
2022–2024 direction
The reported violent-crime rate ended the window close to where it started
Across 3 comparable reporting years, the rate moved from 90.1 per 100,000 in 2022 to 90.1 in 2024 (+0.0%). The highest observed value was 90.1 in 2022 and the lowest 79.5 in 2023. Years whose submission failed the completeness test are left out of this comparison rather than plotted as change.
Mid-size county rows still aggregate voluntary UCR submissions. Per-100,000 rates need a matched 2020 Census population; unmatched stay count-only. County-wide totals rarely describe any single town inside the line.
Crime Breakdown (2024) · property-led · mid-size county
Category
Count
Property Crime
112
Burglary
31
Larceny-Theft
63
Motor Vehicle Theft
18
Arson
0
Violent Crime
34
Murder
0
Rape
6
Robbery
1
Aggravated Assault
27
Reporting Agency
Marion County Sheriff's Office NIBRS-participating
Marion County's crime figures on this page originate from Marion County Sheriff's Office'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.
Similar-Size Counties in Illinois
A per-capita rate is easiest to read against places of similar scale, so these are the Illinois counties closest to Marion County in population. Their populations run from 34,962 to 37,804, against 37,729 here. Or launch the
side-by-side compare tool
to benchmark two jurisdictions directly.
Source: FBI Uniform Crime Reporting (UCR) Program, Crime in the United States (CIUS) Table 10.
FBI Table 10 supplies county offense counts but no resident population. Where this page shows a per-100,000 rate, the denominator is a separately matched 2020 U.S. Census Bureau county population; unmatched county rows remain count-only. Statewide comparisons draw on the state UCR program. Verify with FBI.gov UCR and Census.gov QuickFacts.