County crime profile · 2024 · very large county · property-led
McHenry County, IL
At 310,229 residents, McHenry County is a very large county in Illinois. FBI UCR county totals below are read before any per-100,000 rate (Census denominator when matched).
McHenry County, IL reported 11 violent crimes per 100,000 in FBI UCR 2024
According to the FBI Uniform Crime Reporting (UCR) Program for 2024, McHenry County, IL agencies reported 33 violent and 181 property offenses. That equals about 11 violent and 58 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
33 violent offenses
11/100K violent rate
What the 2024 FBI UCR record shows for McHenry County, IL
Position in the state cohort
McHenry County reported a lower violent-crime rate than most comparable Illinois counties
At 10.6 reported violent offenses per 100,000 residents in 2024, McHenry County ranks 68 of 77 — above 9 of the 76 other Illinois counties whose 2024 submission passes this site’s completeness test and carries a matched Census denominator. That is -71.7% against the cohort median of 37.6. Counties that did not report, or that reported implausibly low totals, are excluded from this cohort rather than counted as low-crime.
Offense mix
The reported mix leans further toward property offenses than the state cohort
Violent offenses are 15.4% of the 214 Part I offenses reported in McHenry County for 2024, against a median of 20.3% across comparable Illinois counties — a gap of 4.8 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.
Property-offense composition
Larceny-theft dominates the property total more than it does across the cohort
Larceny-theft is 59.7% of reported property offenses in McHenry County, against a cohort median of 51.7%. The remainder is burglary (48) and motor vehicle theft (25). Composition differences of this size usually track what kinds of places and property are present in a jurisdiction.
On a very large county row, county figures aggregate every participating agency inside the county. Participation is voluntary. Per-100,000 rates use a separately matched 2020 U.S. Census county population, never a Table 10 field; unmatched counties stay count-only. A large county line encloses very different communities.
Crime Breakdown (2024) · property-led · very large county
Category
Count
Property Crime
181
Burglary
48
Larceny-Theft
108
Motor Vehicle Theft
25
Arson
2
Violent Crime
33
Murder
0
Rape
22
Robbery
1
Aggravated Assault
10
Reporting Agency
McHenry County Sheriff's Office NIBRS-participating
McHenry County's crime figures on this page originate from McHenry 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 McHenry County in population. Their populations run from 196,343 to 285,350, against 310,229 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.