Mount Carroll, IL has a B safety grade (62/100) with a violent crime rate of 350 per 100,000, 1% below the national average.
Mount Carroll's UCR row covers a small municipal population (1,430). Rates below are per 100,000 and sit next to IL and U.S. averages.
Mount Carroll, IL carries a PlainCrime B safety grade with violent crime 1% below the U.S. average
According to the FBI Uniform Crime Reporting (UCR) Program for 2024, Mount Carroll, IL shows violent crime at 349.7 per 100,000 residents and property crime at 349.7 per 100,000. Violent crime runs 1% below the U.S. average. PlainCrime assigns grade B from those rates. Figures are voluntary agency submissions joined to population denominators; incomplete coverage can move the number.
The verdict
Mount Carroll earns a B safety grade: violent crime runs 1% below the U.S. average, placing it higher-crime than most U.S. cities.
Based on 5 reported violent incidents in a population of 1,430. 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.
Offense mix
Violent offenses are 50.0% of the 10 Part I offenses reported in Mount Carroll for 2024, against a median of 11.2% across comparable Illinois cities — a gap of 38.8 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.
Small-count caution
Mount Carroll reported 5 violent offences in 2024 against a population of 1,430. 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.
Position in the state cohort
At 349.7 reported violent offenses per 100,000 residents in 2024, Mount Carroll ranks 69 of 506 — above 437 of the 505 other Illinois cities whose 2024 submission passes this site’s completeness test. That is +250.8% against the cohort median of 99.7. Cities that did not report, or that reported implausibly low totals, are excluded from this cohort rather than counted as low-crime.
Comparable rate records
The nearest comparable 2024 records to Mount Carroll's 349.7 violent-crime rate per 100,000 are Joliet (350.0), Arcola (347.6), Cicero (347.3), Loves Park (356.0). 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.
Property-offense composition
Larceny-theft is 80.0% of reported property offenses in Mount Carroll, against a cohort median of 70.2%. The remainder is burglary (1) and motor vehicle theft (0). Composition differences of this size usually track what kinds of places and property are present in a jurisdiction.
Mount Carroll's FBI UCR Table 8 municipal row keeps violent and property totals in a closer balance. Per-100,000 rates use the reporting-year population on that row; incomplete reporters stay out of rate rankings. A citywide figure rarely describes any single neighbourhood inside the municipal boundary.
Based on 5 reported violent incidents in a population of 1,430. 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.
On a small municipal row, small denominators make rates sensitive to a handful of incidents. Figures are reported totals, not neighbourhood advice.
| Offense | Count | Rate /100K |
|---|---|---|
| Property Crime | 5 | 349.7 |
| Larceny-Theft | 4 | 279.7 |
| Burglary | 1 | 69.9 |
| Motor Vehicle Theft | 0 | 0 |
| Arson | 0 | 0 |
| Violent Crime | 5 | 349.7 |
| Aggravated Assault | 3 | 209.8 |
| Rape | 2 | 139.9 |
| Murder | 0 | 0 |
| Robbery | 0 | 0 |
Secondary series · fell · 2020-2024 · FBI UCR
Lead series · fell across 5 comparable years · FBI UCR
| Year | Coverage | Population | Violent Rate | Property Rate |
|---|---|---|---|---|
| 2020 | Comparable | 1,556 | 0 | 0 |
| 2021 | Comparable | 1,547 | 0 | 0 |
| 2022 | Comparable | 1,512 | 132.3 | 330.7 |
| 2023 | Comparable | 1,431 | 279.5 | 768.7 |
| 2024 | Comparable | 1,430 | 349.7 | 349.7 |
Mount Carroll's crime figures on this page originate from Mount Carroll 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 Illinois cities closest to Mount Carroll in population. Their populations run from 1,402 to 1,458, against 1,430 here. Or use our side-by-side compare tool to benchmark two cities directly.
These Illinois cities report the closest violent-crime rates to Mount Carroll's 349.7/100K (same FBI UCR vintage rules; size peers above are excluded so the two lists stay distinct).
Micro-municipal read: Mount Carroll's FBI UCR Table 8 row (2024) is the only source for the rates above.
With a small population base, per-100,000 rates amplify sparse counts. Incomplete submissions are excluded from rankings. See FBI.gov UCR for the raw Table 8 file.
Disclaimer (small municipal): small-base rates are especially easy to misread. Informational only - not advice. Source: FBI UCR Program.
Micro-municipal rate methodology for how Mount Carroll's small municipal row is sourced and ranked.
Source: FBI Uniform Crime Reporting (UCR) Program CIUS Table 8 municipal crime rates · 2024 Mount Carroll, IL 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. Mount Carroll is scored as a small municipal UCR reporter (1,430 on the row). See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.