Rochester, IL has a A safety grade (88/100) with a violent crime rate of 77 per 100,000, 78% below the national average.
FBI UCR 2024 · per-capita rates · small city
Rochester is a small municipal reporter (3,913 on the UCR row). Per-100,000 violent and property rates are shown with IL and U.S. context.
Data updated 2026-09-05
Rochester, IL is safer than most U.S. cities, and earns an A PlainCrime safety grade, where violent crime runs 78% below the U.S. average
According to the FBI Uniform Crime Reporting (UCR) Program for 2024, Rochester, IL shows violent crime at 76.7 per 100,000 residents and property crime at 536.7 per 100,000. Violent crime runs 78% 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.
Small-count caution
Rochester reported 3 violent offences in 2024 against a population of 3,913. 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.
2020–2024 direction
Across 5 comparable reporting years, the rate moved from 161.8 per 100,000 in 2020 to 76.7 in 2024 (-52.6%). The highest observed value was 182.9 in 2022 and the lowest 0.0 in 2023. Years whose submission failed the completeness test are left out of this comparison rather than plotted as change.
Comparable rate records
The nearest comparable 2024 records to Rochester's 76.7 violent-crime rate per 100,000 are Channahon (76.6), McLeansboro (77.0), Round Lake Heights (78.1), Vienna (74.5). 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 57.1% of reported property offenses in Rochester, against a cohort median of 70.3%. The remainder is burglary (6) and motor vehicle theft (3). Composition differences of this size usually track what kinds of places and property are present in a jurisdiction.
Position in the state cohort
At 76.7 reported violent offenses per 100,000 residents in 2024, Rochester ranks 297 of 506 — above 209 of the 505 other Illinois cities whose 2024 submission passes this site’s completeness test. That is -23.9% against the cohort median of 100.7. Cities that did not report, or that reported implausibly low totals, are excluded from this cohort rather than counted as low-crime.
Property counts dominate Rochester'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 3 reported violent incidents in a population of 3,913. 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-city offense counts above are voluntary UCR submissions, not neighbourhood advice. Year-to-year swings can look large when the population base is modest.
Across 2.7 Census sq mi, Rochester logged 7.8 property and 1.1 violent offenses per square mile in 2024.
Rochester leans on larceny-theft at 50% of reported offenses, with a moderate mix index of 3,438.
Violent offenses are only 13% of the municipal total - a property-led book.
Rochester offense mix (2024)
Density uses Census Gazetteer land area (2.7 sq mi); mix index is HHI x 10,000 on the offense-type shares above. Distinct from the per-100K rates in the hero.
| Offense | Count | Rate /100K |
|---|---|---|
| Property Crime | 21 | 536.7 |
| Larceny-Theft | 12 | 306.7 |
| Burglary | 6 | 153.3 |
| Motor Vehicle Theft | 3 | 76.7 |
| Arson | 0 | 0 |
| Violent Crime | 3 | 76.7 |
| Aggravated Assault | 3 | 76.7 |
| Murder | 0 | 0 |
| Rape | 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 | 3,709 | 161.8 | 808.8 |
| 2021 | Comparable | 3,714 | 80.8 | 888.5 |
| 2022 | Comparable | 3,827 | 182.9 | 392 |
| 2023 | Comparable | 3,855 | 0 | 389.1 |
| 2024 | Comparable | 3,913 | 76.7 | 536.7 |
Rochester Police Department filed the 2024 UCR row behind Rochester's 24 reported offenses (5-year span 2020-2024).
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 Rochester in population. Their populations run from 3,800 to 4,041, against 3,913 here. Or use our side-by-side compare tool to benchmark two cities directly.
In 2024, Rochester reported 3 violent crimes and 21 property crimes, for a total of 24 reported offenses.
From 2023 to 2024, Rochester's violent crime rate data is unavailable, and the property crime rate increased by 37.9%.
The most common crime type in Rochester is larceny-theft, accounting for 50.0% of all reported crimes (12 incidents in 2024).
Small-city read: Rochester is sourced from FBI UCR Table 8 for 2024; rates use that row's population.
Small-city rows use the same per-100,000 formula; a few unreported years can leave gaps in the trend table. Verify the agency's submission on FBI.gov UCR.
Disclaimer (small city): UCR counts here are informational only. They are not a victimization probability. Source: FBI UCR Program.
Small-city rate methodology for how Rochester's small city row is sourced and ranked.
Source: FBI Uniform Crime Reporting (UCR) Program CIUS Table 8 municipal crime rates · 2024 Rochester, IL rates use the reporting-year population on the municipal row.
Bulk download: city crime dataset (CSV/JSON)
Put this to use
Put the Rochester, IL FBI UCR record to work: compare peers, open the state atlas, or look up another city.
A citywide UCR rate is a starting point, not a neighbourhood verdict: read the full profile and the year coverage notes before drawing conclusions.
Every figure on PlainCrime is rendered directly from FBI Uniform Crime Reporting (UCR) source data, no number is typed in by an editor. Rochester is scored as a small-city UCR reporter (3,913 on the row). See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.