Rock Island, IL has a F safety grade (22/100) with a violent crime rate of 544 per 100,000, 55% above the national average.
FBI UCR 2024 · per-capita rates · mid-size city
Rock Island (35,841 people) sits in the mid-size municipal band. This page opens with per-100,000 FBI UCR rates, then IL and national benchmarks.
Data updated 2026-08-24
Rock Island, IL carries a PlainCrime F safety grade with violent crime 55% above the U.S. average
According to the FBI Uniform Crime Reporting (UCR) Program for 2024, Rock Island, IL shows violent crime at 544.1 per 100,000 residents and property crime at 2,714.8 per 100,000. Violent crime runs 55% above the U.S. average. PlainCrime assigns grade F from those rates. Figures are voluntary agency submissions joined to population denominators; incomplete coverage can move the number.
Position in the state cohort
At 544.1 reported violent offenses per 100,000 residents in 2024, Rock Island ranks 26 of 506 — above 480 of the 505 other Illinois cities whose 2024 submission passes this site’s completeness test. That is +445.9% 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 Rock Island's 544.1 violent-crime rate per 100,000 are Urbana (544.4), Hazel Crest (540.2), Chicago (539.8), Rantoul (549.2). 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 42.5% of reported property offenses in Rock Island, against a cohort median of 70.3%. The remainder is burglary (330) and motor vehicle theft (229). Composition differences of this size usually track what kinds of places and property are present in a jurisdiction.
Offense mix
Violent offenses are 16.7% of the 1,168 Part I offenses reported in Rock Island for 2024, against a median of 11.2% across comparable Illinois cities — a gap of 5.5 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.
2020–2024 direction
Across 5 comparable reporting years, the rate moved from 576.0 per 100,000 in 2020 to 544.1 in 2024 (-5.5%). The highest observed value was 651.8 in 2021 and the lowest 544.1 in 2024. Years whose submission failed the completeness test are left out of this comparison rather than plotted as change.
Property counts dominate Rock Island'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.
Mid-size municipal totals above are reported offenses, not safety advice for any single block. Reporting completeness still varies by year and agency.
Across 17.5 Census sq mi, Rock Island logged 55.5 property and 11.1 violent offenses per square mile in 2024.
Rock Island leans on larceny-theft at 35% of reported offenses, with a moderate mix index of 2,688.
Violent offenses are 17% of the municipal total; property offenses still dominate the count.
Rock Island offense mix (2024)
Density uses Census Gazetteer land area (17.5 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 | 973 | 2714.8 |
| Larceny-Theft | 414 | 1155.1 |
| Burglary | 330 | 920.7 |
| Motor Vehicle Theft | 229 | 638.9 |
| Arson | 7 | 19.5 |
| Violent Crime | 195 | 544.1 |
| Aggravated Assault | 184 | 513.4 |
| Robbery | 5 | 14 |
| Rape | 4 | 11.2 |
| Murder | 2 | 5.6 |
Lead series · rose across 5 comparable years · FBI UCR
Secondary series · fell · 2020-2024 · FBI UCR
| Year | Coverage | Population | Violent Rate | Property Rate |
|---|---|---|---|---|
| 2020 | Comparable | 36,981 | 576 | 1965.9 |
| 2021 | Comparable | 36,666 | 651.8 | 2522.8 |
| 2022 | Comparable | 36,235 | 585.1 | 2757 |
| 2023 | Comparable | 35,883 | 549 | 2566.7 |
| 2024 | Comparable | 35,841 | 544.1 | 2714.8 |
Rock Island Police Department filed the 2024 UCR row behind Rock Island's 1,168 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 Rock Island in population. Their populations run from 33,610 to 37,893, against 35,841 here. Or use our side-by-side compare tool to benchmark two cities directly.
Rock Island sits at 544.1/100K violent (grade F); the Illinois cities below are the nearest matches after size peers are removed.
Rock Island at 544.1/100K violent and 2,714.8/100K property - matched below outside Illinois (≥10k pop, latest UCR vintage; not the in-state lists above).
544.1/100K here; nearest out-of-state matches.
2,714.8/100K here; violent-rate peers above excluded.
Out-of-state cities whose violent rate moved a similar share from 2023→2024 (-0.9% here); level-based peers above are excluded.
In 2024, Rock Island reported 195 violent crimes and 973 property crimes, for a total of 1,168 reported offenses.
From 2023 to 2024, Rock Island's violent crime rate decreased by 0.9%, and the property crime rate increased by 5.8%.
The most common crime type in Rock Island is larceny-theft, accounting for 35.4% of all reported crimes (414 incidents in 2024).
Mid-size read: Rock Island 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 Rock Island's mid-size city row is sourced and ranked.
Source: FBI Uniform Crime Reporting (UCR) Program CIUS Table 8 municipal crime rates · 2024 Rock Island, 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. Rock Island is scored in the mid-size municipal band (35,841 on the row). See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.