Ottawa, IL has a B safety grade (68/100) with a violent crime rate of 187 per 100,000, 47% below the national average.
FBI UCR 2024 · per-capita rates · mid-size city
Ottawa (18,722 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 2026-09-05
Ottawa, IL is close to the national middle for violent crime, and earns a B PlainCrime safety grade, where violent crime runs 47% below the U.S. average
According to the FBI Uniform Crime Reporting (UCR) Program for 2024, Ottawa, IL shows violent crime at 186.9 per 100,000 residents and property crime at 1,495.6 per 100,000. Violent crime runs 47% 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.
2020–2024 direction
Across 5 comparable reporting years, the rate moved from 111.2 per 100,000 in 2020 to 186.9 in 2024 (+68.1%). The highest observed value was 279.9 in 2023 and the lowest 61.1 in 2021. 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 Ottawa's 186.9 violent-crime rate per 100,000 are La Grange (187.4), Homewood (186.1), South Elgin (188.4), Streator (188.5). 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.
Position in the state cohort
At 186.9 reported violent offenses per 100,000 residents in 2024, Ottawa ranks 159 of 506 — above 347 of the 505 other Illinois cities whose 2024 submission passes this site’s completeness test. That is +87.6% 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.
Property counts dominate Ottawa'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 14.9 Census sq mi, Ottawa logged 18.8 property and 2.3 violent offenses per square mile in 2024.
Ottawa's 2024 book concentrates in larceny-theft (66% of 315 offenses; mix index 4,789).
Violent offenses are only 11% of the municipal total - a property-led book.
Ottawa offense mix (2024)
Density uses Census Gazetteer land area (14.9 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 | 280 | 1495.6 |
| Larceny-Theft | 209 | 1116.3 |
| Burglary | 54 | 288.4 |
| Motor Vehicle Theft | 17 | 90.8 |
| Arson | 1 | 5.3 |
| Violent Crime | 35 | 186.9 |
| Aggravated Assault | 22 | 117.5 |
| Rape | 12 | 64.1 |
| Robbery | 1 | 5.3 |
| Murder | 0 | 0 |
Lead series · fell across 5 comparable years · FBI UCR
Secondary series · rose · 2020-2024 · FBI UCR
| Year | Coverage | Population | Violent Rate | Property Rate |
|---|---|---|---|---|
| 2020 | Comparable | 17,983 | 111.2 | 1584.8 |
| 2021 | Comparable | 18,017 | 61.1 | 194.3 |
| 2022 | Comparable | 18,696 | 176.5 | 738.1 |
| 2023 | Comparable | 18,579 | 279.9 | 1496.3 |
| 2024 | Comparable | 18,722 | 186.9 | 1495.6 |
Ottawa Police Department filed the 2024 UCR row behind Ottawa's 315 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 Ottawa in population. Their populations run from 18,269 to 19,121, against 18,722 here. Or use our side-by-side compare tool to benchmark two cities directly.
Ottawa sits at 186.9/100K violent (grade B); the Illinois cities below are the nearest matches after size peers are removed.
Ottawa at 186.9/100K violent and 1,495.6/100K property - matched below outside Illinois (≥10k pop, latest UCR vintage; not the in-state lists above).
186.9/100K here; nearest out-of-state matches.
1,495.6/100K here; violent-rate peers above excluded.
In 2024, Ottawa reported 35 violent crimes and 280 property crimes, for a total of 315 reported offenses.
From 2023 to 2024, Ottawa's violent crime rate decreased by 33.2%, and the property crime rate increased by 0%.
The most common crime type in Ottawa is larceny-theft, accounting for 66.3% of all reported crimes (209 incidents in 2024).
Mid-size read: Ottawa 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 Ottawa's mid-size city row is sourced and ranked.
Source: FBI Uniform Crime Reporting (UCR) Program CIUS Table 8 municipal crime rates · 2024 Ottawa, IL rates use the reporting-year population on the municipal row.
Bulk download: city crime dataset (CSV/JSON)
Put this to use
Put the Ottawa, 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. Ottawa is scored in the mid-size municipal band (18,722 on the row). See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.