Seymour, CT has a A+ safety grade (90/100) with a violent crime rate of 47 per 100,000, 87% below the national average.
FBI UCR 2024 · per-capita rates · mid-size city
Seymour (17,034 people) sits in the mid-size municipal band. This page opens with per-100,000 FBI UCR rates, then CT and national benchmarks.
Data updated 2026-08-24
Seymour, CT carries a PlainCrime A+ safety grade with violent crime 87% below the U.S. average
According to the FBI Uniform Crime Reporting (UCR) Program for 2024, Seymour, CT shows violent crime at 47 per 100,000 residents and property crime at 575.3 per 100,000. Violent crime runs 87% 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
Seymour reported 8 violent offences in 2024 against a population of 17,034. 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.
Comparable rate records
The nearest comparable 2024 records to Seymour's 47.0 violent-crime rate per 100,000 are Branford (46.4), Naugatuck (50.1), Vernon (42.3), Shelton (42.2). 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.
2020–2024 direction
Across 5 comparable reporting years, the rate moved from 67.0 per 100,000 in 2020 to 47.0 in 2024 (-29.9%). The highest observed value was 78.2 in 2022 and the lowest 35.6 in 2023. Years whose submission failed the completeness test are left out of this comparison rather than plotted as change.
Property-offense composition
Larceny-theft is 63.3% of reported property offenses in Seymour, against a cohort median of 76.5%. The remainder is burglary (9) and motor vehicle theft (27). Composition differences of this size usually track what kinds of places and property are present in a jurisdiction.
Position in the state cohort
At 47.0 reported violent offenses per 100,000 residents in 2024, Seymour ranks 51 of 94 — above 43 of the 93 other Connecticut cities whose 2024 submission passes this site’s completeness test. That is -19.3% against the cohort median of 58.2. 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 Seymour'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 8 reported violent incidents in a population of 17,034. 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.
Mid-size municipal totals above are reported offenses, not safety advice for any single block. Reporting completeness still varies by year and agency.
Across 14.5 Census sq mi, Seymour logged 6.8 property and 0.6 violent offenses per square mile in 2024.
Seymour's 2024 book concentrates in larceny-theft (58% of 106 offenses; mix index 4,187).
Violent offenses are only 8% of the municipal total - a property-led book.
Seymour offense mix (2024)
Density uses Census Gazetteer land area (14.5 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 | 98 | 575.3 |
| Larceny-Theft | 62 | 364 |
| Motor Vehicle Theft | 27 | 158.5 |
| Burglary | 9 | 52.8 |
| Arson | 0 | 0 |
| Violent Crime | 8 | 47 |
| Aggravated Assault | 7 | 41.1 |
| Rape | 1 | 5.9 |
| Murder | 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 | 16,426 | 67 | 961.9 |
| 2021 | Comparable | 16,306 | 67.5 | 686.9 |
| 2022 | Comparable | 16,634 | 78.2 | 781.5 |
| 2023 | Comparable | 16,846 | 35.6 | 605.5 |
| 2024 | Comparable | 17,034 | 47 | 575.3 |
Seymour Police Department filed the 2024 UCR row behind Seymour's 106 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 Connecticut cities closest to Seymour in population. Their populations run from 15,641 to 18,398, against 17,034 here. Or use our side-by-side compare tool to benchmark two cities directly.
Seymour sits at 47/100K violent (grade A+); the Connecticut cities below are the nearest matches after size peers are removed.
Seymour at 47/100K violent and 575.3/100K property - matched below outside Connecticut (≥10k pop, latest UCR vintage; not the in-state lists above).
47/100K here; nearest out-of-state matches.
575.3/100K here; violent-rate peers above excluded.
In 2024, Seymour reported 8 violent crimes and 98 property crimes, for a total of 106 reported offenses.
From 2023 to 2024, Seymour's violent crime rate increased by 32%, and the property crime rate decreased by 5%.
The most common crime type in Seymour is larceny-theft, accounting for 58.5% of all reported crimes (62 incidents in 2024).
Mid-size read: Seymour 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 Seymour's mid-size city row is sourced and ranked.
Source: FBI Uniform Crime Reporting (UCR) Program CIUS Table 8 municipal crime rates · 2024 Seymour, CT 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. Seymour is scored in the mid-size municipal band (17,034 on the row). See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.