Photo: Canmenwalker · CC BY 4.0Fewer crimes per resident are recorded in Thornhill than in 66% of Canadian towns
Against usual levels of 75.2 and 54.2, violent and non-violent offences here reach 67.4 and 47.4. The Safety Grade comes out at B+, drawn from crime the police covering Thornhill reported through 2023 to 2025: #295 of 862 in Ontario. On top of that, the index fell from 54.6 in 2023 to 50.3 in 2025. Annual rates stand at 9.7 violent incidents and 21.4 incidents of property crime for every thousand residents, next to 10.8 and 25.1 in the typical Canadian town of 50,000+.
Statistics Canada, police-reported crime, 2023–2025 means. The index weighs each crime by its seriousness; rates are incidents per 1,000 residents a year. Area-wide: crime severity and crime rate, counted over the York Region service area.
The B+ for Thornhill, and how it is built
How sure: Less sure, since one city-wide figure stands behind it, and Thornhill can differ a long way from its city’s average.
The grade weighs the Crime Severity Index and its violent half, averaged over 2023–2025, against every Canadian town and city neighbourhood of 1,000 people or more.
Its place: #295 of 862 in Ontario and #570 of 2,572 Canadian towns.
The Crime Severity Index and its two halves, beside the typical figure for Canadian towns of 50,000 people or more.
York Region’s crime, type by type
These are York Region’s figures, for its police’s whole area: they aren’t published by neighbourhood.
Against the typical town its size, York Region runs highest on motor vehicle theft (2.6 per 1,000 against 1.7). Sexual assault and mischief sit below it.
Every Statistics Canada violation line
| Violation | Incidents a year | Per 1,000 | Cleared |
|---|---|---|---|
| Homicide | 14.7 | 0.01 | 80% |
| Sexual violations against children | 128.7 | 0.1 | 58% |
| Assaults against a peace officer | 153.7 | 0.1 | 95% |
| Firearms: use, discharge, pointing | 97.7 | 0.08 | 38% |
| Robbery | 617.3 | 0.5 | 47% |
| Forcible confinement or kidnapping | 91.7 | 0.07 | 65% |
| Other violent violations | 290.7 | 0.2 | 41% |
| Breaking and entering | 2,306 | 1.8 | 18% |
| Possession of stolen property | 291 | 0.2 | 85% |
| Theft of a motor vehicle | 3,372.3 | 2.6 | 6% |
| Theft over $5,000 | 732.7 | 0.6 | 15% |
| Theft under $5,000 | 10,573 | 8.3 | 25% |
| Mischief | 2,944 | 2.3 | 24% |
| Weapons violations | 266.3 | 0.2 | 66% |
| Administration of justice violations | 4,033.3 | 3.1 | 96% |
| Other Criminal Code violations | 552.7 | 0.4 | 58% |
| Drug violations | 636 | 0.5 | 91% |
| Impaired driving | 1,207.3 | 0.9 | 99% |
| Failing to stop or remain | 3,411.7 | 2.7 | 8% |
Statistics Canada’s violation groups for the whole police service or detachment: incidents a year are its own, the town’s share is only estimated in the tiles. Cleared: incidents solved by a charge or otherwise, as a share of those reported.
Incidents per 1,000 residents a year, 2023–2025 means, against the typical figure for Canadian towns of 50,000 people or more.
Thornhill, year by year
Crime Severity Index
Its index has not been as high since 2023 (54.6); the low point came in 2025, at 50.3. The comparison line, the typical Canadian town of 50,000+, runs from 64.3 in 2023 to 59.2 by 2025.
Every year as a table
| Year | Thornhill | Typical town of 50,000+ |
|---|---|---|
| 2025 | 50.3 | 59.2 |
| 2024 | 53.6 | 59.9 |
| 2023 | 54.6 | 64.3 |
Statistics Canada, Crime Severity Index by police service, each year as published. Typical: the median of Canadian towns of 50,000 people or more.
The Crime Severity Index of the police covering Thornhill, each year, against the typical Canadian town of 50,000+.
Crime in the places around Thornhill
| Town | People | Severity index | Violent index | Safety |
|---|---|---|---|---|
| Thornhill | 17,940 | 52.8 | 67.4 | B+ |
| Steeles Corners | 9,468 | 52.8 | 67.4 | B+ |
| Beverley Glen | 38,720 | 52.8 | 67.4 | B+ |
| Newtonbrook West | 23,978 | 66 | 92.6 | C |
| Langstaff | 8,147 | 52.8 | 67.4 | B+ |
| Newtonbrook East | 15,996 | 66 | 92.6 | B |
| Westminster-Branson | 26,027 | 66 | 92.6 | A |
Every neighbour with a figure of its own has a higher index than Thornhill. Same police, same number: 3 neighbours drop out of the comparison for that reason.
Each place’s police figures, 2023–2025 means.
What this data can and can’t tell you
- Cleared, not convicted. A crime is cleared when police lay or recommend a charge, or solve it another way; the weighted rate counts serious crimes for more.
- What the index measures. The Crime Severity Index adds up police-reported crime, each kind weighted by the sentences courts give it, so one robbery counts for more than many thefts. In Statistics Canada’s words, “The CSI is not an indicator of overall safety and should be interpreted in the broader community context.”
- The whole city’s numbers. Its city publishes no open neighbourhood crime figures, so every figure for Thornhill is the city police’s, for the whole city.
- 100 is Canada in 2006. Figures are relative to one fixed point, Canada in 2006 at 100, rather than to this year’s national number.
Questions about safety in Thornhill
Is Thornhill safe?
Thornhill scores 52.8 on Statistics Canada’s Crime Severity Index (2023–2025 mean), where the typical figure for Canadian towns of 50,000 people or more is 60.3; per 1,000 residents a year that is 9.7 violent incidents and 21.4 property crimes.
What is the most common crime in Thornhill?
The three biggest groups are theft under $5,000 at 8.3, fraud at 5.3 and assault at 4.9, each per 1,000 residents a year.
Is crime going up in Thornhill?
Down 8%: 54.6 in 2023, 50.3 in 2025.
How much of Thornhill’s crime do police solve?
The weighted clearance rate is 35%: 53% for violent crime and 25% for non-violent. For the typical Canadian town of 50,000+ it is 38%.
Whose figures are these?
Those of the police service that covers the whole city.
Source: Statistics Canada, police-reported crime by police service and detachment, 2023–2025 (Statistics Canada Open Licence); TownRatings calculation.
Sources: Statistics Canada, Crime severity index and weighted clearance rates, police services (tables 35-10-0186 to 0190, 0061, 0063, 0064), 2023–2025 · Statistics Canada, Incident-based crime statistics by detailed violations, police services (35-10-0178 to 0185) · Safety Grade: TownRatings calculation. Under the Statistics Canada Open Licence.
Adapted from Statistics Canada (Census of Population 2021, population estimates 2025, 2021 census boundaries) under the Statistics Canada Open Licence; this does not constitute an endorsement by Statistics Canada. Neighbourhood names in some cities © OpenStreetMap contributors (ODbL).