Where this data comes from and what it means.
The address you enter is matched against Toronto's official address registry (525,000+ points). The matched coordinates anchor every spatial query in the report. All distances are calculated from this point using haversine (straight-line) geometry.
Every data source in a Perimtr report belongs to one of two classes. Understanding the difference matters for how you interpret what you read.
Things that happened at a specific lat/lng. Counted within the 1000m circle around your address.
Crime incidents · Fire incidents
Building permits · 311 service requests
Front-yard parking · Cycling infrastructure
Street trees · Proximity POIs
Published at a boundary level. Attributed to the primary neighbourhood — the one with the largest share of your 1000m circle.
Population · Population density
Median household income · Renter share
311 ward totals · School data
Census 2021 (Statistics Canada)
Class 2 data is never area-weighted across your circle. If you cross-check our Census numbers against the City of Toronto's Neighbourhood Profile, you will see the same figures.
| Source | Class | Refresh |
|---|---|---|
| Toronto Police Service — Major Crime Indicators | Class 1 | Quarterly |
| Toronto Fire Services — Fire Incidents | Class 1 | Annual |
| City of Toronto — Building Permits | Class 1 | Weekly |
| City of Toronto — 311 Service Requests | Class 2 | Annual |
| City of Toronto — Front-Yard Parking | Class 1 | Weekly |
| City of Toronto — Heritage Register | Class 1 | Quarterly |
| City of Toronto — Cycling Network | Class 1 | Quarterly |
| City of Toronto Urban Forestry — Street Trees | Class 1 | Annual |
| City of Toronto — Parks & Green Space | Class 1 | Annual |
| Toronto Transit Commission — GTFS Stops & Routes | Class 1 | Weekly |
| Toronto Open Data — Address Points (525k+) | Class 1 | Annual |
| Toronto Open Data — Neighbourhood Boundaries (158) | Class 2 | Annual |
| Statistics Canada — Census 2021 | Class 2 | 5-year cycle |
| TDSB / TCDSB / Private — School Locations | Class 1 | Annual |