Address counts aggregated to H3 hexagons at four resolutions, for density mapping that does not depend on administrative boundaries.
Why hexagons
Administrative boundaries are the wrong unit for density. Census tracts vary enormously in area, so a choropleth built on them shows you the shape of the tracts as much as the shape of the data. Hexagons are equal-area, have no corner-adjacency problem, and nest cleanly across resolutions.
Resolutions supplied
| Resolution | Approx. edge | Typical use |
|---|---|---|
| 7 | 1.2 km | Regional overview |
| 8 | 460 m | Municipal planning |
| 9 | 175 m | Neighbourhood analysis |
| 10 | 66 m | Block-level detail |
Fields
Each hexagon carries the address count, the count of addresses with unit detail, the dominant land use of the parcels beneath it, and the change in count since the previous release.
A caution on small counts
At resolution 10 in low-density areas, many hexagons hold one or two addresses. Mapping those directly produces a display that is mostly noise and, in sparse areas, comes close to identifying individual properties. Use resolution 8 or 9 for anything published.