Postal Code L4J
Thornhill West · Ontario
L4J is the postal code of Thornhill West in Ontario, Canada. This list covers forward sortation areas (FSA) — the first three characters of a Canadian postal code, such as T0A.
- Postal Code
- L4J
- Area
- —
- Province
- Ontario
- Country
- Canada
Place with postal code L4J
| Place | Area | Location |
|---|---|---|
| Thornhill West | — | 43.816, -79.453 |
Near Toronto
The nearest major city is Toronto, about 13 km away.
Nearby postal codes
Frequently asked questions
Which places use postal code L4J?
Thornhill West.
Which area and province is L4J in?
Ontario, Canada.
What is the nearest major city to L4J?
Toronto, about 13 km away.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.