Postal Code L1S

Ajax Southwest · Ajax, Ontario

L1S is the postal code of Ajax Southwest in Ajax, Ontario, Canada. This list covers forward sortation areas (FSA) — the first three characters of a Canadian postal code, such as T0A.

Postal Code: L1S
Area: Ajax
Province: Ontario
Country: Canada

Place with postal code L1S

Place	Area	Location
Ajax Southwest	Ajax	43.840, -79.025

Near Toronto

The nearest major city is Toronto, about 33 km away.

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Nearby postal codes

All postal codes in Ajax →

Frequently asked questions

Which places use postal code L1S?

Ajax Southwest.

Which area and province is L1S in?

Ajax, Ontario, Canada.

What is the nearest major city to L1S?

Toronto, about 33 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.