Postal Code L3X

Newmarket Southwest · Newmarket, Ontario

L3X is the postal code of Newmarket Southwest in Newmarket, Ontario, Canada. This list covers forward sortation areas (FSA) — the first three characters of a Canadian postal code, such as T0A.

Postal Code: L3X
Area: Newmarket
Province: Ontario
Country: Canada

Place with postal code L3X

Place	Area	Location
Newmarket Southwest	Newmarket	44.043, -79.491

Near Toronto

The nearest major city is Toronto, about 38 km away.

Local time
Weather forecast
Sunrise & sunset

Nearby postal codes

All postal codes in Newmarket →

Frequently asked questions

Which places use postal code L3X?

Newmarket Southwest.

Which area and province is L3X in?

Newmarket, Ontario, Canada.

What is the nearest major city to L3X?

Toronto, about 38 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.