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Lennox and Addington Postal Codes: K0H to K7R | Ontario

Postal Codes for Lennox and Addington range from K0H to K7R in Ontario, Canada. To find exact Postal Codes and postcodes within Lennox and Addington, choose from the districts below.

Postal Codes for Places in Lennox and Addington

Showing 18 places in Lennox and Addington. Last verified with official records on May 2, 2026.

Amherstview
Bath
Camden East
Centreville
Denbigh
Enterprise
Erinsville
Flinton
Kaladar
Napanee
Newburgh
Northbrook
Odessa
Roblin
Selby
Stella
Tamworth
Yarker

Sample Address Format for Lennox and Addington

Sender
[Sender Name]
[Sender Street Address]
[City, ZIP]
[Country]
Recipient
[Recipient Name]
Street Address / PO Box
Lennox and Addington, Ontario, K7M, K7N
CANADA

Lennox and Addington on the Map

The map above highlights the geographic boundaries of the Lennox and Addington districts in Canada.

Lennox and Addington Quick Facts

CountryCanada (CA)
Administrative PathCanada β†’ Ontario
Postal CodeK0H~K7R
ProvinceOntario
ISO CodesCA / CAN / 124
Top-level domain (ccTLD).ca
Coordinates44.586125, -77.106006
Places18

What to Know About Lennox and Addington

Key Facts

Lennox and Addington is a county located in Eastern Ontario, Canada, situated approximately halfway between Toronto and Montreal along the northern shore of Lake Ontario. This administrative region covers an area of approximately 2,842 square kilometers and serves as an important local government unit within the province of Ontario. Geographically positioned within the Great Lakes-St. Lawrence Lowlands region, Lennox and Addington features a diverse landscape that includes agricultural lands, forests, and numerous lakes and rivers that flow into Lake Ontario. The county is divided into four lower-tier municipalities: Loyalist Township, Greater Napanee, Addington Highlands, and Stone Mills, each with their own distinct communities and characteristics. With a population of approximately 42,000 residents, the region maintains a balance between rural character and accessible urban amenities, being within reasonable commuting distance to larger centers like Kingston and Belleville. The county's economy traditionally relied on agriculture and resource extraction but has diversified to include manufacturing, tourism, and services. For those seeking detailed postal code information and local services, the county's various municipalities and communities can be accessed through regional databases and local government resources.

Neighboring Regions

  • Frontenac County
  • Hastings County
  • Prince Edward County

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