Northumberland Postal Codes, Ontario Canada

Find all official postal codes and zip codes for Northumberland, located in Ontario, Canada. The table below lists the specific postal codes for various places, towns, and neighborhoods within Northumberland to ensure your mail and packages are correctly routed.

Northumberland on the Map

The map above highlights the geographic boundaries of the Northumberland districts in Canada. The postal codes listed on this page correspond to specific towns, villages, and post offices within this area.

What to Know About Northumberland

Key Facts

Northumberland is a county located in the central-eastern part of Ontario, Canada, situated along the northern shore of Lake Ontario. This administrative region occupies a strategic position between the Greater Toronto Area to the west and the historic regions of Eastern Ontario. Covering approximately 1,905 square kilometers, Northumberland County serves as an important transitional zone between urban and rural landscapes in southern Ontario. With a population of around 89,000 residents, the county maintains a balanced mix of agricultural lands, small urban centers, and picturesque waterfront communities. The county is divided into seven lower-tier municipalities, including the towns of Cobourg and Port Hope, which serve as the primary urban centers, along with several townships that preserve the region's agricultural heritage and natural landscapes. This administrative structure allows for coordinated regional planning while maintaining local governance across its diverse communities. For those seeking postal code information or detailed location data, Northumberland County's municipal divisions provide accessible regional organization for navigation and service delivery throughout its territory.

Neighboring Regions

* Peterborough County

* Kawartha Lakes

* Durham Region

* Hastings County

* Prince Edward County