Frontenac County Postal Codes
Ontario, Canada · 1 codes
Frontenac County in Ontario has one postal code, K0H, serving 1 places.
Postal codes in Frontenac County
| Postal Code | Places |
|---|---|
| K0H | Frontenac County, Addington County, Loyalist Shores and Southwest Leeds (Inverary) |
Frequently asked questions
What is the postal code of Frontenac County?
Frontenac County has one postal code: K0H.
How many places are listed in Frontenac County?
1 places.
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.