Список региона
- N1A 1B8 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1B9 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1C1 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1C5 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1C6 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1C7 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1C8 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1C9 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1E1 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1E2 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1E3 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1E4 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1E5 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1E7 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1E6 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1E8 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1E9 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1G1 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1G2 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1G4 - Dunnville, Haldimand-Norfolk, Ontario