Lista regionu
- N1A 1M3 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1M4 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1M5 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1M6 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1M7 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1M8 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1M9 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1N1 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1N2 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1N3 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1N5 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1N4 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1N6 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1N7 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1N8 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1N9 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1P1 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1P2 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1P3 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1P4 - Dunnville, Haldimand-Norfolk, Ontario