Список региона
- N1A 1S7 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1S8 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1S9 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1T1 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1T2 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1T3 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1T4 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1T5 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1T6 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1T7 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1T8 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1T9 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1V1 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1V2 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1V3 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1V4 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1V5 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1V6 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1V7 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1V8 - Dunnville, Haldimand-Norfolk, Ontario