Список региона
- N1A 1P5 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1P6 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1P7 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1P8 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1P9 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1R1 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1R2 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1R3 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1R4 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1R5 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1R6 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1R7 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1R8 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1R9 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1S1 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1S2 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1S3 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1S4 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1S5 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1S6 - Dunnville, Haldimand-Norfolk, Ontario