Regionenliste
- N1A 1V9 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1W1 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1W2 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1W3 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1W4 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1W5 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1W6 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1W7 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1W8 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1W9 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1X1 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1X2 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1X3 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1X4 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1X5 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1X6 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1X7 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1X8 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1X9 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1Y1 - Dunnville, Haldimand-Norfolk, Ontario