| 2. Round | 11/08/2018 | Newport County | - | Crewe Alexandra | 1:0 | ||||
| 3. Round | 18/08/2018 | Exeter City | - | Newport County | 1:1 |  |
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| 4. Round | 21/08/2018 | Newport County | - | Notts County | 3:2 | |
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| 5. Round | 25/08/2018 | Newport County | - | Grimsby Town | 1:0 | ||||
| 6. Round | 01/09/2018 | Port Vale FC | - | Newport County | 1:2 | ||||
| 8. Round | 15/09/2018 | Newport County | - | Yeovil Town | 0:6 | ||||
| 11. Round | 02/10/2018 | Newport County | - | Macclesfield Town | 3:3 | ||||
| 12. Round | 06/10/2018 | Forest Green Rovers | - | Newport County | 1:1 | ||||
| 14. Round | 20/10/2018 | Crawley Town | - | Newport County | 4:1 | ||||
| 16. Round | 27/10/2018 | Newport County | - | Morecambe FC | 1:1 | ||||
| 17. Round | 03/11/2018 | Carlisle United | - | Newport County | 3:2 | ||||
| 18. Round | 17/11/2018 | Newport County | - | Colchester United | 2:0 | ||||
| 19. Round | 24/11/2018 | Cheltenham Town | - | Newport County | 2:1 | ||||
| 23. Round | 22/12/2018 | Lincoln City | - | Newport County | 3:2 | ||||
| 25. Round | 29/12/2018 | Newport County | - | Crawley Town | 0:0 | |
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| 26. Round | 01/01/2019 | Stevenage FC | - | Newport County | 1:0 |
Wales