The List of Newport County A.F.C. seasons is a collection of results from all seasons played by the club from 1912 to the present day.

Key

Key to league record P – games played W – games won D – games drawn L – games lost F – goals for A – goals against Pts – points Pos – final position Key to cup rounds DNP – did not participate NH – not held PRE – preliminary round QR1 – first qualifying round QR2 – second qualifying round QR3 – third qualifying round QR4 – fourth qualifying round, etc. R1 – first round R2 – second round R3 – third round R4 – fourth round QF – quarter-finals SF – semi-finals Key to divisions D2 – Football League Second Division D3 – Football League Third Division D3S – Football League Third Division South D4/L2 – Football League Fourth Division/Football League Two Conf – Football Conference Conf S – Football Conference South SLP – Southern League Premier Division SLM – Southern League Midland Division SLS – Southern League Southern Division SLW – Southern League Western Division SL1 – Southern League First Division SL2 – Southern League Second Division Hell – Hellenic League Division shown in bold when it changes due to promotion or relegation.