The 1956–57 season was Newport County's 29th season in the Football League and 10th consecutive season in the Third Division South since relegation from the Second Division at the end of the 1946–47 season.

Source: rsssf.com P = Matches played; W = Matches won; D = Matches drawn; L = Matches lost; F = Goals for; A = Goals against; GA = Goal average; Pts = Points