| # | Tier | Division | G | W | D | L | GF | GA | Pts | +- | ||
| 1946-47 | English Division Two | 42 | 18 | 14 | 10 | 58 | 44 | 50 | 14 | |||
| 1947-48 | English Division Two | 42 | 16 | 7 | 19 | 54 | 55 | 39 | -1 | |||
| 1948-49 | English Division Two | 42 | 15 | 17 | 10 | 51 | 45 | 47 | 6 | |||
| 1949-50 | English Division Two | 42 | 15 | 9 | 18 | 43 | 47 | 39 | -4 | |||
| 1950-51 | English Division Two | 42 | 9 | 12 | 21 | 44 | 69 | 30 | -25 | Relegated | ||
| 1951-52 | English Division Three North | 46 | 17 | 11 | 18 | 65 | 66 | 45 | -1 | |||
| 1952-53 | English Division Three North | 46 | 18 | 11 | 17 | 65 | 63 | 47 | 2 | |||
| 1953-54 | English Division Three North | 46 | 19 | 14 | 13 | 76 | 64 | 52 | 12 | |||
| 1954-55 | English Division Three North | 46 | 24 | 6 | 16 | 81 | 70 | 54 | 11 | |||
| 1955-56 | English Division Three North | 46 | 25 | 4 | 17 | 94 | 66 | 54 | 28 | |||
| 1956-57 | English Division Three North | 46 | 22 | 9 | 15 | 96 | 79 | 53 | 17 | |||
| 1957-58 | English Division Three North | 46 | 18 | 15 | 13 | 71 | 69 | 51 | 2 | |||
| 1958-59 | English Division Three | 46 | 17 | 10 | 19 | 67 | 64 | 44 | 3 | |||
| 1959-60 | English Division Three | 46 | 18 | 7 | 21 | 71 | 84 | 43 | -13 | |||
| 1960-61 | English Division Three | 46 | 10 | 12 | 24 | 67 | 87 | 32 | -20 | Relegated | ||
| 1961-62 | English Division Four | 44 | 14 | 9 | 21 | 70 | 87 | 37 | -17 | |||
| 1962-63 | English Division Four | 46 | 13 | 16 | 17 | 70 | 64 | 42 | 6 | |||
| 1963-64 | English Division Four | 46 | 15 | 12 | 19 | 57 | 71 | 42 | -14 | |||
| 1964-65 | English Division Four | 46 | 20 | 8 | 18 | 58 | 70 | 48 | -12 | |||
| 1965-66 | English Division Four | 46 | 13 | 13 | 20 | 62 | 78 | 39 | -16 | |||
| 1966-67 | English Division Four | 46 | 17 | 8 | 21 | 60 | 63 | 42 | -3 | |||
| 1967-68 | English Division Four | 46 | 21 | 11 | 14 | 71 | 50 | 53 | 21 | |||
| 1968-69 | English Division Four | 46 | 13 | 15 | 18 | 43 | 50 | 41 | -7 | |||
| 1969-70 | English Division Four | 46 | 27 | 10 | 9 | 77 | 32 | 64 | 45 | Promoted | ||
| 1970-71 | English Division Three | 46 | 17 | 17 | 12 | 66 | 38 | 51 | 28 | |||
| 1971-72 | English Division Three | 46 | 18 | 8 | 20 | 57 | 57 | 44 | 0 | |||
| 1972-73 | English Division Three | 46 | 17 | 9 | 20 | 57 | 61 | 43 | -4 | |||
| 1973-74 | English Division Three | 46 | 21 | 14 | 11 | 55 | 42 | 56 | 13 | |||
| 1974-75 | English Division Three | 46 | 16 | 12 | 18 | 62 | 66 | 44 | -4 | |||
| 1975-76 | English Division Three | 46 | 17 | 9 | 20 | 69 | 69 | 43 | 0 | |||
| 1976-77 | English Division Three | 46 | 14 | 10 | 22 | 56 | 64 | 38 | -8 | |||
| 1977-78 | English Division Three | 46 | 17 | 14 | 15 | 58 | 49 | 48 | 9 | |||
| 1978-79 | English Division Three | 46 | 13 | 14 | 19 | 51 | 65 | 40 | -14 | |||
| 1979-80 | English Division Three | 46 | 23 | 11 | 12 | 71 | 46 | 57 | 25 | |||
| 1980-81 | English Division Three | 46 | 23 | 10 | 13 | 72 | 48 | 56 | 24 | |||
| 1981-82 | English Division Three | 46 | 18 | 10 | 18 | 57 | 58 | 64 | -1 | |||
| 1982-83 | English Division Three | 46 | 8 | 13 | 25 | 43 | 68 | 37 | -25 | Relegated | ||
| 1983-84 | English Division Four | 46 | 15 | 15 | 16 | 59 | 61 | 60 | -2 | |||
| 1984-85 | English Division Four | 46 | 26 | 13 | 7 | 64 | 35 | 91 | 29 | Promoted | ||
| 1985-86 | English Division Three | 46 | 13 | 14 | 19 | 61 | 64 | 53 | -3 | |||
| 1986-87 | English Division Three | 46 | 13 | 15 | 18 | 56 | 69 | 54 | -13 | |||
| 1987-88 | English Division Three | 46 | 15 | 10 | 21 | 41 | 70 | 55 | -29 | |||
| 1988-89 | English Division Three | 46 | 14 | 7 | 25 | 51 | 86 | 49 | -35 | Relegated | ||
| 1989-90 | English Division Four | 46 | 19 | 14 | 13 | 63 | 50 | 71 | 13 | |||
| 1990-91 | English Division Four | 46 | 13 | 14 | 19 | 47 | 62 | 53 | -15 | |||
| 1991-92 | English Division Four | 42 | 14 | 11 | 17 | 49 | 61 | 53 | -12 | |||
| 1992-93 | English League Two | 42 | 15 | 11 | 16 | 59 | 63 | 56 | -4 | |||
| 1993-94 | English League Two | 42 | 16 | 14 | 12 | 55 | 48 | 62 | 7 | |||
| 1994-95 | English League Two | 42 | 23 | 12 | 7 | 62 | 37 | 81 | 25 | Promoted | ||
| 1995-96 | English League One | 46 | 20 | 12 | 14 | 56 | 51 | 72 | 5 | |||
| 1996-97 | English League One | 46 | 18 | 14 | 14 | 42 | 39 | 68 | 3 | |||
| 1997-98 | English League One | 46 | 16 | 17 | 13 | 46 | 44 | 65 | 2 | |||
| 1998-99 | English League One | 46 | 17 | 13 | 16 | 46 | 44 | 64 | 2 | |||
| 1999-00 | English League One | 46 | 7 | 15 | 24 | 34 | 63 | 36 | -29 | Relegated | ||
| 2000-01 | English League Two | 46 | 25 | 14 | 7 | 79 | 42 | 80 | 37 | Promoted | ||
| 2001-02 | English League One | 46 | 13 | 13 | 20 | 53 | 65 | 52 | -12 | |||
| 2002-03 | English League One | 46 | 14 | 8 | 24 | 43 | 73 | 50 | -30 | |||
| 2003-04 | English League One | 46 | 12 | 15 | 19 | 49 | 71 | 51 | -22 | |||
| 2004-05 | English League One | 46 | 14 | 15 | 17 | 55 | 62 | 57 | -7 | |||
| 2005-06 | English League One | 46 | 14 | 14 | 18 | 63 | 73 | 56 | -10 | |||
| 2006-07 | English League One | 46 | 12 | 11 | 23 | 45 | 53 | 47 | -8 | Relegated | ||
| 2007-08 | English League Two | 46 | 19 | 12 | 15 | 76 | 56 | 69 | 20 | |||
| 2008-09 | English League Two | 46 | 16 | 15 | 15 | 62 | 57 | 63 | 5 | |||
| 2009-10 | English League Two | 46 | 21 | 7 | 18 | 61 | 62 | 70 | -1 | |||
| 2010-11 | English League Two | 46 | 24 | 14 | 8 | 85 | 51 | 86 | 34 | Promoted | ||
| 2011-12 | English League One | 46 | 10 | 12 | 24 | 56 | 81 | 42 | -25 | Relegated | ||
| 2012-13 | English League Two | 46 | 18 | 13 | 15 | 60 | 45 | 67 | 15 | |||
| 2013-14 | English League Two | 46 | 23 | 15 | 8 | 71 | 40 | 84 | 31 | Promoted | ||
| 2014-15 | English League One | 46 | 19 | 12 | 15 | 68 | 55 | 69 | 13 | |||
| 2015-16 | English League One | 46 | 15 | 8 | 23 | 58 | 70 | 53 | -12 | |||
| 2016-17 | English League One | 46 | 9 | 10 | 27 | 43 | 78 | 37 | -35 | Relegated | ||
| 2017-18 | English League Two | 46 | 10 | 8 | 28 | 47 | 83 | 38 | -36 | Relegated | ||
| 2018-19 | English National League | 46 | 14 | 17 | 15 | 55 | 53 | 59 | 2 | |||
| 2019-20 | English National League | 38 | 11 | 11 | 16 | 55 | 65 | 44 | -10 | |||
| 2020-21 | English National League | 42 | 21 | 6 | 15 | 60 | 43 | 69 | 17 | |||
| 2021-22 | English National League | 44 | 20 | 14 | 10 | 69 | 51 | 74 | 18 | |||
| 2022-23 | English National League | 46 | 25 | 9 | 12 | 81 | 52 | 84 | 29 |