| 2020-21 | Season suspended | |||
| 2019-20 | Competition suspended | |||
| 2018-19 | Long Melford | 1 | Fakenham Town | 0 |
| 2017-18 | Brantham Athletic | 4 | Thetford Town | 2 |
| 2016-17 | Mildenhall Town | 2 | Newmarket Town | 1 |
| 2015-16 | Mildenhall Town | 2 | Norwich United | 1 |
| 2014-15 | Norwich United | 3 | Walsham le Willows | 0 |
| 2013-14 | Newmarket Town | 2 | Felixstowe & Walton Utd | 1 |
| 2012-13 | Wisbech Town | 2 | Stanway Rovers | 1 |
| 2011-12 | Stanway Rovers | 2 | Norwich United | 1 |
| 2010-11 | Wisbech Town | 1 | Wroxham | 0 |
| 2009-10 | Needham Market | 2 | Kirkley & Pakefield | 1 |
| 2008-09 * | Stanway Rovers | 2 | Leiston | 2 |
| 2007-08 | Needham Market | 2 | Gorleston | 1 |
| 2006-07 | Lowestoft Town | 3 | Ipswich Wanderers | 0 |
| 2005-06 | AFC Sudbury | 2 | Lowestoft Town | 1 |
| 2004-05 | Halstead Town | 3 | Histon Reserves | 1 |
| 2003-04 | Maldon Town | 2 | Soham Town Rangers | 1 |
| 2002-03 | Wroxham | 2 | Clacton Town | 1 |
| 2001-02 | Clacton Town | 1 | Dereham Town | 0 |
| 2000-01 * | Lowestoft Town | 0 | Fakenham Town | 0 |
| 1999-00 | Wroxham | 3 | Diss Town | 1 |
| 1998-99 | Sudbury Wanderers | 7 | Felixstowe Port & Town | 2 |
| 1997-98 | Woodbridge Town | 4 | Warboys Town | 2 |
| 1996-97 | Harwich & Parkeston | 2 | Haverhill Rovers | 0 |
| 1995-96 | Halstead Town | 4 | Fakenham Town | 0 |
| 1994-95 | Wisbech Town | 3 | Newmarket Town | 1 |
| 1993-94 | Woodbridge Town | 2 | Chatteris Town | 0 |
| 1992-93 | Wroxham | 6 | Cornard United | 0 |
| 1991-92 + | Norwich United | 5 | Gorleston | 2 |
| 1990-91 | Histon | 2 | Wroxham | 1 |
| 1989-90 | Sudbury Town | 2 | Great Yarmouth Town | 1 |
| 1988-89 | Sudbury Town | 3 | Halstead Town | 0 |
| 1987-88 | Braintree Town | 1 | Haverhill Rovers | 0 |
| 1986-87 | Sudbury Town | 2 | Wisbech Town | 1 |
| 1985-86 | Tiptree United | 1 | March Town United | 0 |
| 1984-85 | Tiptree United | 2 | Histon | 0 |
| 1983-84 | Lowestoft Town | 2 | Great Yarmouth Town | 1 |
| 1982-83 | Sudbury Town | 2 | Colchester United Res. | 1 |
| 1981-82 | Tiptree United | 2 | Gorleston | 0 |
| 1980-81 | Great Yarmouth Town | 5 | Clacton Town | 1 |
| 1979-80 # | Ely City | 4 | Lowestoft Town | 2 |
| 1978-79 # | Cambridge United Res. | 4 | Gorleston | 2 |
| 1977-78 # | Lowestoft Town | 3 | Bury Town | 2 |
| 1976-77 # | Sudbury Town | 7 | Wisbech Town | 3 |
| 1975-76 # | Lowestoft Town | 2 | Sudbury Town | 1 |
| 1974-75 # | Great Yarmouth Town | 3 | Braintree & Crittall Ath | 1 |
| 1973-74 # | Clacton Town | 4 | Wisbech Town | 3 |
| 1972-73 # | Hertford Town | 7 | Great Yarmouth Town | 1 |
| 1971-72 # | Wisbech Town | 5 | Lowestoft Town | 3 |
| 1970-71 # | Wisbech Town | 6 | Ely City | 3 |
| 1969-70 # | Sudbury Town | 6 | St. Neots Town | 0 |
| 1968-69 # | Lowestoft Town | 8 | Clacton Town | 7 |
| 1967-68 # | Chatteris Town | 3 | Newmarket Town | 2 |
| 1966-67 # | Lowestoft Town | 11 | Great Yarmouth Town | 5 |
| 1965-66 # | Lowestoft Town | 6 | Haverhill Rovers | 2 |
| 1964-65 # | Haverhill Rovers | 3 | Stowmarket | 0 |
| 1963-64 ~ | Bury Town | Lowestoft Town | ||
| 1962-63 | Bad Weather | |||
| 1961-62 # | Bury Town | 4 | Romford Reserves | 2 |
| 1960-61 # | March Town United | 3 | Tottenham Hotspur “A” | 2 |
| 1959-60 # | Chelmsford City Res. | 6 | Peterborough Utd Res | 2 |
| 1958-59 # | Tottenham Hotspur “A” | 10 | Peterborough Utd Res | 3 |
| 1957-58 # | Colchester United Res. | 10 | Cambridge United | 1 |
| 1956-57 # | Peterborough Utd Res | 5 | Spalding United | 0 |
| 1955-56 # | Gorleston | 3 | Tottenham Hotspur “A” | 1 |
| 1954-55 # | Lowestoft Town | 5 | Peterborough Utd Res | 2 |
| 1953-54 # | Kings Lynn | 5 | Lowestoft Town | 2 |
| 1952-53 | Colchester United Res. | 5 | Gorleston | 2 |
| 1951-52 | Gillingham Res. | 2 | Harwich & Parkeston | 1 |
| 1950-51 * | Wisbech Town | 1 | Chelmsford City Res. | 0 |
| 1949-50 | Chelsea “A” | 4 | Gillingham Res. | 2 |
| 1948-49 | Tottenham Hotspur “A” | 1 | Chelsea “A” | 0 |
| 1947-48 | Colchester United Res. | 5 | Clacton Town | 0 |
| 1946-47 * | Colchester United Res. | 2 | Harwich & Parkeston | 0 |
| 1938-39 | Lowestoft Town | 4 | Colchester United Res. | 1 |
| 1937-38 | Great Yarmouth Town | 4 | Newmarket Town | 1 |
| 1936-37 | Harwich & Parkeston | 2 | Lowestoft Town | 0 |
| 1935-36 | Harwich & Parkeston | 2 | Crittall Athletic | 1 |
* won on penalties
# aggregate score over two legs, match scores in brackets
+ won in a replay
~ won a 3 team pool
Thurlow Nunn League 