| Season | Champions | Runners-up |
| 2022-23 | Ipswich Wanderers | Thetford Town |
| 2021-22 | Gorleston | Wroxham |
| 2018-19 | Histon | Woodbridge Town |
| 2017-18 | Coggeshall Town | Felixstowe & Walton United |
| 2016-17 | Mildenhall Town | Felixstowe & Walton United |
| 2015-16 | Norwich United | Godmanchester Rovers |
| 2014-15 | Norwich United | Godmanchester Rovers |
| 2013-14 | Hadleigh United | Brightlingsea Regent |
| 2012-13 | Dereham Town | Wisbech Town |
| 2011-12 | Wroxham | Ely City |
| 2010-11 | Leiston | Dereham Town |
| 2009-10 | Needham Market | CRC |
| 2008-09 | Lowestoft Town | CRC |
| 2007-08 | Soham Town Rangers | Needham Market |
| 2006-07 | Wroxham | Mildenhall Town |
| 2005-06 | Lowestoft Town | Bury Town |
| 2004-05 | AFC Sudbury | Bury Town |
| 2003-04 | AFC Sudbury | Maldon Town |
| 2002-03 | AFC Sudbury | Wroxham |
| 2001-02 | AFC Sudbury | Wroxham |
| 2000-01 | AFC Sudbury | Gorleston |
| 1999-00 | Histon | Wroxham |
| 1998-99 | Wroxham | Fakenham Town |
| 1997-98 | Wroxham | Ely City |
| 1996-97 | Wroxham | Wisbech Town |
| 1995-96 | Halstead Town | Diss Town |
| 1994-95 | Halstead Town | Wroxham |
| 1993-94 | Wroxham | Halstead Town |
| 1992-93 | Wroxham | Wisbech Town |
| 1991-92 | Wroxham | Stowmarket Town |
| 1990-91 | Wisbech Town | Braintree Town |
| 1989-90 | Sudbury Town | Thetford Town |
| 1988-89 | Sudbury Town | Braintree Town |
| 1987-88 | March Town United | Braintree Town |
| 1986-87 | Sudbury Town | Braintree Town |
| 1985-86 | Sudbury Town | Colchester United Res |
| 1984-85 | Braintree Town | Sudbury Town |
| 1983-84 | Braintree Town | Wisbech Town |
| 1982-83 | Saffron Walden Town | Gorleston |
| 1981-82 | Tiptree United | Sudbury Town |
| 1980-81 | Gorleston | Sudbury Town |
| 1979-80 | Gorleston | Tiptree United |
| 1978-79 | Haverhill Rovers | Great Yarmouth Town |
| 1977-78 | Lowestoft Town | Great Yarmouth Town |
| 1976-77 | Wisbech Town | Sudbury Town |
| 1975-76 | Sudbury Town | Lowestoft Town |
| 1974-75 | Sudbury Town | Clacton Town |
| 1973-74 | Sudbury Town | Wisbech Town |
| 1972-73 | Gorleston | Sudbury Town |
| 1971-72 | Wisbech Town | Lowestoft Town |
| 1970-71 | Lowestoft Town | Wisbech Town |
| 1969-70 | Lowestoft Town | Ely City |
| 1968-69 | Great Yarmouth Town | Lowestoft Town |
| 1967-68 | Lowestoft Town | Great Yarmouth Town |
| 1966-67 | Lowestoft Town | Newmarket Town |
| 1965-66 | Lowestoft Town | Sudbury Town |
| 1964-65 | Lowestoft Town | Clacton Town |
| 1963-64 | Bury Town | Lowestoft Town |
| 1962-63 | Lowestoft Town | Chelmsford City Res |
| 1961-62 | Tottenham Hotspur A | Cambridge City Res |
| 1960-61 | Tottenham Hotspur A | March Town United |
| 1959-60 | Tottenham Hotspur A | Chelmsford City Res |
| 1958-59 | Colchester United Res | Tottenham Hotspur A |
| 1957-58 | Tottenham Hotspur A | Cambridge United |
| 1956-57 | Colchester United Res | Great Yarmouth Town |
| 1955-56 | Peterborough United Res | March Town United |
| 1954-55 | Arsenal A | Colchester United Res |
| 1953-54 | Kings Lynn | Clacton Town |
| 1952-53 | Gorleston | Kings Lynn |
| 1951-52 | Gillingham Reserves | Colchester United Res |
| 1950-51 | Gillingham Reserves | Tottenham Hotspur A |
| 1949-50 | Tottenham Hotspur A | Kings Lynn |
| 1948-49 | Chelmsford City Res | Tottenham Hotspur A |
| 1947-48 | Chelmsford City Res | Norwich City A |
| 1946-47 | Chelmsford City Res | Harwich & Parkeston |
| 1939-46 | No competition | |
| 1938-39 | Colchester United Res | Chelmsford City Res |
| 1937-38 | Lowestoft Town | Bury Town |
| 1936-37 | Crittall Athletic | Clacton Town |
| 1935-36 | Lowestoft Town/ Harwich & Parkeston |
Thurlow Nunn League 