| Season | 1st grade | 2nd grade | 3rd grade | 4th grade |
| ... | | | | |
| 1910/11 | Wauchope | | | |
| 1911/12 | Wauchope | | | |
| 1912/13 | Wauchope | | | |
| 1913/14 | Beechwood | | | |
| 1914/15 | Port Macquarie | | | |
| ... | | | | |
| 1920/21 | Wauchope | | | |
| ... | | | | |
| 1924/25 | Wauchope (B) | | | |
| ... | | | | |
| 1926/27 | Wauchope (A) | Hamilton | | |
| 1927/28 | Pembrooke | | | |
| 1928/29 | Wauchope (A) | | | |
| 1929/30 | Wauchope (B) | Byabarra | | |
| 1930/31 | Wauchope (Pirates) | One grade only (12 teams) |
| 1931/32 | Pembrooke | One grade only (11 teams) |
| 1932/33 | West Port Macquarie | One grade only (11 teams) |
| ... | | | | |
| 1934/35 | Port Macquarie | | | |
| 1935/36 | Wauchope | | | |
| ... | | | | |
| 1940/41 | Port Macquarie (A) | | | |
| ... | | | | |
| 1942/43 | No competition | | | |
| 1943/44 | No competition | | | |
| 1944/45 | No competition | | | |
| ... | | | | |
| 1948/49 | Wauchope | | | |
| ... | | | | |
| 1965/66 | | Wauchope (Colts) | | |
| ... | | | | |
| 1968/69 | Long Flat | Comboyne | Beechwood | |
| ... | | | | |
| 1972/73 | Wauchope | | | |
| ... | | | | |
| 1980/81 | Laurieton | B1 - Wilson River | B2 - Wauchope | C - Wilson River |
| ... | | | | |
| 1982/83 | | Beechwood | | |
| 1983/84 | | Beechwood | | |
| 1984/85 | Port Macquarie Rugby Union | Kendall | Wauchope | Wauchope |
| ... | | | | |
| 1987/88 | | Wauchope | | |
| 1988/89 | St Andrews | | | C2 - Rollands Plains |
| 1989/90 | Port City | | | |
| ... | | | | |
| 1991/92 | | | Wauchope | |
| 1999/00 | | St Andrews | | |
| ... | | | | |
| 2002/03 | St Andrews | | | |
| 2003/04 | | Bonny Hills | | |
| 2004/05 | Macquarie | St Andrews | Wauchope (1) | Port Pirates (2) |
| 2005/06 | Port Pirates | St Andrews | Port Pirates (1) | Camden Haven |
| 2006/07 | St Andrews | Wauchope | Port Pirates | Beechwood |
| 2007/08 | | Wauchope | | |
| 2008/09 | Wauchope | Wauchope | Beechwood | Beechwood (Beavers) |
| 2009/10 | Camden Haven | Wauchope | Port Pirates (Blue) | Camden Haven |
| 2010/11 | Macquarie | Wauchope | Wauchope (A) | Port Pirates (Sea Dogs) |
| 2011/12 | Macquarie | Wauchope | Comboyne | Comboyne |
| 2012/13 | Port City Magpies | Wauchope | Comboyne | Port City Magpies |
| 2013/14 | Wauchope | Wauchope | Port City Magpies (Swoopers) | Port Pirates (Rum Runners) |
| 2014/15 | Macquarie | Port City Magpies | Camden Haven (Red) | Macquarie |
| 2015/16 | Wauchope | Bonny Hills | Port Pirates (Buccaneers) | Port Pirates (Rum Runners) |
| 2016/17 | Macquarie | Macquarie | Port Pirates (Mutineers) | Port City Magpies |
| 2017/18 | Macquarie (MNCCC Premier League) | Port City Magpies | Port City Magpies (Swoopers) | Camden Haven |
| 2018/19 | United (MNCCC Premier League) | Camden Haven (1st) | Comboyne Kendall (Blue) (2nd) | Port City Magpies (Swoopers) (3rd) |