In Division 2, Greenfield were champions with Nantlle Vale as runners-up.
Holywell Town were champions in the previous season and were promoted to the Cymru Alliance.
They were replaced by St Asaph City, Llangefni Town and Trearddur Bay, who were Division 2 champions, second and third place runners-ups, respectively from the previous season were promoted to Division 1.
St Asaph City were champions in the previous season and were promoted to Division 1 along with runners-ups, Llangefni Town and Trearddur Bay.
They were replaced by Gwynedd League champions, Llanllyfni and Vale of Clwyd and Conwy Football League champions, Prestatyn Sports were promoted to Division 2.