The final was played on Thursday between Barossa and Light and Eyre Peninsula, with Eyre Peninsula winning the toss and electing to bat first.
Hamish Newman (52 from 70 balls) was the biggest contributor for his team with a half-century, propelling Eyre Peninsula to a total of 155 after 50 overs.
Player of the Carnival, Barossa and Light’s Angus Handke, took three wickets in the final.
In reply, Barossa and Light’s Riley Greenlees made an important 63 runs, while Jack Mosey’s 31 and Cameron Curnow’s patient 22 (from 59 balls) helped them to victory with more than eight overs remaining.
Eyre Peninsula’s Jaiden Jude picked up three wickets for just 31 runs from his 10 overs.
Under 16 Country Cup awards
Spirit of Cricket: Upper North
Player of the Carnival: Angus Handke, Barossa and Light
Fielding Trophy: Jack Tiller, Mid North and Hamish Stewart, Upper North
Wicket Keeping Trophy: Ollie Dignan, Mid North
Batting Trophy: Jack Tiller, Mid North – 133 runs with a high score of 82
Bowling Trophy: Jack Tapfield, South East - 10 wickets with best figures of 5/10 and Will Charlton, Eyre Peninsula – 10 wickets with best figures of 4/36