Aaron Mills-Koonce

Defenseman

2028 Class

6'1" Height

Right Hand

St. Anne's-Belfield School School

Madlax Capital Club

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About Aaron

Aaron Mills-Koonce is a 6'1" Defenseman in the 2028 class. Mills-Koonce attends St. Anne's-Belfield School in Virginia and plays club lacrosse for Madlax Capital. Mills-Koonce's Player Profile was created on January 18, 2026. Subscribe to Prep Lacrosse to see what our scouts have written about them.

Expert Analysis

CJ Mezzatesta

Prep Lacrosse Scout

Aaron Mills-Koonce Aaron Mills-Koonce 6'1" | D | Right Hand St. Anne's-Belfield School | 2028 VA is a 6’0 defender from St. Anne’s-Belfield School who brings size, strength, and intelligence to the defensive end. A physical and disciplined player, he consistently competes with toughness while maintaining strong positioning and awareness. Mills-Koonce is a true student of the game, pairing his on-field IQ with one of the strongest academic transcripts in his class. A varsity football player at STAB, he shows his multi-sport background in his physicality and competitive mindset. Though still raw, he is a highly promising young defender with significant upside as his game continues to develop.

4 months ago

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CJ Mezzatesta

Prep Lacrosse Scout

Aaron Mills-Koonce Aaron Mills-Koonce 6'1" | D | Right Hand St. Anne's-Belfield School | 2028 VA is a 6’1 right-handed defender from St. Anne’s Belfield who brings size, physicality, and intelligence to the defensive end. He plays a strong, physical brand of defense, using his frame effectively to match up against bigger attackmen. Mills-Koonce is a very smart defender, showing good awareness and positioning in both settled and unsettled situations. He understands team concepts and makes sound decisions, allowing him to stay disciplined while playing with physicality. With his combination of strength and lacrosse IQ, he is a reliable and physical presence on the back end.