For 2024-2025, WIAA Lacrosse welcomes 4 programs:

• Janesville Craig Boys Co-Op
• Janesville Craig Girls Co-Op
• La Crosse Central Boys Co-Op
• Muskego Boys

In addition, the WIAA approved the expansion of 4 existing co-ops and 1 new co-op request: 

• Franklin Girls is now a Co-Op including Greenfield
• Notre Dame Boys Co-Op added Freedom
• Notre Dame Girls Co-Op added Green Bay East and Green Bay West
• Oneida Nation Boys Co-Op added Green Bay East, Green Bay Preble and Green Bay West
• Wausau West Boys Co-Op added Mosinee