How important are leadership positions on college applications?

Agree with intparent. And Cal Newport is an amazing resource. Don’t think about ‘leadership’ in the conventional way. Think about the activities you love and how you can apply your creativity, insight, analytical skills and commitment…if you are a rock climber, how do you demonstrate your expertise? What’s the most challenging climb you’ve done? What made it challenging? If you are a boxer, what’s the toughest thing you had to learn? If you are an artist or a gardener or a musician, what makes you a good one? If you play a sport, you can be a leader without being a team captain, just be being the person who keeps the team’s morale high during a losing streak or making sure the newbies feel welcome or helping someone whose skills are a bit weak so they don’t quit. "Leadership’ in the conventional sense of ‘president’ of some school club is simply over-rated as a ‘get into college’ requirement.