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Who We Are

Mercer Island Little League (MILL) was chartered in 2006 and provides baseball, softball, and T-Ball programs for children who live and attend school on Mercer Island. Our league is part of Washington State District 9 Little League and is operated in conjunction with the Boys & Girls Club of King County, Mercer Island chapter.  We are grateful for the tremendous support that the schools, city, and region have provided in funding and maintaining the fields and facilities that we use on the island.

Mercer Island Little League serves the City of Mercer Island, Washington and is located in the middle of Lake Washington, between Seattle and Bellevue.

The Mercer Island Little League is run by a Board of Directors that is elected each year.  The League relies on sponsors to support the program and keep registration fees affordable for families on the island.  Learn more about sponsorship opportunities for the coming year. 

Games and practices typically run from March through the spring season and are held on fields and facilities throughout the Island.  Mercer Island Little League has a proud history of accomplishment in district and state All Star tournaments.  Our All Star teams compete after regular season and have remained competitive year after year. 


Mercer Island Little League is one of 14 local leagues in our district. Washington District 9 is one of 13 districts in Washington State Little League.  Washington State Little League is one of 11 states that roll up into the Little League Western Region, based in San Bernardino, CA.

Little League Baseball and Softball is the world’s largest organized youth sports program, with millions of players and more than one million adult volunteers in every U.S. state and more than 80 other countries. 

Play Ball!

We encourage you to learn about our various programs, divisions and developmental training programs. Most children are introduced to our sport through the very popular T-Ball & Sluggers programs, however we welcome beginner players at all of our softball and baseball levels.  

Little League develops leaders and team players.  Great friendships and memories are made on the ballfield. 

Join us for another FUN season! GO ISLANDERS!

Our Mission
Baseball Game

Our Mission

Our mission is to teach our developing athletes the values of Character, Teamwork and Sportsmanship through the great games of baseball and softball. 


Our Vision

Our goal is to provide a comprehensive program of baseball and softball for children of all skill levels and ability; to treat our players and their families in a fair and caring fashion; to reward for effort, improvement and striving to excel over winning; for outstanding coaching, instruction and player development; and most of all, for being a FUN and enjoyable program that our players, families and coaches want to participate in again next season. 

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