Diamond Lake Association

Diamond Lake, Michigan

Diamond Lake is located in southwest lower Michigan, in nearly the center of Cass County. It is situated southeast of the village, and county seat, Cassopolis. Four different townships intersect in its waters; Calvin, Jefferson, LaGrange, and Penn.

Give. Lake. Love

The Diamond Lake Association works with Lake residents to build up the community, oversee Lake health, and ensure a thriving and healthy Lake for years to come.

Diamond Lake Events

The Diamond Lake Association sponsors and hosts a number of fun, family friendly events on and around the Lake.

Read Diamond Lake News & Updates

“Diamond Lake is a sanctuary of rest, peace and solitude with an occasional sprinkle of riotous laughter. A happy place where people you don't know smile, wave and wish you well.”

—W.B.

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🌿 We're dedicated to keeping our lake pristine through: 🔹 Regular water quality monitoring 🔹 Invasive species management 🔹 Conservation initiatives 🔹 Environmental protection Your membership helps preserve Diamond Lake for generations to come!
💠 Happy Thanksgiving from all of us at the Diamond Lake Association! #DiamondLake #Thanksgiving #DiamondLakeAssociation #DLA #Cassopolis
🌿 Did you know? Invasive Species Alert: Hydrilla This aggressive invader: ⇒ Grows up to 30 feet long ⇒ Forms dense mats near water surface ⇒ Shades out native vegetation ⇒ Alters lake ecology ⇒ Interferes with boating and