The Delavan Lake Improvement Association was founded in 1895 and organized with this purpose: to help protect and preserve the lake and all land around it; to represent those who own its property, and to provide a wholesome and relaxing environment for our friends and visitors. Since then, the DLIA has maintained the primary focus of a ‘watchdog’ role, seeking to identify potential and existing issues that affect water quality and the long-term health of the lake. Additionally, it is our Association’s goal to forge strong ties with agencies such as the Wisconsin DNR, the U.S. Geological Survey, governing bodies at the State, County & Local levels, and other local & regional Lake Associations & Conservancies to help ensure timely attention to the condition and the needs of Delavan Lake.

We would welcome your participation and support as a member of the DLIA.

Membership Application



Summer Address: 

Summer Telephone Number:

Off-Season Address: 

Off-Season Telephone  Number:

Email address:

Membership Levels: Your Membership Dues Are Now Tax Deductible!

   Patron - $100 per year (Carried by those members who wish to lend greater support to the work being  done by the DLIA)

   Sustaining - $50 per year 

   Regular - $30 per year 

   First Time Member - $15 first year 

(Fall, Winter & Spring if different than Summer) 
To Pay By Mail: Please click on the Membership Application Form link below to print the form and mail your check.
DLIA Annual Membership
Make a tax deductible donation to help us help the lake! 

Our current focus is the crop cover program. This program keeps the lake clean by providing local farmers small compensation support to remove run-off land from cultivation. Less run off results in less sedimentation and farm fertilizer entering the lake!
NEW DLIA POLICY: Newsletters & Lake Alerts will be sent by email due to the cost of mailings. If you want to receive DLIA communications,  be sure to include your email in the contact information. The DLIA does not sell or distribute emails. Emails are strictly used for DLIA communications.