Town of Delavan Fireworks
1220 South Shore Drive
City/State/Zip: Delavan, Wisconsin 53115
County: Walworth County
Event Website: Click Here!
The event website page for this is a little confusing, so I may have it wrong, but it looks like the City of Delavan Fireworks are on the 4th and the Town of Delavan Fireworks are on the 25th of June so as not to run up against the other one.
Note: I am not affiliated with this event, I only list them; if you have a specific question, please use the contact information provided to get in touch with them directly