Summer festivals for New Castle County families
Festival season is the best of summer with kids — music, food, and somewhere to run around. This list is pulled straight from our live calendar, grouped by area, so it stays current. Dates and details are on each event's page.
The lineup isn't out yet.
We rebuild this list from live events, so it fills in as the season's dates are announced. In the meantime, the full calendar has everything that's on now.
Questions parents ask
When is festival season in Delaware?
Summer is the peak — roughly June through August — with community festivals, music in the parks, and food events most weekends. This list updates as new dates are announced.
Are summer festivals free?
Many are free to attend (look for the Free tag), though food and rides usually cost extra. Each event's page has the current details.
Get the good ones before they fill up
One countywide shortlist every Friday morning, with ages, cost and logistics on each pick. Free.
More guides
Dates refresh from each organizer’s listing twice a day.
Event dates come straight from our live calendar and refresh automatically. Last reviewed June 14, 2026. Confirm anything dated on the source before you go.