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, soonest first, 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
Free, one email a week — the weekend's best picks for New Castle County families, tailored to your kids' ages.
More guides
Checked against each place’s current info.
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.