Trunk or Treat - Mercer County Park is a trunk-or-treat at Mercer County Park - Festival Grounds in Hamilton Square, NJ, on Friday, October 23 from 5 PM to 7:30 PM. That's one week before Halloween. Costumes are part of the fun. It is listed as family-friendly.
Date & Time
Friday, October 23 · 5 PM – 7:30 PM
UTC-04:00
Location
Mercer County Park - Festival Grounds | Hamilton Square, NJ
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Know before you go
When
Friday, October 23, 2026, 5 PM to 7:30 PM (one week before Halloween)
Where
Mercer County Park - Festival Grounds, Mercer County Boathouse Marina, Robbinsville, NJ 08691, United States, Hamilton Square
Length
About 2.5 hours
Ages
Family-friendly
Type
Trunk or Treat
Dress code
Costumes encouraged
Details
Get ready for a spooktacular evening of family fun at Mercer County Park! Join the Mercer County Park Commission for Trunk or Treat, a safe and festive night filled with candy, costumes, and creativity! Families can make their way through the festival grounds, collecting tasty treats from decorated trunks, then stick around for pumpkin painting, hayrides, games, music, vendors, and more! Location: Mercer County Park Festival Grounds, 1638 Old Trenton Rd, West Windsor NJ Date & Time: Friday, October 23 from 5:00 - 7:30 PM This event is free and no registration is required! Trunk Participation: Thank you for those who reached out to volunteer! We are not taking volunteers from the public at this time. All families are welcome and can't wait to see you there! Costumes are encouraged, so come dressed in your Halloween best and join us for a night of fall fun for the whole family!
Event Location
Mercer County Park - Festival Grounds, Mercer County Boathouse Marina, Robbinsville, NJ 08691, United States, Hamilton Square