Household hazardous waste drop-off in Mercer County, New Jersey
Household hazardous waste programs that list Mercer County, from county utilities authority, improvement authority and county government pages and flyers. Most programs serve only their own residents, so check “who can use it” on each listing.
No drop-off site or upcoming collection event is listed for Mercer County right now. Call Mercer County at 609-278-8086 for the next collection date.
Call ahead. Hours, limits and accepted items change. Confirm with the program before you go.
Last checked Thu, Oct 22, 2026. Each listing links to its own page with the official sources and the date we checked it. How we check · Report a correction.