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Household hazardous waste in Barnstable, MA

Plain jugs and paint cans on a gravel lot beside a Cape Cod transfer station building with orange cones

The 2026 season and 2027

The county's town list for Barnstable shows four Saturday collections, 9 a.m. to noon: April 4, June 27, August 29 and September 26, 2026. All were held at the Barnstable Transfer Station, 45 Flint Street, Marstons Mills. The county page says the 2026 collection season has ended and the 2027 schedule will be posted in spring 2027. As of our November 2026 check, no 2027 dates exist. Do not plan around a date until the county posts it.

Questions go to the county program at 1-800-319-2783 or anthony.gerace@capecod.gov. The Barnstable listing and card do not state a residency rule or a fee. Ask before you bring items from a rental or second home.

What is accepted and what is refused

The county list of accepted items includes oil-based paints, stains, varnishes, wood finishes and paint thinners, lawn and garden chemicals, cleaners such as drain and oven cleaner, pool and hot tub chemicals, gasoline and brake fluid, mercury devices and lithium batteries. The county does not accept vehicle or household batteries, propane tanks, fire extinguishers, smoke and carbon monoxide detectors and whole fluorescent tubes, and the Barnstable card adds medical waste and sharps.

Latex paint is separate. The county says latex paint is not hazardous waste, and the Barnstable Transfer Station page says dried latex paint can go in regular household trash: mix in clay-based cat litter until you can't stir, then bag it. Liquid latex cannot go in the trash.

Other options all year

Sharps must be in an approved sharps container and go to a fire station, not the trash. The DPW lists Hyannis, Centerville, Cotuit and West Barnstable stations as drop-off sites; the Hyannis station at 95 High School Road Ext. takes them Monday to Friday, 9 a.m. to 5 p.m.; West Barnstable at 2160 Meetinghouse Way is listed as 24/7.

A hazardous-waste pile is not part of a junk pickup, and JUNKRUN does not haul it. Propane tanks have a gate fee at the Transfer Station ($5 for 20 pounds). Car batteries and waste oil are free with a permit. The county also has a form for people who miss an event, but the one posted is for 2026.

Barnstable household hazardous waste, 2026 and 2027

  1. Saturday, April 4, 2026

    Collection, 9 a.m. to noon (past)

  2. Saturday, June 27, 2026

    Collection, 9 a.m. to noon (past). The Swap Shop was closed that day.

  3. Saturday, August 29, 2026

    Collection, 9 a.m. to noon (past)

  4. Saturday, September 26, 2026

    Collection, 9 a.m. to noon (past)

  5. Spring 2027

    The county says the 2027 schedule and town brochures will be posted.

Local resources in Barnstable

Donation, reuse and recycling options near the pickup. We are not affiliated with these; confirm hours and what they accept before you go.

Quick answers

When is the next hazardous waste day in Barnstable?

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Not yet posted. The county says the 2027 schedule will go up in spring 2027. The 2026 events ran April 4, June 27, August 29 and September 26.

Where is Barnstable hazardous waste collection?

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At the Transfer Station, 45 Flint Street, Marstons Mills, 9 a.m. to noon on the Saturdays listed.

Can I throw latex paint in the trash?

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Only when dry. Barnstable's Solid Waste page says to mix it with clay cat litter until it cannot be stirred, then bag it.

Who do I call about a missed collection or a small business?

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Barnstable County's program is at 1-800-319-2783. The DPW page lists a small-business line of 774-487-8802 and says to register two weeks ahead.

Sources

Rules, fees and hours change, so confirm with Barnstable before you go.

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