Recycling Center in Longmont: Hours, Holidays & Drop-Off List

Longmont Recycling Center Overview

When people search for Longmont recycling center, they usually mean the City of Longmont Recycling Center at 140 Martin St. The city also refers to the facility as the Waste Diversion Center. It is a resident-focused drop-off site, not a landfill and not a full hazardous-waste facility.

The most important detail is that different areas have different access rules. The cardboard and single-stream bins are available 24/7, while yard waste, food waste compost, Styrofoam drop-off and metal drop-off areas are only available Monday through Saturday from 8 AM to 4 PM. Sundays, holidays and unsafe severe-weather events can affect access.

Quick Facts Before You Drive

Longmont Recycling Center Hours and Drop-Off Areas

The Longmont Recycling Center has two practical schedules. Cardboard and single-stream recycling bins are listed as available 24/7. Other areas, including yard waste, food waste compost, Styrofoam drop-off and metal drop-off, are listed for Monday through Saturday from 8 AM to 4 PM.

2026 Holiday Closures and Severe Weather Notes

The Longmont Recycling Center is listed as closed on Sundays and specific holidays. It may also be closed for severe weather events that make access unsafe. If you are bringing a large load, yard waste, metal, Styrofoam or anything that requires the staffed areas, check the official page before driving.

Resident Proof, Fees and Who Can Use the Center

The official Longmont Recycling Center page asks users to bring a City of Longmont Trash & Recycle utility bill less than 6 months old and identification, printed or electronic, to show that they are a City of Longmont resident. This matters most for resident-only or resident-benefit areas and services.

Incorporated City of Longmont residents have free use of the Recycling Center’s tree limb drop-off for home branch and yard debris. Non-City of Longmont residents, landscapers, contractors and other hired service companies can dispose of yard waste and tree limbs for a fee. Fee amounts depend on vehicle and load type.

Accepted Items at Longmont Recycling Center

The official Longmont Recycling Center page lists accepted materials including yard waste, single-stream recyclables, holiday recycling, used automotive oil, used cooking oil, rechargeable and alkaline batteries, food scraps, white block Styrofoam, plastic bags and scrap metal. Keep each category separate and follow posted signs at the center.

Items Not Accepted at the Longmont Recycling Center

The Longmont Recycling Center does not accept household cleaners, solvents, pesticides, aerosol cans, paint and other chemical wastes. These are household hazardous waste items and need a different route.

Household Hazardous Waste, Paint and Chemicals Near Longmont

Longmont directs residents to household hazardous waste disposal programs for chemical materials. The year-round option is Boulder County’s Hazardous Materials Management Facility at 1901 63rd St, Boulder, CO 80301. Residential drop-off is listed Wednesday through Saturday, 8:30 AM to 4 PM, and is free of charge to Longmont residents with proof of Boulder County residency.

Longmont also lists an annual Household Hazardous Chemical Drop-Off Day for August 22, 2026, from 8 AM to noon at the Waste Services Center, 110 South Martin Street. The event is listed for Longmont residents only, requires current City of Longmont utility bill and ID, and does not accept commercial or business waste.

Yard Waste, Tree Limbs, Leaves, Grass and Mulch

Tree limbs, branches, bushes, leaves and small amounts of grass can be dropped off at the Longmont Recycling Center Monday through Saturday from 8 AM to 4 PM. The city asks residents to cut limbs and yard waste to manageable lengths and unload them in the designated area.

Do not include trash, plastic bags or lumber in the yard waste area. Yard debris is ground into mulch periodically, and the city says mulch may be available to residents free of charge. The city does not guarantee mulch quality or availability, and residents must load their own mulch.

Cardboard and Single-Stream Recycling in Longmont

The cardboard and single-stream drop-off bins are the only Longmont Recycling Center areas clearly listed as 24/7. This is useful when your curbside cart is full or you have more cardboard than your home bin can hold.

Flatten and fold bulky cardboard boxes. Do not use the drop-off bins for trash, food waste, hazardous waste, electronics or plastic bags unless a specific posted area accepts that material separately.

Used Oil, Cooking Oil, Batteries, Food Scraps and Scrap Metal

The Longmont Recycling Center accepts used automotive oil, cooking oil, rechargeable and alkaline batteries, food scraps, white block Styrofoam, plastic bags and scrap metal. Oils should be placed in containers no larger than one gallon, with a maximum of 5 gallons per visit.

For scrap metal, special rules can apply. Longmont hard-to-recycle guidance says items that are 50% or more metal may be accepted at certain programs, but refrigerators, freezers, air conditioners or other appliances containing Freon are not accepted at that event. Items that have gasoline or oil must be drained of all fluids.

Electronics and Hard-to-Recycle Items

Electronics are not listed as a routine Longmont Recycling Center drop-off category on the core Recycling Center page. For electronics, appliances, mattresses and other hard-to-recycle materials, use Longmont’s hard-to-recycle event guidance, Boulder County resources or approved local recycling providers.

Before recycling computers, phones, tablets, laptops or storage devices, remove personal data. Back up important files, sign out of accounts, remove memory cards, factory-reset devices when possible and keep passwords private.

Collection Schedule, Holiday Delays and Missed Pickup

If your question is not about drop-off but about weekly trash, recycling or compost pickup, use Longmont’s collection schedule page. Holiday weeks can delay collection by one day following the holiday, and carts should be at the curb before 7 AM on the scheduled collection day.

For missed pickup, the city holiday-closure page directs residents to call 303-651-8416. Residents can also use the Waste Services App for schedule reminders and notifications.

Senior-Friendly Checklist Before Visiting

1. Decide which area you need. Cardboard and single-stream bins are 24/7. Yard waste, food scraps, Styrofoam and metal are Monday-Saturday, 8 AM-4 PM.
2. Bring proof of residency. Carry a current City of Longmont Trash & Recycle utility bill and ID, printed or electronic.
3. Flatten cardboard at home. Flatten and fold bulky boxes before you arrive.
4. Keep categories separate. Separate cardboard, single-stream items, yard waste, oils, batteries, food scraps, Styrofoam, plastic bags and metal.
5. Do not bring paint or chemicals to normal drop-off. Use Boulder County HMMF or Longmont’s annual HHW event for household hazardous waste.
6. Check holidays and weather. The center is closed for listed holidays and may close for unsafe severe weather.
7. Call before loading unusual items. Use 303-651-8416 before bringing a large, confusing or hard-to-recycle item.

Official Longmont Recycling Links

Longmont Recycling Center Map and Directions

The map below points to 140 Martin St, Longmont, CO 80501. Use the map for driving directions, then use the official Longmont page for final hours, holiday closures, severe-weather closures, accepted items and resident proof rules.

Frequently Asked Questions About Longmont Recycling Center