Organic Materials 

About Composting and Organic Waste

On this page: Organic Waste Reports

Benefits of Composting

Nature’s ultimate recycling system where living or once-living materials break down into a rich soil-amendment called compost. Compost is a dark, crumbly, and an earthy-smelling form of decomposed organic matter.

  • Natural Process. Collecting organic materials and combining them to encourage their breakdown makes use of the natural process of decomposition to create a high-quality soil amendment.
  • Saves Money. Composting can be easier and cheaper than bagging organic wastes and having them removed. Your water bills may drop too, since a soil that’s well-amended with compost holds moisture better and reduces run-off.
  • Reduces Waste. Almost 20 percent of the waste stream in Boulder County is plant trimmings and fruit and vegetable scraps that could be recycled as home compost. Recycling organic resources extends the life of our landfills.
  • Valuable Soil Amendment. It is more cost-effective to keep materials on site and cycle them back into the yard as a rich soil amendment - compost.
  • Healthy Garden. Your garden will benefit as well. As the health of your soil improves so will the health of your plants.

Back Yard Composting

  • Back yard compost pile provides food for the compost critters (worms, bugs, fungi, bacteria, and other microorganisms) to break down. This food must be a balance of “green” (often wet) and “brown” (often dry materials).

Compost Bins

  • Compost bins can be purchased at retail locations and once a year at the annual compost bin sale sponsored by Boulder County Resource Conservation.

Compost Demonstration Gardens

  • Compost demonstration gardens have been designed to have a variety of composting units on display so Boulder County residents can see and experience the units before building or purchasing their own.

Compost Workshops

  • Compost workshops educate participants about backyard composting through interactive workshops. Tools and techniques for successful backyard composting are explained.

Worm Bin Composting

  • Worm bin composting is a good method for composting kitchen scraps if you live in the mountains, don't have a backyard or don't have space for a big bin.

Yard Waste and Food Scrap Drop-off

  • Yard waste and food scrap drop-off sites are offered by many local communities for their residents. Many of the sites offer free mulch and other compost materials to residents of the County or particular City.

Organic Waste Reports

Composting Capacity Analysis for Boulder County, October 2014

Compost Market Study for Boulder County. July 2012

Organic Waste Generation and Management Survey Report  for Boulder County, Colorado. October 2010

Organic Waste Management Feasibility Evaluation Report  for Boulder County, Colorado. October 2010


Resource Conservation Division

720-564-2227 (fax)
Resource Conservation Division


Boulder County Recycling Center
1901 63rd St.
Hours: 8 a.m.-4:30 p.m. M-F
Map & Directions

Mailing Address

1901 63rd St.
Boulder, CO 80301