Dumpster diving is when someone searches through trash bins or dumpsters to find usable items like food, clothes, or electronics. Some people do it out of need, while others enjoy it as a way to reduce waste or save money. But many people wonder—is dumpster diving legal in Colorado?
The answer is yes and no. It depends on where, how, and what you’re diving for. Let’s break down Colorado’s laws in simple words so you understand what’s allowed and what could get you into trouble.
Is Dumpster Diving Legal in Colorado?
In general, dumpster diving is not illegal in Colorado, but it must be done without breaking any other laws. That means you can’t:
Go through private property without permission
Break locks, fences, or bins
Ignore “No Trespassing” signs
Leave a mess behind or damage property
So, if a dumpster is on public property and not locked or marked with a warning, you may be legally allowed to search it. But if it’s inside a gated area, behind a store, or in someone’s backyard, that’s private property—and going there without permission is trespassing, which is illegal.
What Does the U.S. Supreme Court Say?
In 1988, the U.S. Supreme Court ruled (California v. Greenwood) that once trash is left outside for collection, it’s considered abandoned and no longer private property. That means law enforcement doesn’t need a warrant to search it—and technically, neither do you.
However, this ruling doesn’t override state or city laws, especially if the dumpster is on private land. So in Colorado, location matters.
Can You Get in Trouble for Dumpster Diving?
Yes, even if dumpster diving itself isn’t a crime, you can still get into trouble for:
Trespassing
Littering
Disturbing the peace
Stealing protected items (like mail, documents, or chemicals)
Going through fenced or locked areas
Some cities in Colorado—like Denver, Boulder, and Colorado Springs—have local ordinances that may restrict or ban dumpster diving in certain areas. For example, diving behind businesses or near schools could lead to fines or warnings.
Always check city rules before you dive.
Tips to Dumpster Dive Safely and Legally
If you decide to try dumpster diving in Colorado, follow these simple tips:
Avoid private property unless you have permission
Never break locks or climb fences
Look for dumpsters in public areas or alleys without warning signs
Wear gloves and protective clothing
Carry a flashlight for safety during night-time
Clean up after yourself and leave the area neat
Be respectful if someone asks you to leave
Some dumpster divers even call local stores to ask if they can collect old items. Many small shops or bakeries may agree, especially if you’re polite and explain your reason.
What Items Should You Avoid?
While dumpster diving can be useful, avoid picking up:
Expired or spoiled food
Medical waste or used syringes
Hazardous chemicals or batteries
Documents with personal or financial information
Anything marked as biohazard or private
Taking these items can cause health risks—or worse, legal trouble.
Dumpster diving in Colorado is not completely illegal, but it must be done responsibly and legally. As long as you stay off private property, avoid dangerous materials, and follow local city rules, you can safely and lawfully collect items from dumpsters.
Whether you’re trying to save money or reduce waste, always remember to be respectful of property, health, and safety laws.
