Is Dumpster Diving Legal in South Dakota? Trespass and Ordinances

Dumpster diving is legal in South Dakota in the sense that no state law bans the act itself, but whether a particular dive is legal depends on where the dumpster sits, who owns the land around it, and what the local city code says. The real exposure comes from the laws that attach to how you get to the trash and what you do with it: trespassing, theft, property damage, and in some cases identity theft.

When Discarded Items Count as Abandoned

The guiding principle comes from the U.S. Supreme Court’s 1988 decision in California v. Greenwood. The Court held that garbage left for collection outside the immediate area surrounding a home carries no reasonable expectation of privacy, because it is “readily accessible to animals, children, scavengers, snoops, and other members of the public.”¹ South Dakota courts have not carved out an exception, so trash set out in a publicly accessible spot for pickup is generally treated as abandoned.

The dividing line is between the public right-of-way and the property’s curtilage, meaning the area immediately surrounding a home or building that courts treat as an extension of the private space. Courts look at how close the area is to the structure, whether it sits inside a fence, how the space is used, and what the occupant did to shield it from view. A dumpster at the curb of a public street is in a very different legal position from one tucked behind a house or inside a gated commercial lot. Trash still inside the curtilage has not been surrendered to the public, and taking it can trigger trespassing or theft issues.

Trespassing Is Where Most Dives Go Wrong

Most dumpsters behind businesses, in apartment parking areas, or on residential lots sit on private property. The business does not need to be open, the owner does not need to be present, and the dumpster does not need to be locked for the law to apply.

Under South Dakota Codified Laws 22-35-6, you commit a Class 2 misdemeanor if you knowingly enter or remain on property where notice against trespassing has been given. Notice can come in three forms: someone directly tells you not to enter, signs are posted where trespassers would reasonably see them, or the property is surrounded by fencing a reasonable person would recognize as meant to keep people out.² A Class 2 misdemeanor carries up to 30 days in county jail, a fine up to $500, or both.³

If you are told to leave and refuse, the charge escalates to a Class 1 misdemeanor, with up to one year in jail and a fine up to $2,000.³ A separate statute, 22-35-5, covers entering or remaining inside a building or structure secretly, or entering a critical infrastructure facility without permission. That is a Class 1 misdemeanor from the start, with no warning required.⁴ A dumpster inside a warehouse, enclosed loading dock, or similar structure can bring this heavier charge into play.

A posted “No Trespassing” sign anywhere on the premises applies to the whole area, dumpster included.

City Ordinances Can Prohibit It Even When State Law Doesn’t

South Dakota municipalities regulate waste collection on their own, and a city rule can get you cited even when no state crime applies.

Sioux Falls makes it unlawful to remove articles or materials of any kind from the city’s rubble sites or sanitary landfills once they have been deposited there. Narrow exceptions exist for resource-recovery contracts, firewood cutting under safety rules, removal of finished compost, and donations of abandoned bicycles to nonprofits, but general scavenging is prohibited.⁵ The city also has separate provisions on littering and unlawful deposits of waste.⁶

Rapid City’s municipal code includes a section specifically titled “Scavenging” within its garbage and refuse chapter, alongside detailed collection rules for residential and commercial properties.⁷ Other South Dakota cities may have similar provisions. Before diving anywhere in the state, read the local code; many cities treat interference with waste collection as a citable offense, and scattered debris can add a littering penalty on top.

When Taking Items Becomes Theft

If a property owner can show the items had not actually been abandoned, say they were set aside for donation, staged for a move, or temporarily stored outside, taking them can support a theft charge. South Dakota defines theft as taking or exercising unauthorized control over someone else’s property with the intent to deprive them of it.⁸ Severity scales with value:

Property worth $400 or less: petty theft in the second degree, a Class 2 misdemeanor, up to 30 days in jail and a $500 fine.⁸
Property worth $401 to $1,000: petty theft in the first degree, a Class 1 misdemeanor, up to one year in jail and a $2,000 fine.
Property worth more than $1,000: grand theft, charged as a felony with potential state prison time.⁹

Prosecutors do not need to prove the item had significant resale value, only that it belonged to someone who had not given it up. Even a misdemeanor conviction creates a criminal record.

Documents and Identity Theft

Pulling papers out of a dumpster is where a petty dive can turn into a felony. South Dakota Codified Laws 22-40-8 makes it a Class 6 felony to obtain or possess another person’s identifying information without permission and with intent to deceive or defraud.¹⁰ “Identifying information” is defined broadly, covering Social Security numbers, driver’s license data, bank and credit card numbers, passwords, biometric data, and anything else that could be used to access someone’s financial resources.¹¹

A conviction carries up to two years in state prison and a $4,000 fine.⁹ Dumpsters near banks, medical offices, and any business that handles customer records carry the sharpest risk. Even without any plan to use the information, holding a stack of discarded documents with account numbers invites an investigation.

Breaking a Lock or Enclosure Is a Separate Charge

Cutting a lock, breaking a latch, or damaging a dumpster enclosure creates its own criminal charge for intentional damage to property under South Dakota Codified Laws 22-34-1. The classification turns on the dollar amount of damage: $400 or less is a Class 2 misdemeanor, $401 to $1,000 is a Class 1 misdemeanor, and damage above $1,000 enters felony territory.¹² This charge stacks on top of any trespassing or theft charge from the same incident, and it eliminates any argument that you reasonably believed the contents were abandoned.

Medical and Hazardous Waste

The HIPAA Privacy Rule applies to healthcare providers, not to divers, but it shapes what you might find and the trouble that follows. The U.S. Department of Health and Human Services says covered entities may not dispose of patient records, labeled prescription bottles, hospital ID bracelets, or electronic media containing health data in dumpsters accessible to the public unless the information has been rendered unreadable.¹³ When a facility fails to destroy records properly and you walk away with intact medical files, you are now holding information that can trigger an identity-theft investigation under state law. Stay clear of dumpsters at medical offices, pharmacies, and clinics. Dumpsters at industrial or automotive businesses can also hold hazardous materials regulated under the federal Resource Conservation and Recovery Act, carrying both legal and physical safety risks.

Found Items and Taxes

Under the IRS “treasure trove” regulation, found property counts as gross income in the year you take undisputed possession of it, to the extent of its value in U.S. currency.¹⁴ Enforcement on small finds is practically nonexistent, but anyone regularly salvaging items for resale is accumulating what the IRS treats as reportable income.

Practical Rules to Stay on the Right Side

Stick to trash set out at the curb or on a public right-of-way for collection. Once it leaves the curtilage, the expectation of privacy drops sharply.
Treat any “No Trespassing” sign, locked gate, or enclosure meant to keep people out as a hard stop, even if the dumpster lid is open.
Leave immediately if asked. Refusing turns a Class 2 misdemeanor into a Class 1 misdemeanor and raises the ceiling from 30 days to a year in jail.²
Never cut a lock or force open an enclosure. That alone is a separate crime and erases any abandonment argument.
Leave personal documents where they are. The identity-theft statute does not require you to actually commit fraud; possession with apparent intent is enough.
Read your city’s municipal code before you go. Rules vary across South Dakota, and some cities prohibit removing items from waste sites outright.
Clean up before you leave. Scattered trash draws complaints, and complaints bring enforcement.

1
Justia U.S. Supreme Court Center. California v. Greenwood
2
South Dakota Legislature. South Dakota Code 22-35 – Criminal Trespass
3
South Dakota Legislature. South Dakota Code 22-6 – Authorized Sentences and Differences in Classification
4
South Dakota Legislature. South Dakota Code 22-35-5 – Criminal Trespass
5
Sioux Falls Code of Ordinances. Sioux Falls Code of Ordinances – 57.051 Removal Restricted
6
Sioux Falls Code of Ordinances. Sioux Falls Code of Ordinances – Chapter 57 Garbage and Recycling
7
Rapid City Recycles. Rapid City Municipal Code Chapter 8.08 – Garbage and Refuse
8
South Dakota Legislature. South Dakota Code 22-30A – Theft
9
South Dakota Legislature. South Dakota Code 22-6-1 – Felony Classification and Penalties
10
South Dakota Legislature. South Dakota Code 22-40-8 – Identity Theft Felony
11
South Dakota Legislature. South Dakota Code 22-40 – Identity Crimes
12
South Dakota Legislature. South Dakota Code 22-34-1 – Intentional Damage to Property
13
U.S. Department of Health and Human Services (HHS.gov). May a Covered Entity Dispose of Protected Health Information in Dumpsters Accessible by the Public
14
eCFR. 26 CFR 1.61-14 – Miscellaneous Items of Gross Income