Yes, you can bury your dog in your yard in Illinois, provided the grave meets the state’s rules on depth, distance from water and neighbors, and materials — and provided your city or village doesn’t impose stricter requirements of its own. The rules come from the Animal Mortality Act (225 ILCS 610) and its implementing regulations at Title 8, Section 90.110 of the Illinois Administrative Code. Getting the details wrong is a criminal offense, and one piece of common folk advice — adding lime to the grave — is specifically prohibited.
How Deep the Grave Has to Be
The state’s minimum is more modest than most people expect. The administrative code requires “at least a 6 inch compacted soil cover over the uppermost part of the carcass.”1Legal Information Institute. Illinois Administrative Code tit. 8, 90.110 – On-Site Disposal Six inches of firmly packed earth above the highest point of the remains satisfies the letter of the rule.
In practice, six inches is not enough. The same code section requires you to “take precautions necessary to prevent any disturbance by animal or mechanical means,” and a shallow grave invites scavengers. Two to three feet is a practical depth that satisfies both requirements. You also have to control erosion at the site, and the Department of Agriculture can inspect the location during normal working hours.
One material rule catches almost everyone off guard: lime and other chemical agents are prohibited. The code states plainly that “lime or other chemical agent shall not be used to prevent decomposition.”1Legal Information Institute. Illinois Administrative Code tit. 8, 90.110 – On-Site Disposal If you have read online that lime speeds up decomposition or masks odor, ignore it. Using lime in Illinois puts you in violation.
Skip plastic bags and synthetic wraps too. Use only biodegradable materials if you wrap the remains at all, because plastic doesn’t break down and can channel leachate toward groundwater.
How Far From Water, Wells, and Neighbors
The distance rules are hard minimums, and on a small lot they often decide the question by themselves.
- At least 200 feet from any stream, private drinking water well, or other drinkable water source.
- At least 200 or 400 feet from a community water supply well, depending on the setback zone the Illinois Environmental Protection Act establishes for that well.
- At least 200 feet from any existing residence that you do not own or occupy.1Legal Information Institute. Illinois Administrative Code tit. 8, 90.110 – On-Site Disposal
Measure the neighbor buffer from the closest edge of the burial site to the neighbor’s house, not to the property line. On a typical suburban lot, this rule alone can make backyard burial impossible. Also stay away from drainage ditches and any low-lying spot where water pools after rain, even if it isn’t formally a stream.
Your Local Ordinance May Be Stricter
Illinois municipalities can add their own requirements on top of the state rules, and some do. East Moline, for example, requires pet burials on private property at a minimum depth of three feet — six times the state’s soil cover requirement — and requires the burial to occur within twelve hours of death. East Moline also prohibits burying animals on public property.2East Moline Code of Ordinances. East Moline Code 6-5-10 – Burial of Dead Animals
Chicago’s municipal code has its own provisions on the burial of dead animals and their associated penalties.3Municipal Code of Chicago. Municipal Code of Chicago – Chapter 7-12 Before you dig anywhere in Illinois, call your city clerk or local health department and ask whether extra depth, timing, or outright prohibition applies where you live. Enforcement of local rules generally comes through code enforcement or the health department rather than the state.
What Noncompliance Costs
Knowingly violating the Animal Mortality Act or any rule under it is a Class C misdemeanor in Illinois, and each day the violation continues counts as a separate offense.4Illinois General Assembly. Illinois Compiled Statutes 225 ILCS 610 – Animal Mortality Act A Class C misdemeanor carries up to 30 days in jail and a fine of up to $1,500. Because each day is chargeable separately, an out-of-compliance grave that sits for a week could in theory produce seven charges.
If the violator is a corporation or partnership — a rescue, a boarding operation, a farm run through a business entity — any officer, director, manager, or managerial agent who caused or allowed the violation is individually guilty of the same misdemeanor.4Illinois General Assembly. Illinois Compiled Statutes 225 ILCS 610 – Animal Mortality Act
If Your Dog Was Euthanized, Bury Deeper
Euthanasia changes the calculation. Sodium pentobarbital, the drug most commonly used to euthanize pets, stays in the animal’s tissues essentially unchanged after death. It remains toxic to any scavenger that digs up and feeds on the remains, and it persists long after burial.5American Veterinary Medical Association. Euthanatized Animals Can Poison Wildlife: Veterinarians Receive Fines
The wildlife damage is documented. Between 1986 and 2001, the National Wildlife Health Center linked 34 eagle deaths to pentobarbital from improperly disposed animals. In one British Columbia case, 26 bald eagles became ill and five died after feeding on a single euthanized cow.5American Veterinary Medical Association. Euthanatized Animals Can Poison Wildlife: Veterinarians Receive Fines Shallow graves are the main vector.
For a euthanized pet, the state’s six-inch minimum is not enough. Bury at three to five feet, choose level or slightly elevated ground away from flood-prone areas, and ask your veterinarian about placing the remains in a leak-proof container to keep pentobarbital from leaching into soil and groundwater.
If You Can’t Meet the Rules, Consider These Options
On small lots where the 200-foot neighbor setback rules out backyard burial, or when you’d rather not deal with the depth and inspection requirements, Illinois recognizes several alternatives.
Cremation
Illinois regulates pet cremation under the Companion Animal Cremation Act (815 ILCS 318). Providers must give you a written explanation of services before you commit, and if you pay for an individual cremation with remains returned, the provider must certify in writing that the returned remains are your pet’s. Communal cremation, where animals are cremated together and remains are not returned, is the least expensive option; individual cremation costs more.
Alkaline Hydrolysis
Alkaline hydrolysis, sometimes marketed as “aquamation” or water cremation, is legal in Illinois. It uses heated water, pressure, and an alkaline solution over four to six hours, produces no direct emissions, and uses less energy than flame cremation. Availability for pets has been growing, though it isn’t offered everywhere.
Pet Cemeteries
A licensed pet cemetery handles depth, distance, and location compliance for you. Plot costs vary from around $100 to several thousand dollars depending on the facility and whether you want a permanent marker. If you want a dedicated gravesite but can’t meet the state’s rules on your own land, a pet cemetery is the simplest path.
One last note on disposal by burning: open fires are not an option. Any disposal by burning has to use an incinerator that meets the Environmental Protection Act’s air pollution standards.6Illinois General Assembly. Illinois Administrative Code Section 90.110 – On-Site Disposal