Raccoon poop on a swing set or in a sandbox: what to do

The short answer

Bag the poop, then use heat. Heat kills raccoon roundworm eggs, and bleach does not. The CDC says "Most chemicals do not kill roundworm eggs; however, heat kills the eggs instantly"¹. The California Department of Public Health is blunter: bleach and other household disinfectants "will NOT kill roundworm eggs"⁴.

How you apply the heat depends on the surface:

• Concrete, brick and pavers: boiling water or a propane torch¹⁵.
• Wood and plastic: boiling water only. Never flame anything that can catch fire or melt⁵⁶.
• Soil and grass: take out the top 2 to 4 inches under the poop, then flame the ground and turn it⁴⁵.
• A sandbox: replace all the sand. Why is explained below.

If a child may have swallowed any, call a doctor the same day. Do not wait for symptoms. The CDC wants treatment started "ideally within three days"³.

What raccoon roundworm is, and why it is different

Raccoon roundworm is a worm called Baylisascaris procyonis that lives in a raccoon's gut⁴. One worm can lay more than 100,000 eggs a day, and a raccoon can pass millions of eggs in its poop every day⁵. The eggs are too small to see⁴.

People catch it by swallowing eggs². Inside the body, tiny worms hatch and travel. On rare occasions they reach the eyes, spinal cord or brain⁵. King County counts 25 serious cases in the US since 2003⁶. That is rare, but the damage can be permanent⁴. "Most infections are in children," says the CDC². In California, most were children from nine months to six years old, an age that puts almost anything in the mouth⁴.

A raccoon latrine is a spot raccoons use as a toilet again and again⁴. They like flat, raised places: decks, roofs, fence lines, logs and large rocks⁵⁶. A playset deck or a slide fits that list. So does a sandbox, and the CDC warns that raccoons "may use sandboxes as a latrine"¹.

Two clocks matter. The eggs are not infective when the raccoon passes them, and they take 2 to 4 weeks to ripen¹². California gives the same window as 14 to 28 days⁴. Once ripe, they "can survive in the soil for several years"⁵⁶. Compare that with cat poop, where the parasite ripens in 1 to 5 days, as cat poop in the sandbox sets out. Raccoon poop gives you more time to clean, and then it never goes away on its own.

Why bleach is the answer that will not die

Bleach is what most people reach for, and much sandbox advice mentions it. California explains what it really does: bleach "only loosens the 'glue' that holds the eggs in place, making it easier to wash them off a surface"⁴. It moves the eggs rather than killing them. A bleach rinse that runs off a deck into the grass has just spread them.

The same brochure does list bleach in its supplies, as 1 cup in a gallon of boiling water for rinsing shovels and boots⁴. The heat is doing the work there. That detail is probably how "use bleach" survives.

How to tell raccoon poop from other animals'

Raccoon droppings are tube shaped with blunt ends, about as wide as a dime or nickel⁵⁶. They are usually dark and often hold seeds or nut shells⁵⁶. Because raccoons come back, a latrine has "older, dry droppings mixed with fresh wet droppings"⁴. Old droppings can look like dried leaves or debris⁵.

A worked case: one playset, three surfaces

Take a wooden backyard playset with a plastic slide and a sandbox under the deck. Suppose you find droppings in three places one morning: on the deck boards, halfway down the slide, and in the sand.

First, set up. Keep children and pets away until you finish⁶. Put on disposable gloves and rubber boots you can scrub⁵. Mist the piles lightly with a spray bottle so you do not raise dust⁴⁵. Do not use a leaf blower or a shop vacuum, which "will blow the eggs and dust up into the air"⁶. The sheets add an N95 mask for tight spaces such as an attic or crawl space¹⁶.

The deck. Lift the droppings with a shovel or rigid scoop into a heavy plastic bag⁵. The boards are wood, which can catch fire, so no torch⁵. Pour boiling water over the spot, since the CDC names boiling water for "decks, patios, and other surfaces"¹.

The slide. Scoop the same way. A plastic slide can melt, so it is off limits for flame⁵⁶. Santa Barbara County says to treat "hard, smooth surfaces" with boiling water⁵. Where heat cannot be used, the fallback in the county sheets is hot soapy water and a damp sponge, rinsed often⁵⁶. That removes eggs without killing them, so bag the sponge when you are done.

The sandbox. The droppings came out with a scoop, but California warns that "Even after raccoon droppings are cleaned up, eggs still may be present"⁴. On the ground, health departments take out 2 to 4 inches of soil under a latrine and then flame what is left⁴⁵. You cannot flame sand inside a wooden or plastic frame, and a child digs through all of it. So empty the box, bag every scoop, clean the frame and the base, and refill with new sand. That is this page's reading of the soil rule, applied to a box.

Finish. Close each bag, put it in a second bag, and put it in the trash⁴. Make sure raccoons cannot get into the can⁵. The CDC also allows burning or burying the waste, or sending it to a landfill¹. Wash your clothes in hot water and detergent¹. Scrub your hands and under your nails with soap and warm water⁴⁵.

What to use on each surface

Each row restates a ruling made above, with its source.

A painted or powder coated swing frame is not on the list of things the sheets say can be flamed. They name concrete pads, bricks, and "metal shovels or garden implements"⁵⁶. Treat a coated frame like the slide and use boiling water. For wood chips under a playset, California's rule for a woodpile is to "dispose of the wood"⁴. Applied to chips, that means raking them out from under the latrine, bagging them, and topping up the depth.

Before you light a torch outdoors, call your local fire department. The CDC, Santa Barbara County and King County all say to check local rules first¹⁵⁶. A torch can start a fire, burn you, or damage the surface⁵. On soil, flame it, turn it over with a shovel, and flame it again several times⁴⁵.

If a child may have eaten some

Act the same day. The CDC says "If you suspect you may have ingested raccoon feces, seek immediate medical attention"². Its advice for doctors explains the hurry. Treatment "should be initiated as soon as possible after ingestion of infectious material, ideally within three days"³. The drug it prefers is albendazole, a worm medicine, at 25 to 50 mg per kg of body weight a day for 10 to 20 days³. Only a doctor can decide whether your child needs it.

Do not wait to see if your child gets sick, because symptoms usually start 1 to 4 weeks after the eggs are swallowed². By then the three day window has passed. The CDC's list of signs includes nausea, tiredness, loss of coordination, blindness and coma².

Tell the doctor where the poop was, how much your child touched, and whether it looked fresh or old. A first aid plan for the playset is in first aid and emergency response.

Keeping raccoons off the playset

A cover is the first fix. The CDC says to keep sandboxes covered when not in use¹. Cornell's school pest program adds that the cover has to be secured: with a loose tarp, "animals can easily slip under"⁷. It suggests a durable cover that comes off only for play, a solid bottom on the box so animals cannot dig in from below, and a "no food in the sandbox" rule⁷. Sandboxes covers cover styles, and a raised sand and water table is easier to close up.

Then take away what drew the raccoon. Keep pet food and trash where raccoons cannot reach them, and block shelter under decks⁵⁶. California adds skirting around decks and cutting back branches that hang over a roof⁴. Cleaning up a latrine helps, but on its own it will not keep raccoons from coming back⁵⁶.

Check the deck, slide and sand before play as part of your daily and weekly checks. Toys left out count too. California tells parents to keep children from playing with toys that have touched raccoon droppings⁴.

What this answer does not cover

No source here tested boiling water on a given slide or seat. If the maker of your playset says not to use very hot water on its plastic, follow the maker and use the sponge method instead. What each material can take is set out in materials: steel, wood and plastic. Torch rules are local, so the fire department call is not optional.

This page is about a backyard playset you control. On a public playground, do not clean it yourself. Keep children off and tell the operator. A latrine in an attic, a large one, or one you do not want to handle is a job for animal control, which the CDC suggests calling for help¹. A live raccoon that acts sick or will not leave is also a call to animal control, not something this page covers. Cat and dog poop carry different parasites with different timing, covered in insects and animals.

None of this is medical advice: it tells you when to call, and the doctor decides what comes next.

What to do next

Tonight, put a secured cover on the sandbox. If you found droppings today, clean them today. The CDC's point is to remove and destroy the poop before the eggs ripen². Use heat where the surface allows it, and replace the sand. Work out how many bags you need in how much sand do I need for a sandbox, and pick washed play sand using is play sand safe.

For everyday grime on the same equipment, cleaning and sanitizing covers what is safe where children put their hands. If a raccoon keeps coming back to the same playset, annual maintenance is a good time to close the gaps under the deck.