Opossums show up at your house for three basic reasons: easy food, accessible shelter, and water. They’re opportunistic omnivores that forage mostly at night, and a residential yard can offer everything they need without much effort. Understanding exactly what’s drawing them in is the first step toward making your property less appealing.
Food Is the Biggest Draw
More than anything else, opossums are following their noses to a meal. They have strong senses of smell and will investigate anything edible, which in a residential setting means a surprisingly long list of sources. The most common culprit is pet food left outdoors. A bowl of kibble on the porch is an open invitation, especially after dark when opossums are most active.
Unsecured garbage is another major attractant. Opossums won’t pass up the chance to rummage through tossed-out food scraps, and a trash can without a tight lid is easy pickings. Compost piles draw them in for the same reason. If you compost kitchen scraps, burying them under a thick layer of grass clippings or leaves can help mask the smell.
Fruit trees are an often-overlooked factor. Fallen fruit on the ground is a reliable food source, and opossums will return night after night to a yard that offers it. Bird feeders create a similar problem. Seed that spills onto the ground attracts not just opossums but other wildlife too. If you’re noticing opossums feeding under a bird feeder, you may need to pause feeding for a few weeks to break the pattern.
Beyond what you’re unintentionally serving, opossums are also attracted to yards with abundant natural prey. They regularly eat insects, snails, earthworms, small rodents, and carrion. A yard with a healthy bug population, a garden full of slugs, or even a dead animal nearby can pull them in. They’re true omnivores, eating seeds, fruit, amphibians, and small mammals alongside whatever human food they can find.
Shelter Under Decks, Porches, and Crawlspaces
Opossums are nomadic by nature. They rarely spend two consecutive nights in the same spot, instead wandering widely in search of food. But when they do settle temporarily, they look for dark, enclosed spaces that offer protection from predators and weather. Residential properties are full of these spots.
The most common shelter sites are the spaces under decks, porches, and sheds. These areas are dry, relatively warm, and undisturbed by people, which makes them ideal resting spots. Crawlspaces beneath houses are another frequent choice, especially if vents or access panels are damaged or left open. Attics, garages, and outbuildings also attract opossums, particularly in colder months when they seek warmth. Since opossums are better adapted to warm weather, winter pushes them toward heated structures like homes, garages, and sheds.
Woodpiles, brush piles, and dense overgrown vegetation offer natural hiding spots in your yard. Even a stack of lumber or an unused dog house can serve as a temporary den. The more cluttered and overgrown your yard, the more attractive it is to an opossum looking for a safe place to rest during the day.
Water Sources You Might Not Notice
Opossums naturally prefer habitats with reliable access to water, and your yard likely has more water sources than you realize. Pet water bowls left outside overnight are obvious ones. But birdbaths, decorative ponds, leaky outdoor faucets, and even puddles from poor drainage all provide what opossums need. Swimming pool areas with standing water on covers or decks can also draw them in. If you’re trying to make your yard less hospitable, eliminating standing water at night is just as important as removing food.
Why They Come at Night
Opossums are strictly nocturnal, with eyes well adapted to darkness. This means the attractants that matter most are the ones present after sundown. A bowl of dog food that sits on your porch all day isn’t a problem until the sun goes down and an opossum starts its nightly foraging route. The same goes for uncovered trash cans, compost bins, and fallen fruit.
They’re also most active during spring and summer, when food demands are highest and they’re wandering the widest distances. You’re more likely to encounter opossums during warmer months simply because they’re covering more ground. In winter, their activity decreases, but they may actually become more of a household nuisance because they’re actively seeking warm shelter rather than just passing through.
How to Make Your Property Less Attractive
Since opossums are drawn by food, shelter, and water, removing those three things is the most effective strategy. Here’s what actually works:
- Bring pet food inside at night. This single change eliminates one of the most common attractants.
- Secure garbage cans with tight-fitting or locking lids.
- Pick up fallen fruit from under trees regularly.
- Cover compost scraps with a thick layer of leaves or grass clippings to reduce odor.
- Pause bird feeding if you’re seeing opossums beneath feeders, or switch to feeders that minimize spillage.
- Remove standing water sources overnight, including pet bowls and birdbaths.
- Seal openings under decks, porches, and crawlspaces with hardware cloth or lattice. Check attic vents and garage doors for gaps.
- Clear brush piles and dense vegetation near the house to reduce daytime hiding spots.
The key is timing. Because opossums forage at night, the changes that matter most are the ones you make before dark. Bringing in pet food, securing trash, and removing water bowls each evening creates a yard with nothing to offer a wandering opossum. Over time, they’ll simply move on to easier territory.
A Note on Possums vs. Opossums
If you’re in North America, you’re dealing with the Virginia opossum, the continent’s only marsupial. If you’re in Australia or New Zealand, “possum” refers to a completely different group of animals, like the brushtail or ringtail possum. Australian possums are attracted to different food sources, including flower nectar and tree sap, and their behavior around homes differs significantly. The advice in this article applies to North American opossums, which are the species most commonly searching around garbage cans, pet food bowls, and crawlspaces.