How Long Do Opossums Live? Lifespan and Habits

If you are dealing with an opossum in the yard, under the deck, or nosing around the trash, the first thing you want to know is how long opossums live, because that affects how urgent the problem is and how long you may be dealing with them. In the wild, their lives are short, and that matters for removal planning, because a single animal can still create a lot of mess, odor, and damage before it moves on. The right exclusion work can stop repeat visits without turning a short-term nuisance into a long-term one.

How long opossums live in the wild

Wild opossums live about 1 to 2 years. A few reach 3 years, but that is not the norm. Road traffic, predators, disease, starvation, and cold weather all cut their life span of opossums down fast. That short lifespan does not mean they are harmless, because an adult opossum can still breed, den under structures, and return night after night to food sources like pet bowls, compost, and unsecured trash.

For homeowners, the key point is this, a short life does not equal a short problem. A female can raise a litter, and young animals can scatter into sheds, crawl spaces, and deck voids before you notice them. If you see repeated droppings, dug-out bedding, or a musty den smell, treat it as an active entry problem, not a one-time visit.

How long do opossums live in captivity

In captivity, opossums live longer than they do outdoors because they do not face traffic, predators, or food shortages. With proper care, they can live 3 to 4 years, and some live longer in wildlife facilities or controlled settings. That answer is different from what most homeowners see because pet or rehab conditions remove the stress that kills wild opossums early.

This matters for removal and exclusion because a trapped or confined opossum can stay in an attic, shed, or under-deck void long enough to cause real damage. If one cannot leave, it will keep foraging, nesting, and leaving urine and feces in the same area. When you are sealing access points, assume the animal needs a clear way out first, then close the space after it is empty.

How long are opossums, and why size matters for exclusion

Adult opossums are about 24 to 40 inches long from nose to tail, with the tail making up nearly half that length. Body length alone is closer to 15 to 20 inches, but the tail matters when you are checking gaps, because an animal that looks bulky can still fit through a surprisingly small opening. Their flexible shoulders and narrow head help them squeeze into spaces under decks, behind steps, and through broken vent screens.

For exclusion work, size is the reason a loose crawl-space panel or a gap at the base of a deck board is enough. If the opening is big enough for the opossum’s head, the body may follow. Focus on sealing the lowest and widest access points first, then close secondary gaps around utility penetrations, lattice, and damaged trim.

What the life span tells you about removal

The short life span of opossums changes how you approach control. You do not need a long-term population plan for one animal that wandered in, but you do need fast exclusion and sanitation if it has found shelter. If food and cover stay available, another opossum can move in after the first leaves. That is why cleanup and sealing matter as much as removal.

Do not rely on waiting it out. A sick, old, or injured opossum can still stay hidden in a void and create odor, fleas, and droppings. If you find a den under a deck or in a shed, work from the outside first, cut off easy food, and then deny re-entry. The goal is to make the structure unappealing before the next animal discovers it.

How to keep opossums out of homes, yards, and under decks

Start with food control, because opossums move where meals are easy. Store trash in lidded cans, bring pet food indoors at night, feed pets inside, and pick up fallen fruit from trees. If you have bird feeders, clean spilled seed every evening. These are the fastest changes that stop repeat visits to porches, patios, and foundations.

Next, block access to den sites. Use 1/4 inch hardware cloth for vents and openings, not light screen. Fasten it with screws and washers, and bury it at the base of exposed deck skirting or close the bottom edge so the animal cannot lift it. Under decks, close gaps with solid lattice backed by hardware cloth, and repair warped boards, loose fascia, and broken crawl-space covers.

Remove night food sources, including pet dishes, grease drips, and unsecured trash.

Inspect the foundation, deck perimeter, shed corners, and crawl-space vents.
Seal openings larger than 2 inches with hardware cloth, metal flashing, or repair boards.
Set a one-way exclusion device only after you know the animal has a clear exit path.

Clean the area after it leaves, then close the opening permanently.

Signs an opossum is active near your home

Fresh droppings, disturbed insulation, overturned trash, and torn-up mulch point to active opossums. You may also see a slow shuffle at dusk, hear movement under a deck, or notice a strong musky odor near a den. In yards, they leave narrow paths through grass and low shrubs as they travel between food and shelter. If a pet keeps barking at one spot, check that area first.

Do not confuse a one-night visit with a settled den. If the signs repeat in the same place, treat it as a nesting or feeding site. Check the area after dark with a flashlight from a distance, and look for movement, not just tracks. Once you confirm activity, remove attractants and seal the access point after the animal is out.

Frequently Asked Questions

How long do opossums live compared with other backyard animals?

Opossums live far less time than raccoons, foxes, or skunks. In the wild, their 1 to 2 year life span is short because they face more hazards and have a lower survival rate. That short life does not reduce the need for exclusion, because one opossum can still den under a deck, damage insulation, and leave behind waste that attracts flies and other pests.

What is the best time to remove an opossum from a yard?

Night is the best time to check for activity, because opossums are nocturnal. If you are sealing an opening, do the work after you know the animal has left for the night and before it returns before dawn. Remove food sources immediately, then close off the den site once it is empty.

How long do baby opossums stay with the mother?

Baby opossums stay in the pouch for about 2 months, then ride on the mother’s back before becoming independent at about 3 to 4 months. If you find a mother around a den site, expect young nearby. Do not seal an opening until you are sure no babies are trapped inside, because that creates a bigger wildlife problem and a strong odor issue.

Do opossums return to the same place?

Yes, if the area offers food and shelter, they return. A deck void, open shed, or easy trash source can bring the same animal back night after night, and can attract others after it leaves. The fix is straightforward, remove the reward and close the entry point with durable materials, not temporary patching.