skip to main content
Raccoon
Most raccoon calls start the same way. Something is scratching and chirring in the attic or the chimney, usually in spring, and it is almost always a female that has moved in to raise a litter. The part that gets buried in most advice is the part that should come first. Raccoon is one of the wildlife species most frequently found with rabies in the United States, so this is not an animal to handle, corner, or crowd at any age or any time of year. There is a second, separate health risk that has nothing to do with rabies: raccoon roundworm, carried in the droppings, which is why a latrine on a roof or in an attic is its own hazard even when the animal looks perfectly healthy. Everything else, the exclusion work, the timing, the attractant cleanup, sits underneath those two facts.

Seasonal Timeline

Raccoon problems run on one clock almost everywhere. Females look for den sites in late winter and raise a single litter in spring, and that is when the noise in the attic, the chimney, and the soffit all arrive at once.

Peak, Midwest, Mountain West, Northeast, Pacific Northwest and SoutheastMar–May
Peak, California, South Central and SouthwestFeb–Apr
JanFebMarAprMayJunJulAugSepOctNovDec

Raccoon problems run on one clock almost everywhere. Females look for den sites in late winter and raise a single litter in spring, and…

There is only one seasonal driver here, and it is a simple one. Breeding happens mainly in February or March, gestation runs about 63 days, and most litters are born in April or May. Females start looking for a den weeks ahead of that, and an attic, a chimney flue, a soffit, or a space under a shed or porch is an entirely adequate substitute for a hollow tree. Every regional peak is that same event, shifted by climate. In California, the Southwest, and South Central, milder late winters pull the whole window about a month earlier than in the colder regions.

Two regional details are worth knowing if you are reading a calendar. In the Southeast, the denning window is sharper in the Carolinas than it is in the Deep South and Florida, where the season is less sharply defined and activity spreads across a flatter, longer stretch of the year. In the Mountain West and the Southwest, raccoons are not spread evenly across the map at all. Mountain West activity concentrates in lower-elevation river valleys and in the urban and suburban corridor along the Front Range rather than up in the mountains, and Southwest activity concentrates near urban water features, canals, and riparian corridors rather than out in the arid country between them.

Some late-breeding females, typically ones that lost a first litter, will not give birth until June, July, or August, so a summer discovery is not proof that whatever is up there has no young with it. Raccoons also do not truly hibernate. They hole up and go inactive during severe winter weather, for a day or two at a time in the South and for weeks or months at a stretch in the North, which is why a structure they moved into in March can stay occupied long after the noise stops.

Where They're Found

Raccoons occur throughout the United States, with the exception of higher mountain elevations and some areas of the arid Southwest, and they are more common in the wooded eastern regions than on the arid western plains. They prefer hardwood forest near water, but they also do well around farmsteads and livestock watering areas well away from any permanent natural water. Mild, wet climates support dense urban populations, and the Seattle and Portland metros carry raccoon densities comparable to any major American city.

Natural den sites include hollow trees, ground burrows, brush piles, muskrat houses, barns and abandoned buildings, dense cattail clumps, haystacks, rock crevices, and sewers. Around a house, the list gets shorter and more familiar: attics, chimneys, crawl spaces, and the space under sheds and porches. In urban and suburban areas, raccoons specifically learn that an uncapped chimney works as well as a hollow tree, and they use them heavily in spring.

Range is worth one footnote. Raccoons are not native to Alaska, and the only Alaska presence on record traces to fur-trade introductions in the 1940s and 1950s, eight animals released on one island off Prince of Wales Island that may still persist there and on a neighboring island, and a second release near Sitka that does not appear to have taken. That is a narrow historical curiosity, not an established population. Raccoons are not native to Hawaii either, where the occasional animal that turns up arrives as a stowaway and is treated as an invasive risk rather than a resident species.

Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia West Virginia Wisconsin Wyoming District of Columbia District of Columbia

HubSpot Contact Form Here (Inside Module)