Dog vs Cat: Which Pet Is Right for You?

Side by side

Cost: the ASPCA's 2021 estimate puts annual care at about $1,391 for a dog and $1,149 for a cat, and the first year, with spay or neuter, vaccines, gear and training, at about $3,221 and $1,904. Vet bills: the AVMA's 2026 figures show households spending an average of $595 a year on veterinary care for dogs and $426 for cats. Popularity: 43.7% of U.S. households own a dog and 34.1% own a cat, according to the AVMA.

Exercise: dogs need daily exercise, with needs that vary by breed, age and health; cats need play but no walks. Training: dogs need housetraining, leash manners and basic obedience; most cats learn the litter box quickly. Grooming: both need regular brushing, and dogs need occasional baths while most cats rarely do. Time alone: cats generally cope better. Best for: dogs suit active people with time at home; cats suit busier households and smaller spaces.

Cost: where the money goes

In the ASPCA's breakdown, a dog costs more in almost every line: food at about $300 a year against $225, routine medical care at $225 against $160, and preventive medication for heartworm, fleas and ticks at $185 against $140. A cat adds litter at roughly $150 a year, which a dog does not need. Pet health insurance, if you buy it, was estimated at $516 a year for a dog and $348 for a cat.

The one-time costs widen the gap. The ASPCA put spay or neuter at about $300 for a dog and $150 for a cat, and lists a crate and training classes for the dog that a cat does not need. Size matters too: a 90-pound dog eats more and costs more at the vet than a 15-pound one. Treat these as 2021 averages; prices vary by region and have risen since.

Time, exercise and being left alone

The ASPCA notes that dogs need exercise to burn calories, stimulate their minds and avoid the boredom that leads to destructive behavior, and that the amount varies with breed, sex, age and health. In practice that means walks every day in all weather, plus play and training. Many dogs struggle when left alone for a full workday and need a dog walker, daycare or a midday visit home.

Cats are more self-sufficient day to day, but they are not ornaments. They need daily play to stay fit and engaged, a scratching post, and a litter box that the ASPCA says should be scooped at least once a day and fully cleaned at least weekly. Cats left alone for long stretches still need someone to check on them, feed them and clean the box.

Training and daily routine

A puppy needs housetraining, crate training, leash skills and socialization, and an adult dog still benefits from regular positive training. The ASPCA also lists daily flea and tick checks in warm weather, licensing in most communities and a feeding schedule that drops from four meals a day for young puppies to one or two for adults.

Cats need less formal training. Most use a litter box with little teaching, and good habits like using a scratching post instead of the couch come from offering the right options. The ASPCA recommends keeping cats indoors, noting that outdoor cats do not live as long and face cars, fights, coyotes and disease. Nails need trimming every two to three weeks.

Space, allergies and family life

Cats suit apartments well, since an indoor cat needs vertical space and a few quiet spots more than square footage. Dogs vary: a small, calm breed can do fine in an apartment with daily walks, while a high-energy herding or sporting dog usually needs a yard and far more activity. Check lease rules first, because many rentals limit dogs by size or breed.

Both can be great with children when introduced carefully and supervised, and both can trigger allergies. Spend time with the type of animal you are considering before committing. If you already have one, a dog and a cat can live together, especially when one is young, though some dogs with a strong prey drive are never safe around cats. Our guide on how to introduce a cat to a dog walks through it.

How to decide

Choose a dog if you are home a good part of the day or can arrange care, enjoy being outdoors, and want a companion for walks, hikes and errands who thrives on routine and training. Choose a cat if you work long hours, live in a smaller space, want lower costs and less daily care, and like an affectionate companion that is happy to keep its own schedule.

Whichever you choose, budget for a vet visit within the first week or two, vaccinations, parasite prevention and spaying or neutering, and set aside money for emergencies. Adopting from a shelter lets staff match you with an individual animal whose energy and personality fit your home, and your vet can help you plan the first year of care.

This page is general information, not veterinary advice, and it cannot replace an examination by the vet who knows your pet.