Chihuahua
14–16
lifespan (years)
1.5–3
weight (kg)
small
size class
How old is your Chihuahua?
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BASED ON AKC BREED DATA
About the Chihuahua
The Chihuahua is the smallest dog breed — a tiny, bold, intensely loyal companion. As the smallest breed, the Chihuahua ages the slowest and lives the longest of common dogs.
Caring for a Chihuahua
Dental care. Tiny mouths mean crowded teeth. Chihuahuas are very prone to dental disease — brush regularly.
Warmth and handling. A Chihuahua chills easily and is fragile. Keep it warm and supervise around children and big dogs.
Senior years. Chihuahuas often live well into their teens. Dental and heart care matter most as they age.
Chihuahua questions
How long do Chihuahuas live?
Chihuahuas typically live 14 to 16 years, and some reach their late teens.
Why do Chihuahuas live so long?
Small dogs age slowly. As the smallest breed, the Chihuahua has the longest typical lifespan of common dogs.
When is a Chihuahua a senior?
A Chihuahua is generally considered senior around age 10 to 11.
Lifespan data: American Kennel Club breed profile — akc.org/dog-breeds/chihuahua
Guides about aging in Chihuahuas
- How long do Chihuahuas live? Chihuahuas live 14 to 18 years on average, and the breed holds the record for oldest living dog more often than any other. Here is the story.
- Why do small dogs live longer than big dogs? Small dogs often outlive big dogs by years. Here is the simple reason why, and what it means for your dog.
- Dog life stages explained Puppy, adolescent, adult, senior. The four life stages of a dog and what each one needs.
- When Is a Chihuahua Full Grown? Chihuahuas are full grown at about 9 months, with most reaching adult size between 6 and 12 months. Growth chart by age, plus when they stop growing.
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