🐕 Medium · United States

Australian Shepherd: Size, Weight & Temperament

A strikingly marked, highly intelligent working dog with enormous exercise needs — despite its trendy status, not a beginner's dog.

! Experienced only
Australian Shepherd dog breed portrait
Photo: Martin Voss · CC BY-SA 3.0 · Wikimedia Commons
Weight male22–30 kg
Weight female16–25 kg
Shoulder height46–58 cm
Size classMedium (12–25 kg)
Fully grownat approx. 16 months
Life expectancy12–15 years
Activity levelVery high
OriginUnited States
ClassificationFCI Group 1 (Sheepdogs and Cattledogs)
Temperament & character

Despite its name, the Australian Shepherd (Aussie) is an American herding breed. It is eager to learn, affectionate with its own people, and reserved toward strangers. Its drive to work and protective instinct are both strongly developed.

Exercise & stimulation

The Aussie needs a great deal of exercise and intensive mental work — dog sports, tracking, trick training, or herding. Without a meaningful task, its urge to move and control can become a problem. As with the Border Collie, mental stimulation matters more than pure running.

Grooming

The medium-length coat, often merle-colored, has an undercoat and needs regular brushing; it sheds heavily during coat change. Merle-to-merle pairings should be avoided due to severe associated health defects.

Suitable for beginners?

Not well suited to beginners. Films and social media have turned the Aussie into a fashionable breed, but it frequently overwhelms inexperienced owners. It needs clear leadership, plenty of time, and a genuine job to do.

Health & common problems

Breed-typical conditions include the MDR1 gene defect (testing mandatory), hip/elbow dysplasia, inherited eye diseases (CEA, cataracts), and epilepsy. Merle carriers risk deafness and blindness if paired incorrectly.

Good with: Experienced, active owners with plenty of time

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This information is for general guidance and does not replace veterinary or breeder advice. Temperament and health vary individually within every breed.