Australian Shepherd Size: A Comprehensive Guide

australian shepherd size

Did you know male Australian Shepherds can reach up to 23 inches in height and weigh up to 70 pounds? This shows the great size these medium dogs can grow to. It’s important to know about their size and growth. This helps whether you’re thinking of getting one or already love the breed. Knowing their typical size can help you plan for space and how much exercise they need.

Males usually are on the larger side, being 20-23 inches tall and weighing 55-70 pounds. Females are a bit smaller, standing 18-21 inches tall and weighing 40-55 pounds. These size differences matter for their living space and exercise. But remember, each dog is unique because of genetics and how they live.

Key Takeaways

  • Average male Australian Shepherds stand 20-23 inches and weigh 55-70 pounds.
  • Female Australian Shepherds are typically 18-21 inches tall and weigh 40-55 pounds.
  • Puppies reach their full adult size between 12-16 months of age.
  • Australian Shepherds require 1-2 hours of daily exercise to stay healthy.
  • Genetics and lifestyle influence the final size and weight of each Aussie.

Understanding the Australian Shepherd Breed

Australian Shepherds, or Aussies, are very popular. They have a rich history and unique features. These aspects make them suited for roles ranging from family pets to herding animals. Let’s explore the interesting history of Australian Shepherds. We’ll also look at their key characteristics and traits that make them special.

Origin and History

The Australian Shepherd was actually developed in the western U.S. during the 19th century, not Australia. They come from European herding dogs brought over by Basque and Spanish shepherds. These dogs were first bred to help herd livestock. This herding skill is still a big part of their role today. In the mid-20th century, Jay Sisler made the breed famous through rodeos and Disney movies. Since being recognized by the AKC in 1993, the breed has become well known for its agility, intelligence, and herding abilities.

Breed Characteristics

Aussies are medium-sized, strong dogs with a distinctive bob-tail. Their coat can be blue merle, black, red merle, red, with beautiful white and copper markings. A unique feature is heterochromia, meaning an Aussie can have two differently colored eyes. This trait is highly prized. Males typically stand 20 to 23 inches tall, while females are slightly shorter. There are also miniature Aussies that are under 18 inches tall and weigh 20 to 40 pounds. Aussies live for about 12 to 15 years.

Australian shepherd history

Common Traits and Temperament

Australian Shepherds are smart, adaptable, and full of energy. They do well in obedience trials, police work, and as family pets. They are sensitive to loud noises and quick movements. This shows they’re very aware of their environment. They need at least 40 minutes of exercise every day. This keeps them healthy and content. They’re also very loyal and friendly, perfect for active families. Aussies need moderate grooming and enjoy being social. This fits well with their lively and engaging nature.

Average Size and Weight of Australian Shepherds

The Australian Shepherd is known for its boundless energy and friendly nature. There are size differences between males and females. Understanding these differences can help you choose the right pet.

Male vs. Female Size Differences

Males are generally taller and heavier than females. Male Australian Shepherds are usually 20 to 23 inches tall. Females measure about 18 to 21 inches. Males weigh between 50-65 pounds, and females weigh about 40-55 pounds.

Typical Weight Ranges

Size varies with growth stages. At six months, males weigh 40-46 pounds, and females weigh 30-35 pounds. Australian Shepherds usually reach their full size by 16 months. Here’s a closer look at their sizes:

Australian shepherd height and weight comparison

Age (Months)

Male Weight (lb)

Female Weight (lb)


Factors Influencing Size and Weight

Several factors affect an Aussie’s size and weight. Genetics is key in size. Diet and exercise are also crucial. Regular vet checks help maintain healthy growth. Monitoring size and weight is important for your dog’s health.

Growth Stages of Australian Shepherds

The growth of an Australian Shepherd is quick, with puppies growing fast in size and weight. Knowing their growth stages helps your Aussie become a healthy adult dog.

Aussie shepherd growth patterns

Puppy Development

Australian Shepherd puppies grow quickly. From birth to 6 months, they can gain 2-3 pounds every week. By six months, male Aussies usually weigh between 40-46 pounds, and females are about 30-35 pounds. This time is key for their health and growth later on.

  1. 1 month: Males 3-5 lb, Females 2-4 lb
  2. 2 months: Males 10-15 lb, Females 5-10 lb
  3. 3 months: Males 20-25 lb, Females 15-20 lb
  4. 4 months: Males 27-32 lb, Females 20-25 lb

When Do Australian Shepherds Stop Growing?

Australian Shepherds mostly stop growing by 12 to 16 months. Still, they can continue to grow, especially in muscle mass and chest width, until they are two years old. Good food and exercise are important during this time.

Size and Weight by Age

An Australian shepherd-size calculator can be useful for tracking your Aussie’s growth. Here is a chart showing how much they might weigh at different ages:


Male Weight

Female Weight

1 month3-5 lb2-4 lb
6 months40-46 lb30-35 lb
12 months50-65 lb40-50 lb
2 years50-65 lb40-55 lb

This chart gives a good idea of Australian shepherd size by age. To make sure your Aussie does well, give them regular exercise, good food, and regular vet visits.

Health Concerns Related to Size and Weight

Keeping your Australian Shepherd at a healthy size and weight is very important. These dogs are full of energy and very loyal. But, they can have health issues like hip and elbow dysplasia and eye problems such as PRA and hereditary cataracts. It’s key to watch their health closely.

Common Health Issues

Australian Shepherds may have joint problems like hip and elbow dysplasia. This can make it hard for them to move. They are also at risk for eye issues, including PRA and hereditary cataracts, which can start showing between ages 1-5. Regular eye checks are needed. Epilepsy, which can be passed down, is another worry. The MDR1 gene mutation means they could react badly to certain meds.

Preventative Measures

Preventing health issues is key. It’s important to have regular vet visits to catch any problems early. A good diet is also crucial. It should meet AAFCO standards and match their energy needs. This helps avoid obesity, which can lead to more health troubles. Exercise keeps them at a good weight and happy.

Importance of Regular Vet Check-Ups

Regular vet visits are crucial for your Australian Shepherd. They help find health issues early for faster treatment. Considering pet insurance is a good idea, as many owners struggle with big vet bills. Insurance could cover up to 90% of costs. This helps with access to care. Regular check-ups, preventative actions, and a good diet play a big role in your dog’s health.


Q: What is the average size range for Australian Shepherds?

A: The average size for Australian Shepherds depends on gender. Males usually stand 20-23 inches tall and weigh 55-70 pounds. Females stand 18-21 inches tall, weighing 40-55 pounds.

Q: How does the size of male and female Australian Shepherds differ?

A: Males are larger, standing 20-23 inches tall and weighing 55-70 pounds. Females measure 18-21 inches in height and weigh 40-55 pounds.

Q: What factors can influence the size and weight of an Australian Shepherd?

A: Genetics, diet, exercise, and lifestyle affect an Australian Shepherd’s size and weight. Regular vet check-ups help keep them healthy.

Q: At what age do Australian Shepherds reach their full size?

A: They usually reach full size between 12-16 months. Some may continue to grow until they are two years old.

Q: How quickly do Australian Shepherd puppies grow?

A: Puppies can gain 2-3 pounds per week. By six months, females usually weigh 30-35 pounds, and males about 40-46 pounds.

Q: What are common health issues related to the size and weight of Australian Shepherds?

A: They may face joint dysplasia, eye problems, epilepsy, cancer, and MDR1 gene mutation issues. Keeping a healthy weight reduces these risks.

Q: How can I prevent health problems related to my Australian Shepherd’s size and weight?

A: Feed them high-quality food and ensure regular exercise. Regular vet visits are important. Consider getting health insurance for them.

Q: What should I feed my Australian Shepherd to maintain a healthy weight?

A: A balanced, high-quality diet is key. Talk to your vet for diet advice specific to your dog.

Q: Are Australian Shepherds suitable for apartments or small living spaces?

A: They are active and need space to move. They can live in small spaces but need a lot of exercise.

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About the author

Nathan Green

I'm Nate Green, a lifelong dog lover and proud owner of numerous dogs throughout my adult life. My passion for dogs goes beyond just owning them; I am dedicated to understanding and sharing the joys and complexities of dog ownership with fellow enthusiasts.