
Newcastle, Australia, is a large metropolitan area in New South Wales. It is Australia's seventh-largest city, with a population of over 450,000 people. The population of the suburb of Newcastle was 3,852 as of the 2021 census, while the Greater Newcastle area, which includes Newcastle and Lake Macquarie, had a population of 682,465 in 2021. Newcastle's population is expected to grow by approximately 20,000 new citizens every 30 years, and the city has a population density of 1,103 people per square kilometre.
| Characteristics | Values |
|---|---|
| Population of Newcastle suburb | 3,852 (as per 2021 census) |
| Population of Newcastle city | 168,873 (as per 2021 census) |
| Population of Greater Newcastle Area | 682,465 (as per 2021 census) |
| Population of Newcastle (2025 estimate) | 450,000-469,794 |
| Population of Newcastle (June 2025 estimate) | 488,505 |
| Population density | 593.6 residents per sq km (or 1,103 people per sq km) |
| Average household size | 2.34 |
| Average age | 37 years |
| Average monthly mortgage payments | $1,742 per household |
| Average weekly rent | $270 |
| Top 5 ancestries | Australian, English, Irish, Scottish, German |
| Top 5 languages other than English | Macedonian, Italian, Mandarin, Greek, Arabic |
| Top 6 countries of birth | Australia, England, China, New Zealand, India, Vietnam |
| Religious makeup | 25.3% Catholic, 26.6% No religion, 22.3% Anglican, 5.9% Uniting Church, 3.2% Presbyterian and Reformed |
| Main occupations | 39.7% Professionals, 15.2% Managers, 12.0% Clerical & administrative workers, 8.8% Technicians & trades workers, 8.6% Sales workers, 8.4% Community & personal service workers, 3.8% Labourers, 2.1% Machinery operators & drivers, 1.5% Occupation inadequately described/ Not stated |
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What You'll Learn

Population estimates for 2025
Newcastle, Australia, is a large metropolitan area and the second-most populous area in New South Wales. It is often quoted as being the seventh-largest city in Australia. However, this is misleading as the area extends beyond the City of Newcastle and the Newcastle metropolitan area. The Newcastle Statistical District, or Greater Newcastle, includes the LGAs of Newcastle, Lake Macquarie, Maitland, Cessnock, and Port Stephens.
The population of the suburb of Newcastle was 3,852 as of the 2021 census. The Census usual resident population of the City of Newcastle in 2021 was 168,873, living in 74,579 dwellings with an average household size of 2.34. In 2021, the Greater Newcastle Area had a total population of 682,465.
According to recent trends, experts predict that the population will grow by approximately 20,000 new citizens every 30 years. By 2036, the population is expected to increase by 14.97%. Newcastle's population density is 1,103 people per square kilometer, one of the most populated cities in New South Wales.
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Population growth rate
Newcastle, Australia, is a large metropolitan area and the second-most populous area in New South Wales. It is commonly referred to as Greater Newcastle, which includes the LGAs of Newcastle, Lake Macquarie, Maitland, Cessnock, and Port Stephens. The population growth rate of Newcastle has varied over the last 13 years, ranging from 0.25% to 5.11%, with an average growth rate of 1.60% since 2011.
In 1950, Newcastle's population was 160,911. As of 2021, the population of the Newcastle metropolitan area was 682,465, with 83.6% of residents born in Australia. The population of the suburb of Newcastle was 3,852 in the 2021 census, while the Census usual resident population of the City of Newcastle in 2021 was 168,873. Newcastle's population density is approximately 593.6 residents per square kilometre or 1,103 people per kilometre, making it one of the most populated cities in New South Wales.
The population of Newcastle is expected to continue growing due to the opportunities the city provides. Experts predict the population will increase by around 20,000 new citizens every 30 years, with an expected population growth of 14.97% by 2036. However, there are concerns about whether housing developments will keep pace with population growth.
The University of Newcastle, Australia, is a world-class educational institution with a strong focus on teaching, research, and student experience. It has contributed to the city's diverse population and creative arts scene.
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Population density
Newcastle, Australia, is a large metropolitan area and the second-most-populous area of New South Wales. It is often referred to as the seventh-largest city in Australia, but this is misleading as the area extends beyond the City of Newcastle and the metropolitan area. The area is officially called the Newcastle Statistical District, or Greater Newcastle, which includes the LGAs of Newcastle, Lake Macquarie, Maitland, Cessnock, and Port Stephens.
The population of Newcastle, Australia, is estimated to be between 430,800 and 560,000 people. The City of Newcastle, a subset of Greater Newcastle, has an estimated resident population of 176,860 for 2024, with a population density of 946.7 persons per square km. This is a significant increase from the 2014 population of 430,800, which was 1.824% of the total Australian population. The suburb of Newcastle had a population of 3,852 as of the 2021 census.
Greater Newcastle had a total population of 682,465 in 2021. The city of Newcastle covers a total surface area of 261.8 square kilometers, resulting in a population density of approximately 593.6 residents per square kilometer. The average number of people per household in Newcastle is 2.4, and there were approximately 68,733 private residences occupied in 2011.
The population of Newcastle is expected to continue growing due to the vast opportunities the city provides. Experts predict the population will grow by approximately 20,000 new citizens every 30 years. By June 2025, Newcastle's population is expected to reach 488,505.
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Population demographics
Newcastle, Australia, is a large metropolitan area and the second-most populous area in New South Wales. It is commonly referred to as Greater Newcastle, which includes the cities of Newcastle and Lake Macquarie and is the hub of the Lower Hunter region. The population of Newcastle is estimated to be between 450,000 and 488,505 as of 2025, making it the seventh-largest city in Australia. In 1950, the population of Newcastle was 160,911. The suburb of Newcastle had a population of 3,852 as of the 2021 census, while the Census usual resident population of the City of Newcastle in 2021 was 168,873.
In terms of population demographics, Newcastle has a diverse range of ethnic and cultural groups. According to the Australia census, the top five ancestries are Australian, English, Irish, Scottish, and German. The city has a high population density, with approximately 593.6 residents living per square kilometer. The average age of a Novocastrian resident is 37 years, and the average household size is 2.34 people. There are around 40,000 families in the city, with most families having 1-2 children.
The top five languages spoken in Newcastle, other than English, are Macedonian, Italian, Mandarin, Greek, and Arabic. The most common countries of birth, other than Australia, are England, China, New Zealand, India, and Vietnam. The religious makeup of the city is diverse, with 25.3% Catholic, 26.6% reporting no religion, 22.3% Anglican, 5.9% Uniting Church, and 3.2% Presbyterian and Reformed. Aboriginal and Torres Strait Islander people make up 3.8% of the population.
The main occupations of people living in Newcastle vary, with 39.7% working in professional roles, 15.2% as managers, 12.0% in clerical and administrative positions, 8.8% as technicians and trades workers, and 8.6% in sales. The top industries include health care, social assistance, professional services, education, and accommodation and food services.
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Population by country of birth
Newcastle, New South Wales, Australia, is a large metropolitan area and the second-most populous area in New South Wales. The City of Newcastle is a local government area in the Hunter region. The Greater Newcastle Area includes the LGAs of Newcastle, Lake Macquarie, Maitland, Cessnock, and Port Stephens.
In 2021, the region had a total population of 682,465. Of the Newcastle metropolitan area, 83.6% were born in Australia. The next most common countries of birth were England (2.3%), New Zealand (1.0%), China (0.7%), India (0.5%), and the Philippines (0.4%). Aboriginal and Torres Strait Islander people made up 3.8% of the population.
The suburb of Newcastle had a population of 3,852 in the 2021 census. The City of Newcastle local government area had a population of 168,873 in the 2021 census, of which 49.1% were male and 50.9% were female.
The population of the wider Newcastle area is expected to grow. Experts predict the population will grow by approximately 20,000 new citizens every 30 years, according to recent trends.
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Frequently asked questions
The population of Newcastle, Australia, is estimated to be between 450,000 and 469,794 as of 2025. Newcastle is the seventh-largest city in Australia.
Newcastle's population density is estimated to be between 593.6 and 1,103 people per square kilometre.
The suburb of Newcastle had a population of 3,852 as of the 2021 census. The Census usual resident population of the City of Newcastle in 2021 was 168,873.


























