Australia Population Statistics 2026 | Growth, Age & Facts

Australia Population 2026

Australia’s population reached 27,801,023 people as of December 31, 2025, according to the Australian Bureau of Statistics’ most recent official Estimated Resident Population release — the last confirmed national figure available before this year’s Census count on August 11, 2026. The country added 412,500 people over the preceding twelve months, a growth rate of 1.5%, with net overseas migration contributing 301,000 of that increase against just 111,500 from natural increase (births minus deaths). This roughly 3-to-1 ratio of migration-driven to natural growth has become the defining structural feature of Australia’s demographic trajectory, a pattern that shapes everything from the country’s age structure to its state-by-state growth disparities.

This report compiles the key verified statistics on Australia’s population and demographics in 2026, covering national growth trends, age structure and median age by region, births and deaths data, migration patterns, and state-by-state population distribution. Sources include the Australian Bureau of Statistics’ National, State and Territory Population release, the Centre for Population’s 2025 Population Statement, and ABS regional age and sex data. Because different demographic trackers use varying baseline methodologies — official ABS Estimated Resident Population figures versus UN World Population Prospects-derived estimates — this article prioritizes ABS data as the authoritative source and notes alternative figures where relevant.

Interesting Facts About Australia’s Population 2026

Source: Australian Bureau of Statistics, National, State and Territory Population, December 2025 release; ABS Population and regional population by age and sex data; Centre for Population 2025 Population Statement, 2025–2026

The numbers above confirm that Australia’s population growth remains overwhelmingly migration-driven, with overseas arrivals contributing nearly three times as much to annual growth as the natural increase from births and deaths combined. This pattern reflects a fertility rate that has now fallen to 1.481 births per woman — the lowest level since Australian records began — sitting roughly 30% below the 2.1 replacement rate needed to sustain the population through natural increase alone. Without continued strong overseas migration, Australia’s population growth would be dramatically slower, and demographers project it could eventually begin contracting entirely.

What stands out most is the stark age gap between Australia’s capital cities and its regional areas: capital cities carry a median age of just 36.9 years, more than five years younger than the 42.0-year median recorded across the rest of the country. This divide reflects the concentration of younger workers, students, and recent migrants in major urban centers, while regional and coastal areas — particularly popular retirement destinations — skew substantially older, a pattern that has significant implications for regional healthcare and aged-care service planning in the years ahead.

Australia Population Growth and Components 2026

AUSTRALIA POPULATION GROWTH COMPONENTS — YEAR TO DECEMBER 2025
════════════════════════════════════════════════════════════════════
Net Overseas Migration   ████████████████████████████████████  301,000  (73%)
Natural Increase         ██████████████░░░░░░░░░░░░░░░░░░░░░░  111,500  (27%)
════════════════════════════════════════════════════════════════════
Total Annual Growth: 412,500 people (+1.5%)

Source: Australian Bureau of Statistics, National, State and Territory Population, December 2025; Centre for Population 2025 Population Statement, released 2026

Australia’s population growth trajectory shows clear signs of moderating from the exceptional post-pandemic migration surge, though the country continues adding well over 400,000 people annually — a pace that, if sustained, would see Australia’s population climbing toward 30 million by the early 2030s. The quarterly growth figures reveal some deceleration within the year itself, with Q4 2025’s addition of 78,638 people representing a somewhat slower pace than earlier quarters, consistent with the federal government’s stated policy objective of returning migration levels toward a more sustainable long-term trajectory following the exceptional intake recorded in 2022 and 2023.

Long-term ABS projections paint a picture of continued but progressively slower growth through the remainder of the century, with the population reaching somewhere between 34.3 and 45.9 million by 2071 depending on migration and fertility assumptions — a wide range that itself illustrates how sensitive very long-term population forecasting is to policy choices made over the coming decades. The projected decline in the annual growth rate from its current 1.4-1.5% down to as low as 0.2% by 2071 reflects the compounding effect of a fertility rate that shows no clear sign of recovering toward replacement level.

Australia’s Age Structure and Median Age 2026

MEDIAN AGE BY CAPITAL CITY — 2024 DATA
════════════════════════════════════════════════════════════════════
Darwin       ████████████████████████████░░░░░░░░  34.8 years (youngest)
Canberra     ██████████████████████████████░░░░░░  35.7 years
Brisbane     ███████████████████████████████░░░░░  36.4 years
Melbourne    ███████████████████████████████░░░░░  36.6 years
Sydney       ███████████████████████████████░░░░░  36.8 years
Perth        ████████████████████████████████░░░░  37.5 years
Adelaide     █████████████████████████████████░░░  39.2 years
Hobart       █████████████████████████████████░░░  39.3 years (oldest)
════════════════════════════════════════════════════════════════════
National median age: 38.3-38.5 years | Capital cities avg: 36.9 | Rest of Australia: 42.0

Source: Australian Bureau of Statistics, Regional population by age and sex, 2024 release, August 2025

The age gradient across Australia’s capital cities reveals a clear pattern tied to each city’s economic and demographic role: Darwin’s youthful 34.8-year median age, combined with the only capital city sex ratio favoring males (105.0 per 100 females), reflects its role as a hub for resource-sector work and defense personnel, drawing a disproportionately young, male workforce. At the opposite end, Hobart’s 39.3-year median age and lowest male-to-female ratio of any capital (95.2) reflects Tasmania’s older, more settled population base and comparatively limited inflow of young interstate or overseas migrants relative to the mainland capitals.

Beyond the capital cities, the most extreme age outliers in the country occur in small, specialized communities: areas like Acton (21.1 years) and Duntroon (21.9 years) in the ACT, both dominated by student and military populations, sit at one extreme, while coastal retirement destinations including Tea Gardens–Hawks Nest in NSW (66.5 years) and Bribie Island in Queensland (63.8 years) anchor the oldest end of the spectrum. This geographic sorting by age — young people concentrating in university towns and inner-urban areas, older Australians clustering in coastal retirement communities — is a defining feature of the country’s demographic geography that pure national or even capital-city averages tend to obscure. For a deeper look at how this aging population interacts with health outcomes across the country, our Life Expectancy in Australia report documents the regional life expectancy variations that mirror much of this same age-structure geography.

Births, Deaths, and Fertility Data 2026

Source: Australian Bureau of Statistics, Births Australia 2024 and Deaths Australia 2024 releases, via Population statistical bulletin

Australia’s fertility data for 2024 confirms a decade-long decline that shows no clear sign of reversing, with the 1.481 births per woman figure marking the second consecutive year below 1.5 and sitting roughly 30% below the replacement-level threshold. The modest 1.9% increase in raw birth numbers to 292,318 is, according to demographers, attributable largely to a temporarily larger pool of women in peak childbearing years passing through the population pyramid, rather than any genuine reversal in underlying fertility preferences — a distinction that matters for long-term population planning, since raw birth counts and the fertility rate itself can move in opposite directions.

The rising median age of parents — now 32.1 years for mothers and 33.9 years for fathers, both record highs — points directly to the structural forces behind Australia’s fertility decline: extended time in education, delayed career establishment, and rising housing costs that push family formation later into adulthood. Meanwhile, the Northern Territory’s position as the jurisdiction with the lowest life expectancy for both men (77.0 years) and women (80.7 years) reflects the territory’s unique demographic composition, including its significant remote and Indigenous population, whose health outcomes continue to lag behind the national average despite ongoing policy attention.

State and Territory Population Distribution 2026

Source: Australian Bureau of Statistics, National, State and Territory Population, December 2025 release

Western Australia’s position as the fastest-growing state, expanding 2.2% over the year to December 2025, reflects the continued strength of its resource-driven economy in attracting both overseas migrants and interstate movers, a pattern that has held consistently across recent ABS reporting periods. Victoria’s return to positive net interstate migration — the first such result since the pandemic era — marks a notable reversal from the sustained interstate outflow the state experienced during and immediately after COVID-19 lockdowns, suggesting Melbourne and regional Victoria have regained some of their prior appeal relative to other states.

At the other end of the spectrum, Tasmania’s growth rate of just 0.5% continues a multi-year pattern of the slowest population expansion of any state, with growth running below 0.3% quarterly since mid-2023 — a trend tied to the state’s older population base, limited overseas migration draw, and comparatively modest job growth relative to the resource and services booms driving faster expansion elsewhere. Notably, every single state and territory recorded positive population growth over the year to December 2025, meaning Australia’s demographic expansion, while uneven in pace, remains genuinely national in scope rather than concentrated in just one or two jurisdictions. For a detailed look at how this growth is testing housing supply across these fastest-growing states, our related coverage of the Crime Statistics in Australia report offers additional context on how rapid population growth intersects with public safety and social infrastructure planning in Australia’s largest and fastest-expanding jurisdictions.

Overseas-Born Population and Migration Origins 2026

Source: Australian Bureau of Statistics, Population statistical bulletin, release dated April 29, 2026

The finding that nearly one in three Australians (32.0%) was born overseas as of mid-2025 places Australia among the most migration-shaped populations of any developed nation, with India now the fastest-growing source country, having recorded the largest increase in its Australian-resident population since 2015 — a shift that has gradually reordered the traditional dominance of UK-born and other European-origin migrant communities in the country’s demographic makeup. This sustained migration intake, running at roughly 300,000 net arrivals annually, remains the single most important driver of Australia’s continued population growth against the backdrop of below-replacement domestic fertility.

The capital city growth breakdown for 2024-25 reveals an interesting internal dynamic: while capitals grew a combined 324,700 people, a net 29,800 residents actually left capital cities for regional areas during the same period, meaning the capitals’ overall growth was driven entirely by overseas migration and natural increase outpacing this internal outflow. Melbourne’s addition of 105,000 people — the largest absolute increase of any Australian city — combined with Perth’s leading 2.4% growth rate, illustrates how population growth in 2024-25 was concentrated in different ways across the country: Melbourne through sheer scale, Perth through proportional intensity tied to its resource-sector economic strength. For broader context on how this ongoing demographic shift is reshaping Australia’s cultural and linguistic composition, our Cultural Diversity in Australia report documents the country-of-birth and ancestry data behind these migration trends in further detail.

Data Reliability Notes for Australia Population Statistics 2026

Source: Cross-referenced Australian Bureau of Statistics and Centre for Population data, current as of mid-2026

Because independent demographic trackers base their “2026” population figures on UN World Population Prospects medium-fertility projections rather than the ABS’s own quarterly Estimated Resident Population releases, readers may encounter total population figures ranging from roughly 27.2 million to 28.5 million depending on the specific source and its reference date. This report prioritizes the ABS’s official December 2025 figure of 27,801,023 as the most authoritative and current confirmed data point, since it is drawn directly from Australia’s national statistical agency using administrative birth, death, and migration records rather than international projection modeling. Readers should also note that this year’s Census, scheduled for August 11, 2026, will eventually provide a fully updated ground-truth population count, though those results will not be published until June 2027 at the earliest.

Disclaimer: This research report is compiled from publicly available sources. While reasonable efforts have been made to ensure accuracy, no representation or warranty, express or implied, is given as to the completeness or reliability of the information. We accept no liability for any errors, omissions, losses, or damages of any kind arising from the use of this report.

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