Waterloo (NSW)

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Waterloo (NSW) has a projected population of approximately 18,757 in May 2026, calculated from regional census analysis and address validation records compiled by Districts. Compared to the 16,379 residents recorded in the 2021 Census, this represents a growth of 2,378 individuals, or 14.5%. This estimation stems from a baseline population of 18,631 calculated using the ABS June 2025 release of official resident statistics, supplemented by 149 validated new addresses established post-census. The local density reaches 16,599 persons per square kilometer, placing Waterloo (NSW) within the highest 10% of all Australian locations analyzed and highlighting the high demand for local land. The 14.5% rate of expansion since the 2021 census outpaced the broader New South Wales figure of 7.1% as well as the wider Sydney metropolitan area, positioning Waterloo (NSW) as a regional leader in population growth. This growth was largely underpinned by arrival numbers from abroad, which accounted for roughly of the overall population gains in recent times.

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The local workforce exhibits high levels of education, with a notable concentration of employees in the technology sector, alongside a registered unemployment rate of 7.5% and a 1.8% rise in employment over the preceding year. As of March 2026, the employed resident count stands at 10,824, with the local unemployment rate sitting 3.3% higher than the Greater Sydney average of 4.1%, pointing to potential for workforce absorption, while workforce participation aligns closely with the regional rate of 69.1%. Census responses also indicated that 58.5% of workers operated from home, though this figure reflects the influence of pandemic-related restrictions.

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According to the latest ATO postcode records for the financial year 2023, the median taxpayer income in the area is $64,199, with an average income of $78,302. These figures are elevated on a national scale, comparing to a median of $60,817 and an average of $83,003 across Greater Sydney. Factoring in Wage Price Index growth of 10.32% since the financial year 2023, current estimates for March 2026 stand at roughly $70,824 for the median and $86,383 for the average. Census data places individual earnings in the 89th percentile across Australia, with weekly income at $1,172. Income distributions show that the largest cohort, comprising 29.8% of the local population (5,589 people), earns between $1,500 and $2,999 weekly, which is similar to the regional average of . Furthermore, of households receive high weekly earnings exceeding supporting local retail and services. Housing costs consume of income, yet strong baseline earnings place the disposable income of residents in the th percentile, with the SEIFA index ranking the area in the th decile.

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At the time of the latest Census, the housing stock consisted of 0.5% standalone houses and 99.4% alternative dwellings, such as townhouses and apartments, in contrast to the metropolitan Sydney split of 55.9% houses and 44.1% other dwellings. Homeownership rates in the area were lower than the Sydney metropolitan average, standing at 6.3%, with the remaining properties occupied by residents with a mortgage (18.4%) or renting (75.3%). The median monthly mortgage payment was higher than the metropolitan average at $2,500, while the median weekly rent was $530, compared to Sydney averages of $2,427 and $470 respectively. Locally, monthly mortgage costs are higher than the national average of $1,863, and weekly rents exceed the Australian baseline of $375.

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Families make up 46.6% of all households, consisting of couples with children at 9.4%, couples without children at 30.5%, and single parents at 5.4%. The remaining 53.4% are non-family households, with single-person households representing 40.5% and group households making up 12.8% of the total. The average household size of 1.8 people is smaller than the Greater Sydney average of 2.7.

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Attainment levels among local residents are high, with 56.1% of individuals aged 15 and over holding a university degree, compared to national and state averages of 30.4% and 32.2% respectively. This educational profile positions the workforce well for roles in knowledge-intensive sectors. Bachelor degrees are the most common qualification at 36.6%, followed by postgraduate degrees at 16.7% and graduate diplomas at 2.8%. Vocational education accounts for 21.3% of qualifications among residents aged 15 and over, split between advanced diplomas at 10.5% and certificates at 10.8%.

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Public transport services in Waterloo include 39 active stops, encompassing a network of light rail and bus routes. These facilities are served by 16 distinct transport routes, which facilitate 11,492 passenger trips on a weekly basis. Accessibility is high, with the average resident living within 100 meters of a stop. Because the suburb is primarily residential, the majority of working residents commute to other areas, with private vehicles being the most common mode of travel at 44%, followed by buses at 16%, and walking at 14%. Private vehicle ownership averages 0.3 cars per household, which is lower than the metropolitan average. Additionally, 58.5% of working residents worked from home according to the 2021 Census, which was influenced by pandemic-related restrictions.

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Health indicators are positive overall, with local mortality and illness rates aligning closely with national averages. The prevalence of chronic conditions is low in the general population, though it exceeds national baselines within older, higher-risk cohorts. Private health insurance coverage is high, held by approximately 58% of the population, representing about 10,850 people, which is comparable to the Greater Sydney average of 59.9%.

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The area exhibits high levels of cultural diversity, with 43.3% of residents speaking a language other than English at home and 59.3% born outside of Australia. Christianity is the most common religious affiliation, representing 32.2% of the population. The most pronounced religious divergence is in Judaism, which is practiced by 1.6% of residents, compared to 0.8% across the broader Sydney metropolitan area.

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With a median age of 33, Waterloo is younger than the Greater Sydney median of 37 and the national median of 38. The suburb has a high concentration of residents aged 25 to 34, who make up 33.2% of the population, compared to a lower proportion of children aged 5 to 14, who represent 3.8%. The concentration of young adults aged 25 to 34 is higher than the national average of 14.6%. Since the 2021 Census, the proportion of residents aged 15 to 24 grew from 11.4% to 13.7%, and the 35 to 44 cohort rose from 18.4% to 19.9%. Meanwhile, the to cohort decreased from to . By demographic forecasts project that the to age group will grow by , adding residents to reach a total of .

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Waterloo currently has an estimated 731 children under 5 years old, comprising approximately 438 children aged 0-2 and 292 children aged 3-4. This cohort grew by an estimated 6% since the previous census. while population forecasts indicate future growth, with an anticipated increase of 32% by 2041 (to approximately 967 children). Meanwhile the 5-12 cohort currently amounts to 568. While growth has been positive birth rates observed in the area have been moderate, with approximately 8.5 births per 1,000 residents recorded over the latest two-year period analysed which ranks the area within the middle tier nationally. This rate has slowed down slightly in recent years however.