Jilliby

An assessment of population growth drivers in Jilliby reveals an overall ranking slightly below national averages considering recent, and medium term trends

As of Feb 2026, the estimated population of Jilliby is around 1,766, reflecting a growth of 72 people since the 2021 Census. This increase represents a 4.3% change from the previous population count of 1,694. The current resident population estimate of 1,758 by AreaSearch, following examination of ABS's latest ERP data release in June 2024 and validation of two new addresses since the Census date, indicates a population density ratio of 21 persons per square kilometer. Jilliby's growth rate of 4.3% since the 2021 census exceeds that of its SA4 region at 3.7%. Overseas migration contributed approximately 47.0% to overall population gains during recent periods, with all drivers including natural growth and interstate migration being positive factors. AreaSearch adopts ABS/Geoscience Australia projections for each SA2 area released in 2024 with a base year of 2022.

For areas not covered by this data, NSW State Government's SA2 level projections released in 2022 with a base year of 2021 are utilized. Growth rates by age group from these aggregations are applied to all areas for years 2032 to 2041. Based on aggregated SA2-level projections, the suburb is expected to increase its population by 117 persons by 2041, reflecting a total increase of 6.8% over the 17-year period.

Residential development activity is lower than average in Jilliby according to AreaSearch's national comparison of local real estate markets

AreaSearch analysis of ABS building approval numbers allocated from statistical area data indicates Jilliby averaged approximately 2 new dwelling approvals annually over the past five financial years, totalling an estimated 11 homes. So far in FY-26, 1 approval has been recorded. Over these five years, an average of 4.5 people moved to the area for each dwelling built. This demand significantly exceeds new supply, typically leading to price growth and increased buyer competition.

New properties are constructed at an average value of $419,000, slightly above the regional average, suggesting a focus on quality developments. In FY-26, there have been $3.6 million in commercial approvals, indicating the area's residential character. Relative to Greater Sydney, Jilliby shows substantially reduced construction activity, with 70.0% below the regional average per person. This scarcity of new homes typically strengthens demand and prices for existing properties, though recent construction activity has intensified. This level is also below average nationally, reflecting the area's maturity and possible planning constraints.

Recent development has been entirely comprised of standalone homes, maintaining Jilliby's traditional low density character with a focus on family homes appealing to those seeking space. The estimated count of 585 people in the area per dwelling approval reflects its quiet, low activity development environment. Population forecasts indicate Jilliby will gain 121 residents through to 2041, according to the latest AreaSearch quarterly estimate. Building activity is keeping pace with growth projections, though buyers may experience heightened competition as the population grows.

Jilliby has strong levels of nearby infrastructure activity, ranking in the top 40% nationally

The performance of an area can significantly be influenced by changes in local infrastructure, major projects, and planning initiatives. AreaSearch has identified a total of 17 projects that are likely to impact the area. Notable projects include Warnervale Town Centre, Rosella Rise, Warnervale Water and Sewer Infrastructure Program, and Central Coast Airport Upgrade. The following list details those projects that are most relevant.

Professional plan users can use the search below to filter and access additional projects.

Denotes AI-based impression for illustrative purposes only, not to be taken as definitive under any circumstances. Please follow links and conduct other investigations from the project's source for actual imagery. Developers and project owners wishing us to use original imagery please Contact Us and we will do so.

The labour market in Jilliby shows considerable strength compared to most other Australian regions

Jilliby's workforce is skilled with notable representation in construction. The unemployment rate was 3.3% as of September 2025. Employment growth over the past year was estimated at 3.2%.

This figure is based on AreaSearch aggregation of statistical area data. In Jilliby, 999 residents were employed while the unemployment rate was 0.9% lower than Greater Sydney's rate of 4.2%. Workforce participation was similar to Greater Sydney's 70.0%. According to Census responses, 31.4% of residents worked from home.

Dominant employment sectors included construction, education & training, and health care & social assistance. Construction had an employment share of 1.6 times the regional level. Professional & technical services had limited presence at 5.1%, compared to the regional average of 11.5%. Employment opportunities locally appeared limited based on Census working population vs resident population comparison. Between September 2024 and September 2025, employment increased by 3.2% while labour force rose by 3.4%, leading to a 0.3 percentage point unemployment rate increase. In Greater Sydney, employment grew by 2.1%, labour force expanded by 2.4%, and unemployment rose by 0.2 percentage points during the same period. Jobs and Skills Australia's national employment forecasts from May-25 project national employment growth of 6.6% over five years and 13.7% over ten years. Applying these projections to Jilliby's employment mix suggests local employment should increase by 6.1% over five years and 12.8% over ten years, though this is a simplified extrapolation for illustrative purposes and does not account for localised population projections.

Income metrics indicate excellent economic conditions, with the area achieving higher performance than 75% of national locations assessed by AreaSearch

AreaSearch's latest postcode level ATO data for financial year 2023 shows Jilliby's median taxpayer income at $61,889 and average at $75,203. Nationally, the median is lower at $49,330 with an average of $70,500. In Greater Sydney, the median is $60,817 and average is $83,003. By September 2025, adjusted for Wage Price Index growth of 8.86%, Jilliby's estimated median income would be $67,372 and average at $81,866. The 2021 Census ranks household incomes in Jilliby at the 94th percentile ($2,713 weekly), while personal incomes rank at the 60th percentile. The earnings profile indicates that 529 residents (30.0%) earn $1,500 - 2,999 weekly, similar to regional levels at 30.9%. Notably, 42.8% of residents earn above $3,000 weekly, suggesting strong economic capacity. After housing costs, residents retain 87.8% of income, reflecting strong purchasing power. The area's SEIFA income ranking places it in the 7th decile.

Jilliby is characterized by a predominantly suburban housing profile, with above-average rates of outright home ownership

The dwelling structure in Jilliby, as per the latest Census evaluation, consisted of 98.0% houses and 2.0% other dwellings (semi-detached, apartments, 'other' dwellings), compared to Sydney metro's 55.9% houses and 44.1% other dwellings. Home ownership in Jilliby was at 41.5%, with mortgaged dwellings at 48.3% and rented ones at 10.2%. The median monthly mortgage repayment in the area was $2,564, higher than Sydney metro's average of $2,427. The median weekly rent figure for Jilliby was recorded at $445, compared to Sydney metro's $470. Nationally, Jilliby's mortgage repayments were significantly higher than the Australian average of $1,863, while rents were substantially above the national figure of $375.

Jilliby features high concentrations of family households, with a higher-than-average median household size

Family households account for 91.0% of all households, including 49.1% couples with children, 32.1% couples without children, and 9.2% single parent families. Non-family households constitute the remaining 9.0%, with lone person households at 7.2% and group households comprising 2.0%. The median household size is 3.4 people, larger than the Greater Sydney average of 2.7.

Jilliby shows below-average educational performance compared to national benchmarks, though pockets of achievement exist

The area's university qualification rate is 21.0%, significantly lower than Greater Sydney's average of 38.0%. Bachelor degrees are the most common at 14.7%, followed by postgraduate qualifications (4.3%) and graduate diplomas (2.0%). Vocational credentials are prevalent, with 40.8% of residents aged 15+ holding them, including advanced diplomas (11.6%) and certificates (29.2%). Educational participation is high, with 30.9% currently enrolled in formal education: primary (10.1%), secondary (9.0%), and tertiary (4.9%).

Educational participation is notably high, with 30.9% of residents currently enrolled in formal education. This includes 10.1% in primary education, 9.0% in secondary education, and 4.9% pursuing tertiary education.

Transport servicing is low compared to other areas nationally based on assessment of service frequency, route connectivity and accessibility

Jilliby has 84 active public transport stops, all of which are bus stops. These stops are served by 13 different routes that together provide 120 weekly passenger trips. Transport accessibility is rated as good, with residents typically located 305 meters from the nearest stop. Most residents commute outward from Jilliby, with car being the dominant mode of transport at 96%. The average vehicle ownership per dwelling is 2.7, which is above the regional average. According to the 2021 Census, 31.4% of residents work from home, a figure that may be influenced by COVID-19 conditions.

On average, there are 17 trips per day across all routes, equating to approximately one weekly trip per individual stop.

The level of general health in Jilliby is notably higher than the national average with both young and old age cohorts seeing low prevalence of common health conditions

Jilliby shows superior health outcomes based on AreaSearch's evaluation of mortality rates and chronic condition prevalence. Both youth and elderly cohorts exhibit low prevalence of common health conditions.

Private health cover is high at approximately 57% (~1000 people), compared to Greater Sydney's 59.9%. Mental health issues and arthritis are most prevalent, affecting 8.8% and 8.0% respectively. 69.2% report no medical ailments, versus Greater Sydney's 74.6%. Health outcomes among working-age residents are typical. The area has 20.8% aged 65+, compared to Greater Sydney's 15.4%. Senior health outcomes are above average, ranking nationally in line with the general population.

Jilliby is considerably less culturally diverse than average when assessed alongside AreaSearch's national rankings for language and cultural background related metrics

Jilliby's population is predominantly Australian-born, with 88.9% having been born in Australia. Citizenship is also prevalent, with 94.0% of residents being citizens. English is the primary language spoken at home, with 97.3% of households reporting this.

Christianity is the dominant religion in Jilliby, comprising 62.6% of its population, which is higher than the Greater Sydney average of 49.2%. In terms of ancestry, Australians make up the largest group at 34.3%, followed by English (32.1%) and Irish (8.4%). Notably, French, Maltese, and Dutch ancestries are overrepresented in Jilliby compared to regional averages: French at 0.8% vs 0.5%, Maltese at 1.2% vs 1.0%, and Dutch at 1.6% vs 0.7%.

Jilliby hosts a notably older demographic compared to the national average

The median age in Jilliby is 43 years, which is higher than Greater Sydney's average of 37 years and exceeds the national average of 38 years. The age profile shows that those aged 45-54 are most prominent at 16.6%, while those aged 25-34 comprise only 5.4%. Between 2021 and present, the 75 to 84 age group has grown from 4.1% to 6.9%, and the 65 to 74 cohort has increased from 11.1% to 12.4%. Conversely, the 5 to 14 age group has decreased from 14.1% to 12.7%, and the 25 to 34 age group has dropped from 6.6% to 5.4%. By 2041, demographic projections show significant shifts in Jilliby's age structure. The 75 to 84 age cohort is projected to rise substantially, increasing by 68 people (56%) from 121 to 190. Notably, the combined 65+ age groups will account for 69% of total population growth, reflecting the area's aging demographic profile. Meanwhile, the 25 to 34 and 55 to 64 cohorts are expected to experience population declines.