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 November 2025, the estimated population of Jilliby is around 1,765. This figure reflects an increase of 71 people since the 2021 Census, which reported a population of 1,694. The latest estimate by AreaSearch, following examination of the June 2024 ABS ERP data release and validation of two new addresses, is 1,762 residents. This results in a density ratio of 21 persons per square kilometer. Jilliby's population growth of 4.2% since the 2021 Census exceeded both the SA4 region (3.1%) and the SA3 area. Overseas migration contributed approximately 47.0% of overall population gains during recent periods, with all drivers including natural growth and interstate migration being positive factors.

AreaSearch projects Jilliby's population to increase by 119 persons to 2041 based on aggregated SA2-level projections, reflecting a gain of 7.1% over the 17 years.

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 experienced around 2 dwellings receiving development approval each year over the past 5 financial years. This totals an estimated 13 homes. So far in FY-26, 1 approval has been recorded.

Between FY-21 and FY-25, an average of 3.9 people moved to the area for each dwelling built, indicating demand significantly outpacing supply. New homes were constructed at an average value of $419,000 during this period. Compared to Greater Sydney, Jilliby has less development activity, with 65.0% fewer approvals per person. This limited new supply generally supports stronger demand and values for established dwellings. Recent development in the area has been entirely comprised of standalone homes, maintaining its traditional low density character.

The estimated count of people in the area per dwelling approval is 390. Future projections show Jilliby adding 126 residents by 2041. Construction pace is reasonable with projected growth, but buyers may face growing competition as population increases.

Jilliby has very high levels of nearby infrastructure activity, ranking in the top 20% nationally

Changes to local infrastructure significantly influence an area's performance. AreaSearch identified 17 projects that could impact the area. Notable ones include Warnervale Town Centre, Rosella Rise, Warnervale Water and Sewer Infrastructure Program, and Central Coast Airport Upgrade. The following list details those likely to be most relevant.

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

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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 3.1% as of June 2025, below Greater Sydney's 4.2%.

Employment growth over the past year was estimated at 2.4%. As of June 2025971 residents were employed with an unemployment rate of 1.1% below Greater Sydney's rate and workforce participation at 67.1%, above Greater Sydney's 60.0%. Key industries include construction, education & training, and health care & social assistance. Construction employment is particularly high, at 1.6 times the regional average.

Professional & technical services employ only 5.1% of local workers, below Greater Sydney's 11.5%. The area may offer limited local employment opportunities, indicated by Census data comparing working population to resident population. Over a 12-month period ending June 2025, employment increased by 2.4% and labour force grew by 2.3%, keeping unemployment relatively stable at 1.1%. In contrast, Greater Sydney saw employment rise by 2.6%, labour force grow by 2.9%, and unemployment increase to 4.5%. National employment forecasts from Jobs and Skills Australia, issued in Sep-22, 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 these are simple extrapolations for illustrative purposes only and do not account for localised population projections.

The economic profile demonstrates exceptional strength, placing the area among the top 10% nationally based on comprehensive AreaSearch income analysis

AreaSearch's data for financial year 2022 shows Jilliby's median income at $61,889 and average income at $75,203. This is higher than Greater Sydney's median of $56,994 and average of $80,856. By September 2025, estimates suggest a median income of approximately $69,693 and an average of $84,686, based on Wage Price Index growth of 12.61%. The 2021 Census ranks Jilliby's household incomes at the 94th percentile ($2,713 weekly) and personal incomes at the 60th percentile. Most locals (529 people, 30.0%) fall into the $1,500 - 2,999 income category, similar to regional levels (30.9%). A substantial proportion (42.8%) earn above $3,000 weekly. After housing costs, residents retain 87.8% of their income. 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

Dwelling structure in Jilliby, as evaluated at the latest Census, comprised 98.0% houses and 2.0% other dwellings. In comparison, Sydney metro had 83.2% houses and 16.7% other dwellings. Home ownership in Jilliby was 41.5%, with mortgaged dwellings at 48.3% and rented ones at 10.2%. The median monthly mortgage repayment in Jilliby was $2,564, compared to Sydney metro's $1,900. Median weekly rent in Jilliby was $445, while Sydney metro recorded $385. Nationally, Jilliby's mortgage repayments were higher at $2,564 against the Australian average of $1,863. Rents in Jilliby were substantially above the national figure of $375 at $445.

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, which is larger than the Greater Sydney average of 2.5.

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 - advanced diplomas account for 11.6% and certificates for 29.2%. Educational participation is high at 30.9%, including 10.1% in primary education, 9.0% in secondary education, and 4.9% in tertiary education.

Jilliby Public School serves the area with an enrollment of 53 students. The school focuses on primary education, with ICSEA score of 980 indicating typical Australian school conditions. Secondary options are available in nearby areas. Local school capacity is limited at 3.0 places per 100 residents compared to the regional average of 13.6, leading many families to travel for schooling.

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

Jilliby has 81 active public transport stops, all of which are bus stops. There are 13 different bus routes operating in the area, providing a total of 120 weekly passenger trips combined. The accessibility to these transport services is rated as good, with residents on average being located 305 meters away from the nearest stop.

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

Jilliby's residents are relatively healthy in comparison to broader Australia with a fairly standard level of common health conditions seen across both young and old age cohorts

Jilliby's health metrics closely align with national benchmarks, with common health conditions seen across both young and old age cohorts. Approximately 57% of Jilliby's total population (~999 people) has private health cover, compared to 49.3% in Greater Sydney.

Mental health issues affect 8.8% of residents, while arthritis impacts 8.0%. Around 69.2% of residents declare themselves completely clear of medical ailments, compared to 61.5% across Greater Sydney. As of 2021, 20.0% of Jilliby's residents are aged 65 and over (353 people), lower than the 22.3% in Greater Sydney. Health outcomes among seniors in Jilliby are above average, performing better than the general population in health metrics.

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 was found to have low cultural diversity, with 88.9% born in Australia, 94.0% being citizens, and 97.3% speaking English only at home. Christianity was the dominant religion in Jilliby, practiced by 62.6%, compared to 56.2% across Greater Sydney. The top three ancestry groups were Australian (34.3%), English (32.1%), and Irish (8.4%).

Notably, French (0.8%) Maltese (1.2%), and Dutch (1.6%) ethnicities were overrepresented compared to regional averages of 0.4%, 1.0%, and 1.0% respectively.

Jilliby hosts an older demographic, ranking in the top quartile nationwide

The median age in Jilliby is 43 years, which is considerably higher than Greater Sydney's average of 37 years and exceeds the national average of 38 years. The age profile shows that those aged 15-24 are particularly prominent at 17.3%, while those aged 25-34 make up a smaller proportion at 5.4%. Since 2021, the population of those aged 75-84 has grown from 4.1% to 6.5%. Conversely, the age group of 5-14 has declined from 14.1% to 12.7%, and those aged 25-34 have dropped from 6.6% to 5.4%. By 2041, demographic projections show significant shifts in Jilliby's age structure. The population of those aged 75-84 is projected to rise substantially by 73 people (64%), from 114 to 188. Notably, the combined age groups of 65 and above will account for 72% of total population growth, reflecting the area's aging demographic profile. Conversely, the age cohorts of 25-34 and 55-64 are expected to experience population declines.