Jilliby

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

Jilliby's population, as of November 2025, is estimated at around 1,766 people. This reflects an increase of 72 individuals since the 2021 Census, which reported a population of 1,694 people in Jilliby (SA2). The increase is inferred from AreaSearch's resident population estimate of 1,758 following examination of the ABS's latest ERP data release (June 2024) and an additional two validated new addresses since the Census date. This results in a density ratio of approximately 21 persons per square kilometer. Jilliby's growth rate of 4.3% since the 2021 census exceeded that of its SA4 region at 3.7%. Overseas migration contributed about 47.0% of overall population gains during recent periods, with other drivers such as natural growth and interstate migration also being positive factors.

AreaSearch's projections for Jilliby are based on ABS/Geoscience Australia projections released in 2024 using a base year of 2022. For areas not covered by this data, NSW State Government SA2-level projections released in 2022 with a base year of 2021 are utilised. Growth rates by age group from these aggregations are applied to Jilliby for the years 2032 to 2041. Future population trends indicate an increase just below the national median, with projections suggesting a rise of 121 persons by 2041, reflecting a total increase of approximately 7.2% 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 has received approximately 2 dwelling approvals annually. Over the past 5 financial years, from FY-21 to FY-25, around 11 homes were approved, with an additional 1 approved so far in FY-26. This results in an average of about 4.5 people moving to the area each year for every dwelling built over these years.

Demand significantly outpaces supply, which typically exerts upward pressure on prices and increases competition among buyers. New homes are being constructed at an average expected cost value of $419,000, slightly above the regional average, suggesting a focus on quality developments. This financial year has seen $3.6 million in commercial approvals, indicating the area's residential character. Compared to Greater Sydney, Jilliby records notably lower building activity, at 70.0% below the regional average per person. This limited new supply generally supports stronger demand and values for established properties, although building activity has accelerated in recent years.

The area's level is also below the national average, suggesting its established nature and potential planning limitations. Recent development has been exclusively detached houses, maintaining Jilliby's traditional low density character with a focus on family homes appealing to those seeking space. The estimated population per dwelling approval is 585 people, reflecting its quiet, low activity development environment. Population forecasts indicate Jilliby will gain approximately 127 residents by 2041 (from the latest AreaSearch quarterly estimate). If current development rates continue, housing supply may not keep pace with population growth, potentially increasing competition among buyers and supporting stronger price growth.

Jilliby has moderate levels of nearby infrastructure activity, ranking in the top 50% 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 expected 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 likely to be most relevant.

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

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AreaSearch analysis places Jilliby well above average for employment performance across multiple indicators

Jilliby's workforce is skilled with notable representation in the construction sector. The unemployment rate was 3.3% as of September 2025.

Employment growth over the past year was estimated at 3.1%. This rate is lower than Greater Sydney's unemployment rate of 4.2%, and workforce participation was higher at 67.1%. Key industries for employment among residents are construction, education & training, and health care & social assistance. Construction employment levels were 1.6 times the regional average while professional & technical services employed only 5.1% of local workers compared to Greater Sydney's 11.5%.

Employment opportunities locally may be limited as indicated by Census data comparing working population to resident population. Over the 12 months to September 2025, employment increased by 3.1%, labour force increased by 3.5%, causing unemployment rate to rise by 0.3 percentage points in Jilliby. Greater Sydney recorded employment growth of 2.1% with unemployment rising by 0.2 percentage points during the same period. State-level data as of 25-Nov shows NSW employment contracted by 0.03% while unemployment rate was at 3.9%. National employment forecasts from May-25 suggest national employment should expand by 6.6% over five years and 12.8% over ten years, with industry-specific projections indicating Jilliby's employment mix could increase by 6.1% over five years and 12.8% over ten years.

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 ending June 2023 indicates that median income in Jilliby suburb is $61,889 and average income stands at $75,203. This contrasts with Greater Sydney's median income of $60,817 and average income of $83,003 for the same period. Based on Wage Price Index growth of 8.86% from July 2023 to September 2025, estimated median income would be approximately $67,372 and average income $81,866 as of September 2025. According to the 2021 Census, Jilliby's household incomes rank at the 94th percentile ($2,713 weekly), while personal incomes rank at the 60th percentile. Income distribution shows that 30.0% of locals (529 people) fall into the $1,500 - 2,999 category, similar to regional levels where this cohort represents 30.9%. A substantial proportion, 42.8%, earn above $3,000/week, indicating strong economic capacity in the suburb. After housing costs, residents retain 87.8% of their 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

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 dwellings at 10.2%. The median monthly mortgage repayment in the area was $2,564, compared to Sydney metro's $1,900. The median weekly rent figure in Jilliby was $445, while Sydney metro recorded $385. Nationally, Jilliby's mortgage repayments were higher at $2,564 versus 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 constitute 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 comprise the remaining 9.0%, with lone person households at 7.2% and group households at 2.0%. The median household size is 3.4 people, 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, including advanced diplomas (11.6%) and certificates (29.2%). Educational participation is high at 30.9%, comprising 10.1% in primary education, 9.0% in secondary education, and 4.9% in tertiary education.

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 83 active public transport stops, all of which are bus stops. These stops are served by 13 different routes that together offer 120 weekly passenger trips. The accessibility of the transport system is rated as good, with residents typically living within 305 meters of the nearest stop.

On average, there are 17 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, reflecting standard levels of common health conditions across both young and old age cohorts. Approximately 57% (~1000 people) have private health cover, higher than Greater Sydney's 50.4%.

Mental health issues are the most prevalent condition (8.8%), followed by arthritis (8.0%). About 69.2% report no medical ailments, compared to 61.5% in Greater Sydney. Around 20.0% (~353 people) of residents are aged 65 and over, lower than Greater Sydney's 22.3%. Health outcomes among seniors exceed averages, outperforming 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 cultural diversity was found to be below average, with 88.9% of its population born in Australia, 94.0% being citizens, and 97.3% speaking English only at home. Christianity is the main religion in Jilliby, comprising 62.6% of people, compared to 56.2% across Greater Sydney. The top three ancestry groups are Australian (34.3%), English (32.1%), and Irish (8.4%).

Notably, French (0.8%) is overrepresented in Jilliby compared to the regional average of 0.4%. Similarly, Maltese (1.2%) and Dutch (1.6%) groups are also more prevalent than their respective regional averages of 1.0% each.

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 15-24 make up 17.3% of the population, while those aged 25-34 constitute only 5.4%. Between 2021 and present, the 75 to 84 age group has increased from 4.1% to 6.5% of the population. Conversely, the 5 to 14 cohort 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 indicate significant shifts in Jilliby's age structure. The 75 to 84 age cohort is projected to rise substantially, increasing by 74 people (65%) from 114 to 189. Notably, the combined 65+ age groups are expected to account for 72% of total population growth, reflecting the area's aging demographic profile. Conversely, the 25 to 34 and 55 to 64 cohorts are projected to experience population declines.