Jilliby - Yarramalong
Statistical Area - sa2

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

Jilliby - Yarramalong's population was around 3,569 as of August 2025. This reflected an increase of 149 people since the 2021 Census, which reported a population of 3,420. The change was inferred from the estimated resident population of 3,566 in June 2024 and seven validated new addresses since the Census date. The population density ratio was 10.3 persons per square kilometer. Jilliby - Yarramalong's growth of 4.4% since the 2021 Census exceeded both its SA4 region (3.1%) and SA3 area, making it a growth leader in the region. Overseas migration contributed approximately 47.2% of overall population gains during recent periods.

AreaSearch adopted ABS/Geoscience Australia projections for each SA2 area, released in 2024 with a base year of 2022. For areas not covered by this data, AreaSearch used NSW State Government's SA2 level projections released in 2022 with a base year of 2021. Growth rates by age group were applied to all areas for years 2032 to 2041. Based on projected demographic shifts, Jilliby - Yarramalong was expected to grow by 242 persons to 2041, recording a gain of 6.7% over the 17-year period.

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

Jilliby-Yarramalong recorded approximately 8 residential property approvals annually. Between FY21 and FY25, 42 homes were approved, with 1 more in FY26 so far. Over the past five financial years, each dwelling averaged 2 new residents per year, reflecting strong demand that supports property values.

New homes had an average construction cost value of $419,000, lower than regional norms, indicating more affordable housing options for purchasers. In FY26, there have been $6.2 million in commercial approvals, suggesting limited focus on commercial development. Compared to Greater Sydney, Jilliby-Yarramalong shows around 56% of the construction activity per person and ranks among the 38th percentile nationally, offering fewer choices for buyers but supporting demand for existing homes due to its mature nature and possible planning constraints. Recent building activity consists solely of detached houses, preserving the area's low density character and attracting space-seeking buyers.

As of now, there are an estimated 449 people per dwelling approval in the area. By 2041, Jilliby-Yarramalong is projected to grow by 239 residents. At current development rates, new housing supply should comfortably meet demand, providing favourable conditions for buyers and potentially supporting population growth beyond current projections.

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

The performance of an area is significantly influenced by changes to local infrastructure, major projects, and planning initiatives. AreaSearch has identified a total of 62 projects that are expected to impact the area. Notable projects include the Mardi Water Treatment Plant Upgrade, Chain Valley Bay Road Intersection Upgrade, Rosella Rise, and Central Coast Airport Upgrade, with the following list providing more detail on those deemed most relevant.

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

Employment conditions in Jilliby - Yarramalong demonstrate strong performance, ranking among the top 35% of areas assessed nationally

Jilliby - Yarramalong has a skilled workforce with notable representation in the construction sector. The unemployment rate as of June 2025 was 3.1%.

Employment growth over the past year was estimated at 2.6%. In June 2025, 1,989 residents were employed, with an unemployment rate 1.1% lower than Greater Sydney's rate of 4.2%. Workforce participation in Jilliby - Yarramalong was 65.1%, compared to Greater Sydney's 60.0%. Employment is concentrated in construction, health care & social assistance, and education & training.

Construction employment levels are at 1.6 times the regional average, while professional & technical shows lower representation at 6.7% versus the regional average of 11.5%. Over the year to June 2025, employment increased by 2.6%, labour force also increased by 2.6%, leaving unemployment broadly flat. Jobs and Skills Australia's national employment forecasts from May 2025 suggest Jilliby - Yarramalong's employment could grow by approximately 6.3% over five years and 13.0% over ten years, based on industry-specific projections.

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

AreaSearch's aggregation of latest postcode level ATO data for financial year 2022 shows Jilliby - Yarramalong had a median taxpayer income of $62,251 and an average income of $75,643. Nationally, the median was $56,994 and the average was $80,856. By September 2025, estimated incomes would be approximately $70,101 (median) and $85,182 (average), based on a 12.61% Wage Price Index growth since financial year 2022. The 2021 Census ranked household incomes at the 92nd percentile ($2,575 weekly) and personal income at the 61st percentile. Income analysis reveals that 29.5% of individuals (1,052 people) earn between $1,500 - 2,999 weekly, mirroring the region's 30.9%. Notably, 41.5% earn over $3,000 weekly, indicating affluence and potential for premium retail services. After housing costs, residents retain 87.2% of income, reflecting strong purchasing power, with the area's SEIFA income ranking in the 8th decile.

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

In Jilliby-Yarramalong, as recorded in the latest Census, 98.8% of dwellings were houses, with the remaining 1.2% being semi-detached homes, apartments, or other types. This contrasts with Sydney metro's dwelling structure, which was 83.2% houses and 16.7% other dwellings. Home ownership in Jilliby-Yarramalong stood at 42.6%, with mortgaged properties making up 48.5% and rented dwellings accounting for 8.9%. The median monthly mortgage repayment in the area was $2,600, higher than Sydney metro's average of $1,900. Median weekly rent in Jilliby-Yarramalong was $440, compared to Sydney metro's $385. Nationally, Jilliby-Yarramalong's mortgage repayments were significantly higher than the Australian average of $1,863, and rents were substantially above the national figure of $375.

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

Family households constitute 86.4% of all households, including 44.7% couples with children, 33.5% couples without children, and 8.3% single parent families. Non-family households comprise the remaining 13.6%, with lone person households at 11.6% and group households at 1.6%. The median household size is 3.1 people, larger than the Greater Sydney average of 2.5.

Educational outcomes in Jilliby - Yarramalong fall within the lower quartile nationally, indicating opportunities for improvement in qualification attainment

The area faces educational challenges, with university qualification rates at 22.1%, significantly lower than the Greater Sydney average of 38.0%. This presents both a challenge and an opportunity for targeted educational initiatives. Bachelor degrees are most common at 15.9%, followed by postgraduate qualifications (4.5%) and graduate diplomas (1.7%). Trade and technical skills are prominent, with 40.4% of residents aged 15+ holding vocational credentials - advanced diplomas (12.1%) and certificates (28.3%).

Educational participation is high at 29.8%, including 10.1% in primary education, 9.1% in secondary education, and 4.5% pursuing tertiary education. Jilliby-Yarramalong's three schools have a combined enrollment of 169 students, focusing exclusively on primary education with secondary options available in surrounding areas from 2022 onwards. Local school capacity is limited at 4.7 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

Transport analysis indicates 131 active stops in Jilliby - Yarramalong offering mixed bus services. These stops are supported by 18 routes, facilitating 150 weekly passenger trips. Transport access is rated good with residents situated an average of 301 meters from the nearest stop.

Service frequency averages 21 trips daily across all routes, equating to roughly 1 trip per week per individual stop.

Jilliby - Yarramalong's residents are healthier than average in comparison to broader Australia with prevalence of common health conditions quite low across both younger and older age cohorts

Health data indicates relatively positive outcomes for Jilliby - Yarramalong residents. The prevalence of common health conditions is quite low across both younger and older age cohorts.

The rate of private health cover is very high at approximately 57% of the total population, which consists of around 2,037 people. This compares to a rate of 49.3% across Greater Sydney. The most common medical conditions in the area are mental health issues and arthritis, impacting 8.5 and 7.8% of residents respectively. A total of 70.0% of residents declare themselves as completely clear of medical ailments, compared to 61.5% across Greater Sydney. As of 2021, the area has 20.4% of residents aged 65 and over, which amounts to around 728 people. This is lower than the 22.3% in Greater Sydney. Health outcomes among seniors are particularly strong, performing even better than the general population in health metrics.

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

Jilliby-Yarramalong showed lower cultural diversity, with 88.4% born in Australia, 92.1% being citizens, and 96.8% speaking English only at home. Christianity was the predominant religion, at 60.3%, compared to Greater Sydney's 56.2%. The top three ancestry groups were Australian (33.4%), English (31.9%), and Irish (9.0%).

Notably, Maltese, Dutch, and New Zealand groups were similarly represented or overrepresented compared to regional averages: Maltese at 0.9% vs 1.0%, Dutch at 1.4% vs 1.0%, and New Zealand at 0.7% each.

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

Jilliby - Yarramalong has a median age of 44, which exceeds Greater Sydney's figure of 37 and is substantially higher than the national norm of 38. The age group of 55-64 shows strong representation at 15.4%, compared to Greater Sydney, while the 25-34 cohort is less prevalent at 6.6%. According to the 2021 Census, the 75 to 84 age group has grown from 4.8% to 7.2% of the population, and the 15 to 24 cohort increased from 13.9% to 14.9%. Conversely, the 25 to 34 cohort declined from 7.9% to 6.6%, and the 5 to 14 group dropped from 13.7% to 12.6%. Demographic modeling suggests Jilliby - Yarramalong's age profile will evolve significantly by 2041, with the 75 to 84 group projected to grow by 65%, reaching 423 people from 256. The aging population dynamic is clear, with those aged 65 and above comprising 74% of projected growth. Meanwhile, the 25 to 34 and 0 to 4 age cohorts are expected to experience population declines.