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2021 Census | -- people
Sales Activity
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Population
Kariong is positioned among the lower quartile of areas assessed nationally for population growth based on AreaSearch's assessment of recent, and medium term trends
As of November 2025, Kariong's population is estimated at around 6,487 people. This figure reflects an increase of 2 individuals since the 2021 Census, which reported a population of 6,485 residents. The current population is inferred from AreaSearch's validation of new addresses combined with ABS ERP data released in June 2024, indicating an estimated resident population of 6,490 for Kariong and its surrounding areas. This results in a density ratio of approximately 251 persons per square kilometer. Since the Census date, natural growth contributed about 63% to overall population gains. Comparing Kariong's growth with the broader SA3 area shows it within 2.3 percentage points, indicating competitive growth fundamentals.
Future projections anticipate lower quartile growth nationwide, with Kariong expected to increase by 2 persons to 2041 based on aggregated SA2-level projections, reflecting a total increase of 0.1% over the 17-year period.
Frequently Asked Questions - Population
Development
The level of residential development activity in Kariong is very low in comparison to the average area assessed nationally by AreaSearch
Kariong has averaged approximately 6 new dwelling approvals annually over the past 5 financial years ending June 2021, totalling an estimated 34 homes. As of July 2021, there have been 7 approvals recorded in FY-26. The area's population decline has maintained adequate housing supply relative to demand, resulting in a balanced market with diverse buyer choices. New properties are constructed at an average expected construction cost value of $495,000.
This financial year, Kariong has also seen $284,000 in commercial approvals, indicating its residential nature. Compared to Greater Sydney, Kariong records significantly lower building activity, with 73.0% fewer approvals per person than the regional average. This scarcity of new homes typically strengthens demand and prices for existing properties. Nationally, Kariong's building activity is also below average, reflecting the area's maturity and suggesting possible planning constraints. New development in Kariong consists of 67.0% detached dwellings and 33.0% attached dwellings, marking a shift from the current housing pattern of 92.0% houses. This change indicates diminishing developable land availability and responds to evolving lifestyle preferences and housing affordability needs.
As of July 2021, Kariong has an estimated population of 1178 people per dwelling approval, reflecting its quiet, low activity development environment. Future projections suggest Kariong will add 5 residents by 2041, based on the latest AreaSearch quarterly estimate. With current construction levels, housing supply is expected to adequately meet demand, creating favourable conditions for buyers while potentially enabling growth that exceeds current forecasts.
Frequently Asked Questions - Development
Infrastructure
Kariong has very high levels of nearby infrastructure activity, ranking in the top 10% nationally
Five projects are identified by AreaSearch as potentially impacting the area: Northside Private Hospital, Ocean Beach Road/Rawson Road Intersection Upgrade (scheduled for completion in 2023), Transport Oriented Development - Woy Woy Station Precinct (commenced in July 2018), and Blackwall Road Intersection Upgrades (planned for completion by mid-2024).
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Frequently Asked Questions - Infrastructure
Low and Mid-Rise Housing Policy
State-wide NSW planning reforms via amendments to the State Environmental Planning Policy to enable more diverse low and mid-rise housing (dual occupancies, terraces, townhouses, manor houses and residential flat buildings up to 6 storeys) in well-located areas within 800 m of selected train, metro and light-rail stations and town centres. Stage 1 (dual occupancies in R2 zones statewide) commenced 1 July 2024. Stage 2 (mid-rise apartments, terraces and dual occupancies near stations) commenced 28 February 2025. Expected to facilitate up to 112,000 additional homes over the next five years.
Sydney Metro
Australia's biggest public transport infrastructure program, delivering four new metro railway lines (City & Southwest, West, Western Sydney Airport, and extensions). As of December 2025, the City & Southwest line (M1) is fully operational from Chatswood to Sy1 Sydenham-Bankstown conversion is under construction with target opening 2026-2027. Sydney Metro West tunnelling is over 70% complete with all TBMs now at or past Parramatta, targeted for 2032 opening. Western Sydney Airport line civil works and station construction are progressing with services planned for airport opening in late 2026.
Mardi Water Treatment Plant Upgrade
Central Coast Council's $82.5 million upgrade of the Mardi Water Treatment Plant will increase capacity to meet growing demand and improve drinking water quality and reliability for over 210,000 residents and businesses across the Central Coast. Works include a new Dissolved Air Flotation clarifier, additional flocculation tanks, upgraded chemical dosing systems, and enhanced sludge handling facilities.
Mariyung Fleet (New Intercity Fleet)
The Mariyung Fleet is a 610-carriage double-deck electric train fleet being delivered by RailConnect NSW (UGL, Hyundai Rotem, Mitsubishi Electric Australia) for Transport for NSW. Named after the Darug word for emu, the fleet commenced passenger services on the Central Coast & Newcastle Line on 3 December 2024, followed by the Blue Mountains Line on 13 October 2025. Services on the South Coast Line are scheduled to commence in 2026. The fleet features modern amenities including spacious 2x2 seating, charging ports, improved accessibility with wheelchair spaces and accessible toilets, CCTV emergency help points, and dedicated spaces for luggage, prams and bicycles. The trains operate in flexible 4-car, 6-car, 8-car or 10-car formations. The fleet replaces aging V-set trains that entered service in the 1970s and serves approximately 26 million passenger journeys annually across the electrified intercity network. Supporting infrastructure includes the new Kangy Angy Maintenance Facility, platform extensions, and signaling upgrades at multiple stations.
Transport Oriented Development - Woy Woy Station Precinct
State Government Transport Oriented Development (TOD) program targeting Woy Woy Railway Station Precinct for increased housing supply and density up to six storeys within 400m of the train station. The planning controls commenced on 13 May 2024, allowing for residential flat buildings and shop top housing. Encourages sustainable, mixed-use development including residential, commercial, and community facilities to create vibrant, walkable communities with improved connectivity, public spaces, and urban design. Requires infrastructure upgrades including to Woy Woy Road connection to M1. Part of broader NSW TOD SEPP reform and Central Coast development strategy to address housing needs near transport hubs.
Ocean Beach Road/Rawson Road Intersection Upgrade
Major intersection upgrade replacing single lane roundabout with signalised intersection to improve traffic flow, reduce queues by 66%, and enhance safety. Part of $107.3M Central Coast Roads Package with additional funding secured in 2025. Construction recommenced following deferral, with works ongoing.
Newcastle-Sydney and Wollongong-Sydney Rail Line Upgrades
Program of upgrades to existing intercity rail corridors linking Newcastle-Central Coast-Sydney and Wollongong-Sydney to reduce travel times and improve reliability. Current scope includes timetable and service changes under the Rail Service Improvement Program, targeted network upgrades (signalling, power, station works) and the introduction of the Mariyung intercity fleet on the Central Coast & Newcastle Line, alongside Federal planning led by the High Speed Rail Authority for a dedicated Sydney-Newcastle high speed corridor.
Blackwall Road Intersection Upgrades
The NSW Government is investing $19 million in upgrades to three key intersections on the Woy Woy Peninsula: Blackwall and McMasters Road, Blackwall, Allfield and Farnell Roads, and Memorial Avenue, Barrenjoey Road and Maitland Bay Drive. The project aims to improve travel times, safety, and traffic flow for the 22,000 vehicles using the Blackwall Road corridor daily. Works commenced in July 2025 and include new traffic lights, pedestrian-activated signals, dual right-turn lanes, and improved pathways. The upgrades will future-proof the Peninsula's critical transport spine as the Central Coast continues to grow.
Employment
Kariong ranks among the top 25% of areas assessed nationally for overall employment performance
Kariong has a skilled workforce with notable representation in essential services sectors. Its unemployment rate was 2.4% as of the past year, with an estimated employment growth of 2.2%.
As of June 2025, 3691 residents were employed, and the unemployment rate was 1.8% lower than Greater Sydney's rate of 4.2%. Workforce participation in Kariong was 69.1%, compared to Greater Sydney's 60.0%. Employment is concentrated in health care & social assistance, construction, and retail trade. Health care & social assistance has particularly notable concentration, with employment levels at 1.2 times the regional average.
Conversely, professional & technical services have lower representation at 6.7% compared to the regional average of 11.5%. The area appears to offer limited local employment opportunities, as indicated by the count of Census working population versus resident population. In the period from June 2024 to July 2025, employment increased by 2.2%, while labour force increased by 2.7%, causing the unemployment rate to rise by 0.5 percentage points. This compares to Greater Sydney, where employment grew by 2.6%, labour force expanded by 2.9%, and unemployment rose by 0.3 percentage points. Jobs and Skills Australia's national employment forecasts from Sep-22 suggest potential future demand within Kariong. These projections estimate national employment growth of 6.6% over five years and 13.7% over ten years, with differing growth rates between industry sectors. Applying these projections to Kariong's employment mix suggests local employment should increase by 6.6% over five years and 13.8% over ten years.
Frequently Asked Questions - Employment
Income
The area exhibits notably strong income performance, ranking higher than 70% of areas assessed nationally through AreaSearch analysis
Kariong had a median taxpayer income of $55,157 during financial year 2022. The average income was $71,280 in the same period. These figures are higher than national averages and compare to $56,994 and $80,856 respectively for Greater Sydney. By September 2025, estimated median and average incomes would be approximately $62,112 and $80,268 respectively, based on a 12.61% increase since financial year 2022. According to the 2021 Census, Kariong's household income ranks at the 78th percentile ($2,200 weekly), while personal income is at the 59th percentile. Income analysis shows that 39.9% of the population (2,588 individuals) fall within the $1,500 - $2,999 income range, similar to the regional average of 30.9%. Housing costs consume 16.0% of income in Kariong. Despite this, disposable income ranks at the 77th percentile. The area's SEIFA income ranking places it in the 6th decile.
Frequently Asked Questions - Income
Housing
Kariong is characterized by a predominantly suburban housing profile, with ownership patterns similar to the broader region
Kariong's dwellings were 92.2% houses and 7.8% other types at the latest Census, compared to Sydney metro's 74.2% houses and 25.9% others. Home ownership in Kariong was 25.1%, with mortgages at 52.3% and rentals at 22.6%. The median monthly mortgage repayment was $2,080, lower than Sydney metro's $2,150. Median weekly rent in Kariong was $450, higher than Sydney metro's $400. Nationally, Kariong's mortgage repayments were higher at $2,080 compared to the Australian average of $1,863, and rents were substantially above the national figure of $375.
Frequently Asked Questions - Housing
Household Composition
Kariong features high concentrations of family households, with a higher-than-average median household size
Family households account for 82.9% of all households, consisting of 44.5% couples with children, 24.4% couples without children, and 13.3% single parent families. Non-family households make up the remaining 17.1%, with lone person households at 15.1% and group households comprising 2.0%. The median household size is 3.0 people, which is larger than the Greater Sydney average of 2.5.
Frequently Asked Questions - Households
Local Schools & Education
Educational outcomes in Kariong fall within the lower quartile nationally, indicating opportunities for improvement in qualification attainment
The area's university qualification rate is 20.7%, significantly lower than Greater Sydney's average of 38.0%. Bachelor degrees are the most common at 15.0%, followed by postgraduate qualifications (3.9%) and graduate diplomas (1.8%). Vocational credentials are prominent, with 41.9% of residents aged 15+ holding them, including advanced diplomas (12.7%) and certificates (29.2%). Educational participation is high at 32.2%, with 11.4% in primary education, 9.7% in secondary education, and 3.9% in tertiary education.
Kariong's five schools have a combined enrollment of 1,933 students. The area has varied educational conditions (ICSEA: 945) and functions as an education hub with 29.8 school places per 100 residents, attracting students from surrounding communities.
Frequently Asked Questions - Education
Schools Detail
Nearby Services & Amenities
Transport
Transport servicing is low compared to other areas nationally based on assessment of service frequency, route connectivity and accessibility
Transport analysis in Kariong shows 34 active public transport stops operating, all of which are bus services. These stops are served by 27 different routes that together facilitate 467 weekly passenger trips. The accessibility of these services is rated as excellent, with residents typically residing just 199 meters away from the nearest stop.
Across all routes, service frequency averages at 66 trips per day, equating to approximately 13 weekly trips per individual stop.
Frequently Asked Questions - Transport
Transport Stops Detail
Health
Kariong's residents are healthier than average in comparison to broader Australia with prevalence of common health conditions quite low among the general population though higher than the nation's average across older, at risk cohorts
Health data shows relatively positive health outcomes for Kariong residents.
The prevalence of common health conditions is quite low among the general population but higher than the national average among older and at-risk cohorts. Approximately 55% (~3,574 people) of the total population has private health cover. Mental health issues and asthma are the most common medical conditions in the area, affecting 9.3 and 8.9% of residents respectively. About 69.2% of residents declare themselves completely clear of medical ailments compared to 64.8% across Greater Sydney. The area has 12.8% (830 people) of residents aged 65 and over, which is lower than the 24.5% in Greater Sydney. Health outcomes among seniors require more attention than those for the broader population.
Frequently Asked Questions - Health
Cultural Diversity
In terms of cultural diversity, Kariong records figures broadly comparable to the national average, as found in AreaSearch's assessment of a number of language and cultural background related metrics
Kariong's population showed cultural diversity similar to the wider region: 81.0% were born in Australia, 91.2% were citizens, and 88.9% spoke English only at home. Christianity was the dominant religion, with 51.4%. Judaism, however, was slightly overrepresented at 0.2%, compared to Greater Sydney's 0.2%.
The top three ancestry groups were Australian (30.4%), English (28.4%), and Irish (7.2%). Notable differences included Russian (0.5% vs regional 0.4%), Welsh (0.7% vs 0.7%), and Lebanese (0.9% vs 0.3%).
Frequently Asked Questions - Diversity
Age
Kariong's population is slightly younger than the national pattern
Kariong's median age is nearly 36 years, close to Greater Sydney's average of 37, which is slightly below Australia's median of 38. Compared to Greater Sydney, Kariong has a higher proportion of residents aged 5-14 (14.6%) but fewer residents aged 25-34 (12.0%). Between the 2021 Census and present, the population aged 65-74 has grown from 6.4% to 7.8%, while the 5-14 age group has decreased from 15.5% to 14.6%. By 2041, demographic modeling projects significant changes in Kariong's age profile. The 75-84 cohort is expected to grow by 120%, adding 272 residents to reach 500. Residents aged 65 and above will drive all population growth, reflecting broader demographic aging trends. Conversely, the 25-34 and 0-4 age groups are projected to experience population declines.