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This analysis uses Suburbs and Localities (SAL) boundaries, which can materially differ from Statistical Areas (SA2) even when sharing the same name.
SAL boundaries are defined by Australia Post and the Australian Bureau of Statistics to represent commonly-known suburb names used in postal addresses.
Statistical Areas (SA2) are designed for census data collection and may combine multiple suburbs or use different geographic boundaries. For comprehensive analysis, consider reviewing both boundary types if available.
est. as @ -- *
2021 Census | -- people
Sales Activity
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Population
Wadalba lies within the top 10% of areas nationally in terms of population growth performance according to AreaSearch analysis of short and medium-term trends
As of May 2026, the estimated population of the suburb of Wadalba is around 4,793. This reflects a growth of 589 people since the 2021 Census, which reported a population of 4,204. AreaSearch's analysis, based on latest ERP data release by ABS (June 2025) and validated new addresses, suggests this increase is inferred from a resident population estimate of 4,756. This results in a density ratio of 1,254 persons per square kilometer, exceeding the national average assessed by AreaSearch. Wadalba's growth rate of 14.0% since the 2021 Census exceeds both its SA4 region (3.4%) and SA3 area, indicating it as a growth leader in the region. Interstate migration contributed approximately 72.0% to overall population gains during recent periods.
AreaSearch projects future growth for Wadalba based on ABS/Geoscience Australia projections released in 2024 with 2022 as the base year, and NSW State Government's SA2 level projections released in 2022 with 2021 as the base year. Exceptional growth is predicted until 2041, with an increase of 3,237 persons expected, reflecting a total increase of 66.8%.
Frequently Asked Questions - Population
Development
AreaSearch assessment of residential development activity positions Wadalba among the top 25% of areas assessed nationwide
AreaSearch analysis of ABS building approval numbers indicates Wadalba had around 36 dwelling approvals per year over the past 5 financial years to FY-25, totalling approximately 182 homes. In FY-26 so far, 31 approvals have been recorded. This translates to an average of 5.5 people moving to the area per dwelling built annually between FY-21 and FY-25. Commercial approvals in FY-26 totalled $21.2 million.
Compared to Greater Sydney, Wadalba has seen 101.0% more construction activity per person. New development consists of 84.0% detached houses and 16.0% townhouses or apartments. The area is projected to gain around 3,200 residents by 2041, with current housing supply potentially not keeping pace with population growth.
Population forecasts indicate Wadalba will gain 3,200 residents through to 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.
Frequently Asked Questions - Development
Development applications around Wadalba
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SOURCE: Planning portals and council registers, compiled by AreaSearch. Distance & bearing measured from the suburb midpoint.
Infrastructure
Wadalba has strong levels of nearby infrastructure activity, ranking in the top 40% nationally
Changes in local infrastructure significantly affect an area's performance. AreaSearch has identified two projects that could impact this region. Notable projects include Yeramba Estates Central Coast Development, Hamlyn View Estate, The Sanctuary Estate Hamlyn Terrace, and Cedarwood Estate. Below is a list detailing those most relevant.
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INFRASTRUCTURE SEARCH
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Frequently Asked Questions - Infrastructure
Mardi Water Treatment Plant Upgrade
An $82.5 million major upgrade to the Mardi Water Treatment Plant to future-proof water security for over 210,000 residents. The project introduces Dissolved Air Flotation (DAF) technology and new flocculation tanks to handle poor raw water conditions such as algal blooms and high turbidity. Key works include new chemical dosing systems, a new access road, and electrical switch rooms to ensure a reliable supply of up to 160 million litres of water per day.
Greater Warnervale Structure Plan
A long-term land use planning framework adopted by Central Coast Council in July 2024 and subsequently endorsed by the NSW Department of Planning, Housing and Infrastructure (DPHI) to guide growth across the Greater Warnervale area to 2041. Covering a 3,900 hectare study area, the plan provides a 20 year framework to support population growth from around 20,162 residents to approximately 57,000, accommodating an additional 10,130 dwellings and capacity for around 8,500 new jobs. Ten precincts are identified for staged rezoning and detailed planning, including Wyong Employment Zone with Central Coast Airport, Warnervale Village, Wallarah Residential, Warnervale Town Centre and the Charmhaven and Kanwal precincts. Two new neighbourhood centres replace the previously planned Warnervale Town Centre at full scale, following the withdrawal of the proposed North Warnervale rail station. The plan also delivers significant biodiversity protections including corridors of 50 to 100 metres minimum width and ongoing safeguards for Porters Creek Wetland, supports a network of upgraded sports and community facilities, and forms the basis for amendments to local environmental plans, development control plans and contributions plans.
Warnervale Water and Sewer Infrastructure Program
A comprehensive infrastructure program supporting the Greater Warnervale growth corridor. Key works include the $82.5 million Mardi Water Treatment Plant upgrade, which involves adding Dissolved Air Flotation (DAF) systems to increase capacity to 160 million litres per day. The program also encompasses the $144 million Charmhaven Sewage Treatment Plant upgrade and the completed 9.4km Mardi to Warnervale Pipeline to ensure long-term water security for over 210,000 residents.
Wyong Hospital Redevelopment - Stage 3
The third and final stage of the $200 million Wyong Hospital Redevelopment is now complete. This stage delivered a $6.4 million expansion of the Wyong Cancer Centre with eight new consultation rooms, a new Women's Outpatients service for antenatal clinics, and an expanded NSW Pathology laboratory. The redevelopment also includes dedicated spaces for the Nunyara Aboriginal Health Unit, the Carer Support Unit, and new modern medical workspaces to support clinical teams. While the Cancer Centre and pathology lab are operational, remaining services are set to open in a staged approach throughout early 2026.
Toukley Desalination Water Treatment Plant
A proposed seawater desalination water treatment plant adjacent to the existing Toukley Sewage Treatment Plant, being developed as a 'plan ready' drought response project under the Central Coast Water Security Plan. The current concept is a reverse osmosis facility with an initial capacity of 30 ML/day, with provision in the EIS for staged expansion up to 40 ML/day to support normal water supply if needed. The preferred design uses a direct ocean intake located around one kilometre offshore from Jenny Dixon Reserve, with the transfer pump station relocated to the desalination plant site (replacing the earlier Lakes Beach underground well concept under Budgewoi Beach) and connected by a deep tunnel bored about 25 metres below ground. Brine would be discharged via the existing Norah Head ocean outfall. Council is preparing an Environmental Impact Statement, with a community drop-in session held in August 2025 and another planned for the second quarter of 2026. The plant would only be constructed if dam storage falls below the 45 percent trigger at Mangrove Creek Dam, with construction estimated to take 3 to 4 years once activated. GHD has been appointed as the specialist consultant supporting concept design and statutory approvals.
High Speed Rail - Newcastle to Sydney (Line 1)
High Speed Rail Line 1 will connect Newcastle to Sydney on a new dedicated 194km rail line with trains capable of speeds up to 320 km/h on surface sections and 200 km/h in tunnels. Around 115km of the route will run through tunnels. The line will reduce travel time between Newcastle and Sydney to around one hour, with Central Coast trips of about 30 minutes. Six stations are proposed at central Newcastle (Broadmeadow), Lake Macquarie, the Central Coast (Gosford), Sydney Central, Parramatta and Western Sydney International Airport. Following release of the business case in early 2026, the project moved into a two-year Development Phase, with the Australian Government investing a further $230 million for design refinement, environmental and planning approvals, and corridor preservation. The first two major contract packages went to tender in 2026: Area Package 1 (around 35km of twin TBM tunnels, an underground station and associated civil works) and Trains, Systems and Systems Integration (supply of trains, design of all systems, rail depot and operations control centre). The Newcastle to Sydney section is estimated to cost around $61.2 billion by 2039, with a further $32 billion to extend to Western Sydney International Airport by 2042. The project is forecast to support up to 15,000 construction jobs annually at peak and add around $250 billion to the Australian economy over a 50-year appraisal period.
Central Coast Airport Precinct Development
The Central Coast Airport Masterplan, adopted by Central Coast Council on 25 February 2025, sets the framework for transforming the existing general aviation airfield at Warnervale into a regional general aviation, education and emergency services hub over the period 2025 to 2035. The plan retains the current 1200 metre runway length, upgrades the runway to Code 1B with the option to safeguard for future Code 2B operations, and adds night lighting to enable medevac and firefighting aircraft operations. Surrounding lands will be developed as an aviation business park supporting hangars, pilot training, aviation related manufacturing and a Bachelor of Aviation program in partnership with the University of Newcastle, with up to 90 student placements per year. Emergency services will be relocated from Arizona Road, Charmhaven, to the airport site. The Porters Creek Wetland and adjoining high value ecological areas will be protected through a Biodiversity Stewardship Agreement. Council resolved in December 2025 to proceed with the rezoning of the airport lands and surrounding wetlands, and is preparing a subdivision plan, planning proposal and Biodiversity Certification Assessment Report as the next implementation steps.
Wyong Hospital Redevelopment
The $200 million Wyong Hospital Redevelopment (completed 2021-2022) delivered a new six-storey clinical services building (Block H) with expanded emergency department, ICU, paediatrics, medical imaging (including the hospital's first MRI), additional inpatient beds, and a medical assessment unit; plus refurbishment of existing facilities adding operating theatre capacity, expanded medical day unit, transit lounge, and cancer day unit expansion. The project significantly increased healthcare capacity for the Central Coast community.
Employment
The exceptional employment performance in Wadalba places it among Australia's strongest labour markets
Wadalba has a skilled workforce with essential services sectors well represented. The unemployment rate in the area was 2.2% as of December 2025. Employment growth over the past year was estimated at 3.8%.
This figure is based on AreaSearch aggregation of statistical area data. As of December 2025, 2416 residents were employed, with an unemployment rate of 2.0%, which is below Greater Sydney's rate of 4.2%. Workforce participation in Wadalba was at the same level as Greater Sydney's 68.8%. According to Census responses, 26.8% of residents worked from home, though Covid-19 lockdown impacts should be considered.
Employment among residents is concentrated in health care & social assistance, retail trade, and construction. The area has a particular employment specialization in health care & social assistance, with an employment share of 1.4 times the regional level. Conversely, professional & technical services show lower representation at 4.0% compared to the regional average of 11.5%. The predominantly residential area appears to offer limited local employment opportunities, as indicated by the count of Census working population versus resident population. Based on AreaSearch analysis of SALM and ABS data during the year to December 2025, employment levels increased by 3.8% and labour force increased by 3.7%, leaving unemployment broadly flat. In contrast, Greater Sydney experienced employment growth of 2.2% and labour force growth of 2.3%. Jobs and Skills Australia's national employment forecasts from May-25 offer further insight into potential future demand within Wadalba. These projections suggest that national employment will expand by 6.6% over five years and 13.7% over ten years, with varying growth rates between industry sectors. Applying these industry-specific projections to Wadalba'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's income profile falls below national averages based on AreaSearch analysis
AreaSearch's latest postcode level ATO data for financial year 2023 shows Wadalba's median income among taxpayers is $50,223. The average income in the suburb is $61,022. This is lower than the national average. In Greater Sydney, the median income is $60,817 and the average is $83,003. Based on Wage Price Index growth of 10.32% since financial year 2023, current estimates suggest a median income of approximately $55,406 and an average income of $67,319 as of March 2026. Census data indicates that incomes in Wadalba cluster around the 56th percentile nationally. Income distribution shows that 37.8% of individuals (1,811 people) earn between $1,500 and $2,999, similar to regional levels where 30.9% fall into this bracket. High housing costs consume 20.8% of income in the suburb. Despite this, disposable income ranks at the 55th percentile nationally. The area's SEIFA income ranking places it in the 4th decile.
Frequently Asked Questions - Income
Housing
Wadalba is characterized by a predominantly suburban housing profile, with a higher proportion of rental properties than the broader region
Wadalba's dwelling structure, as per the latest Census, consisted of 94.3% houses and 5.7% other dwellings (semi-detached, apartments, 'other' dwellings), contrasting with Sydney metro's 55.9% houses and 44.1% other dwellings. Home ownership in Wadalba stood at 17.7%, with mortgaged dwellings at 42.3% and rented ones at 40.0%. The median monthly mortgage repayment was $2,167, lower than Sydney metro's $2,427. The median weekly rent in Wadalba was $480, slightly higher than Sydney metro's $470. Nationally, Wadalba's mortgage repayments were significantly higher at $2,167 compared to the Australian average of $1,863, while rents were substantially above the national figure of $375.
Frequently Asked Questions - Housing
Household Composition
Wadalba features high concentrations of family households, with a higher-than-average median household size
Family households constitute 79.4% of all households, including 41.2% couples with children, 19.3% couples without children, and 17.7% single parent families. Non-family households account for the remaining 20.6%, with lone person households at 17.9% and group households comprising 2.6%. The median household size is 3.0 people, which is larger than the Greater Sydney average of 2.7.
Frequently Asked Questions - Households
Local Schools & Education
Educational outcomes in Wadalba fall within the lower quartile nationally, indicating opportunities for improvement in qualification attainment
The area's university qualification rate is 17.3%, significantly lower than Greater Sydney's average of 38.0%. Bachelor degrees are the most common at 12.6%, followed by postgraduate qualifications (3.4%) and graduate diplomas (1.3%). Vocational credentials are prominent, with 41.9% of residents aged 15+ holding them, including advanced diplomas (11.7%) and certificates (30.2%). Educational participation is high at 34.1%, with 12.2% in primary education, 9.8% in secondary education, and 3.2% pursuing tertiary education.
Educational participation is notably high, with 34.1% of residents currently enrolled in formal education. This includes 12.2% in primary education, 9.8% in secondary education, and 3.2% pursuing tertiary education.
Frequently Asked Questions - Education
Schools Detail
Nearby Services & Amenities
Transport
Transport servicing is moderate compared to other areas nationally based on assessment of service frequency, route connectivity and accessibility
Wadalba has 25 active public transport stops operating within its boundaries. These stops are served by a total of 43 bus routes, which collectively facilitate 1,077 weekly passenger trips. The area's transport accessibility is rated as good, with residents typically residing approximately 202 meters from the nearest transport stop. As a predominantly residential region, most residents commute outward to other areas for work or leisure. The car remains the primary mode of transportation among residents, with 92% relying on it for their daily travels. On average, there are 1.6 vehicles per dwelling in Wadalba, which is higher than the regional average.
According to the 2021 Census, a significant portion of residents, specifically 26.8%, work from home, potentially due to COVID-19 conditions. The service frequency across all routes averages 153 trips per day, equating to approximately 43 weekly trips per individual stop.
Frequently Asked Questions - Transport
Transport Stops Detail
Health
Health performance in Wadalba is well below average with prevalence of common health conditions notable across both younger and older age cohorts
Wadalba faces significant health challenges, as indicated by AreaSearch's assessment. Mortality rates and chronic condition prevalence are substantial across both younger and older age cohorts.
Private health cover is relatively low at approximately 51% of the total population (~2,448 people), compared to 59.9% across Greater Sydney. Mental health issues affect 10.6% of residents, while asthma impacts 9.7%. Conversely, 67.9% of residents report being completely clear of medical ailments, compared to 74.6% in Greater Sydney. Working-age population health challenges are notable due to elevated chronic condition rates. The area has 10.2% of residents aged 65 and over (488 people), lower than the 15.5% in Greater Sydney. Health outcomes among seniors present some challenges, with national rankings broadly in line with the general population.
Frequently Asked Questions - Health
Cultural Diversity
In terms of cultural diversity, Wadalba records figures broadly comparable to the national average, as found in AreaSearch's assessment of a number of language and cultural background related metrics
Wadalba's cultural diversity aligns with the broader area, having 81.7% of its population born in Australia, 89.6% being citizens, and 87.1% speaking English only at home. Christianity is the predominant religion in Wadalba, practiced by 55.1%, compared to 49.2% across Greater Sydney. The top three ancestry groups are Australian (29.1%), English (28.6%), and Other (7.3%).
Notably, Maori (1.1%) and Welsh (0.7%) are overrepresented in Wadalba compared to regional averages of 0.4% each, while Maltese representation is similar at 1.0%.
Frequently Asked Questions - Diversity
Age
Wadalba hosts a very young demographic, ranking in the bottom 10% of areas nationwide
Wadalba's median age is 32 years, which is younger than Greater Sydney's average of 37 and significantly lower than Australia's national average of 38 years. Compared to Greater Sydney, Wadalba has a higher proportion of residents aged 5-14 (15.9%) but fewer residents aged 65-74 (5.9%). According to data from the 2021 Census, the proportion of residents aged 75-84 has increased from 2.6% to 3.6%. Conversely, the proportion of residents aged 5-14 has decreased from 17.0% to 15.9%. Demographic modeling indicates that Wadalba's age profile is projected to change significantly by 2041, with the strongest projected growth in the 45-54 age cohort, which is expected to increase by 91%, adding 520 residents and reaching a total of 1,096.