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2021 Census | -- people
Sales Activity
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Population
Merriwa has seen population growth performance typically on par with national averages when looking at short and medium term trends
By Nov 2025, Merriwa's population is estimated at around 1,844. This reflects an increase of 19 people since the 2021 Census, which reported a population of 1,825. The growth was inferred from AreaSearch's estimate of 1,791 residents using ABS ERP data released in June 2024, along with 28 validated new addresses since the Census date. This results in a density ratio of 1.0 persons per square kilometer. Merriwa's 1.0% growth positions it within 2.3 percentage points of its SA3 area (3.3%). Natural growth contributed approximately 51.0% of overall population gains during recent periods.
AreaSearch uses ABS/Geoscience Australia projections for each SA2 area, released in 2024 with a base year of 2022. For areas not covered by this data, NSW State Government's SA2 level projections from 2022 are used, with growth rates applied to all areas for years 2032 to 2041. By 2041, the suburb is expected to grow by 192 persons, reflecting an increase of 10.4% in total over the 17-year period.
Frequently Asked Questions - Population
Development
AreaSearch assessment of residential development drivers sees a low level of activity in Merriwa, placing the area among the bottom 25% of areas assessed nationally
Merriwa has seen minimal construction activity with three new dwellings approved annually on average between 2016 and 2020 (a total of 16 approvals). This low level of development reflects the rural nature of the area, where housing needs are typically specific to local residents rather than driven by broader market demand. It is important to note that with such a small number of approvals, individual projects can significantly impact annual growth and relativity statistics.
Merriwa has substantially lower development levels compared to the rest of NSW and its development pattern is also well below national averages. All new construction in the area between 2016 and 2020 consisted of detached dwellings, with a focus on family homes suited to those seeking rural lifestyle and space. The estimated population per dwelling approval in Merriwa is 613 people, indicating its quiet, low activity development environment. According to AreaSearch's latest quarterly estimate, the population of Merriwa is forecasted to increase by 191 residents from now until 2041.
If current development rates continue, housing supply may not keep pace with population growth, potentially increasing competition among buyers and supporting stronger price growth in the area.
Frequently Asked Questions - Development
Infrastructure
Merriwa has strong levels of nearby infrastructure activity, ranking in the top 30% nationally
Area infrastructure significantly impacts performance. AreaSearch identified four major projects potentially affecting the area: Merriwa Town Centre Masterplan, Merriwa Energy Hub, Goulburn River Solar Farm And Battery, and McCullys Gap BESS.
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Frequently Asked Questions - Infrastructure
Central-West Orana Renewable Energy Zone (REZ) Transmission Project
Australia's first coordinated Renewable Energy Zone transmission project. Delivers new 500 kV and 330 kV lines, energy hubs and substations across approximately 20,000 km2 in central-west NSW. ACEREZ consortium (Acciona, Cobra, Endeavour Energy) appointed as the Network Operator for design, construction, financing, operation and maintenance over 35 years. Initial network capacity of 4.5 GW, expanding to 6 GW by 2038. Construction commenced June 2025, with staged commissioning from 2027 and full operations targeted for 2028-2029. Project reached financial close in April 2025.
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.
Merriwa Energy Hub
Maoneng Australia's 550 MWac solar farm with approximately 1.3 million panels across ~780 ha, integrated 400 MW / 1,600 MWh battery energy storage system (BESS), and new 500 kV substation connecting to Transgrid's existing transmission line. The project received SEARs in 2022 and the Development Application (SSD-30913035) together with the Environmental Impact Statement was formally lodged and placed on public exhibition from 30 October 2024 to 26 November 2024. The proposal is now under assessment by the NSW Department of Planning, Housing and Infrastructure.
Hunter Gas Pipeline
A proposed underground natural gas pipeline connecting the gas hub at Wallumbilla in Queensland to Newcastle and the Sydney market. The pipeline route passes through the Singleton local government area.
NSW Heavy Vehicle Rest Stops Program (TfNSW)
Statewide Transport for NSW program to increase and upgrade heavy vehicle rest stopping across NSW. Works include minor upgrades under the $11.9m Heavy Vehicle Rest Stop Minor Works Program (e.g. new green reflector sites and amenity/signage improvements), early works on new and upgraded formal rest areas in regional NSW, and planning and site confirmation for a major new dedicated rest area in Western Sydney. The program aims to reduce fatigue, improve safety and productivity on key freight routes, and respond to industry feedback collected since 2022.
Merriwa Town Centre Masterplan
A strategic framework adopted by Upper Hunter Shire Council to revitalise the town centre over 15+ years, aiming to create a safe, attractive, and thriving commercial and community hub.
Goulburn River Solar Farm And Battery
The Goulburn River Solar Farm, proposed by Lightsource BP, aims to construct a 520MW solar farm and a 49MW/392MWh battery 28 km south of Merriwa, including a substation for connectivity.
McCullys Gap BESS
A 400-megawatt / 1.6-gigawatt hour Battery Energy Storage System (BESS) proposed by BW ESS. The project aims to enhance energy security and support the transition to renewable energy by providing critical storage capacity. It will connect to the existing Transgrid Muswellbrook substation.
Employment
AreaSearch assessment indicates Merriwa faces employment challenges relative to the majority of Australian markets
Merriwa's workforce comprises both white and blue-collar jobs across various sectors, with an unemployment rate of 5.1% as per AreaSearch's statistical area data aggregation. As of June 2025786 residents are employed, while the unemployment rate is 1.4% higher than Rest of NSW's rate of 3.7%.
Workforce participation in Merriwa stands at 52.7%, below Rest of NSW's 56.4%. Key industries for employment among residents include agriculture, forestry & fishing, education & training, and health care & social assistance. Merriwa specialises in agriculture, forestry & fishing, with an employment share five times the regional level. Conversely, health care & social assistance has lower representation at 8.4% compared to the regional average of 16.9%.
The area may offer limited local employment opportunities, as indicated by the difference between Census working population and resident population. Between June 2024 and June 2025, Merriwa's labour force decreased by 4.8%, with employment falling by 5.5%, leading to a 0.6 percentage point rise in unemployment rate. In contrast, Rest of NSW saw an employment decline of 0.1% and labour force growth of 0.3%, with a 0.4 percentage point increase in unemployment rate. Jobs and Skills Australia's national employment forecasts from Sep-22 project overall employment growth of 6.6% over five years and 13.7% over ten years. Applying these projections to Merriwa's employment mix suggests local employment should increase by 4.7% over five years and 10.8% over ten years, though this is a simple weighting extrapolation for illustrative purposes and does not account for localised population projections.
Frequently Asked Questions - Employment
Income
Income metrics place the area in the bottom 10% of locations nationally according to AreaSearch analysis
As per AreaSearch's latest postcode level ATO data released on June 30, 2022, Merriwa's median income among taxpayers is $41,343, with an average of $58,515. This is below the national average. The median income in Rest of NSW was $49,459 and the average was $62,998 during the same period. Based on Wage Price Index growth of 12.61% since financial year 2022, current estimates for Merriwa would be approximately $46,556 (median) and $65,894 (average) as of September 2025. According to census data, household, family and personal incomes in Merriwa all fall between the 10th and 13th percentiles nationally. In income distribution, the $1,500 - 2,999 earnings band captures 27.7% of the community (510 individuals), which is similar to the broader area where this cohort represents 29.9%. Housing costs are modest with 88.0% of income retained. However, total disposable income ranks at just the 18th percentile nationally.
Frequently Asked Questions - Income
Housing
Merriwa is characterized by a predominantly suburban housing profile, with above-average rates of outright home ownership
The dwelling structure in Merriwa, as per the latest Census, consisted of 95.8% houses and 4.2% other dwellings (semi-detached, apartments, 'other' dwellings). In comparison, Non-Metro NSW had 89.7% houses and 10.3% other dwellings. The home ownership level in Merriwa was higher at 45.7%, with the remaining dwellings either mortgaged (28.0%) or rented (26.3%). The median monthly mortgage repayment in the area was $1,235, lower than Non-Metro NSW's average of $1,538. The median weekly rent figure for Merriwa was recorded at $245, compared to Non-Metro NSW's $290. Nationally, Merriwa's mortgage repayments were significantly lower than the Australian average of $1,863, while rents were substantially below the national figure of $375.
Frequently Asked Questions - Housing
Household Composition
Merriwa features high concentrations of lone person households, with a fairly typical median household size
Family households constitute 67.3% of all households, including 24.8% couples with children, 31.1% couples without children, and 10.7% single parent families. Non-family households comprise the remaining 32.7%, with lone person households at 30.4% and group households at 2.1%. The median household size is 2.4 people, which aligns with the average for the Rest of NSW.
Frequently Asked Questions - Households
Local Schools & Education
Merriwa faces educational challenges, with performance metrics placing it in the bottom quartile of areas assessed nationally
The area's university qualification rate is 13.6%, significantly lower than the NSW average of 32.2%. Bachelor degrees are the most common at 11.4%, followed by postgraduate qualifications (1.3%) and graduate diplomas (0.9%). Vocational credentials are prevalent, with 40.3% of residents aged 15+ holding such qualifications, including advanced diplomas (8.2%) and certificates (32.1%). Educational participation is high, with 30.2% of residents currently enrolled in formal education, including 13.3% in primary, 9.6% in secondary, and 2.0% in tertiary education.
The area has two schools serving 268 students: Merriwa Central School and St Joseph's Primary School. The ICSEA score for the area is 933, indicating varied educational conditions. The educational mix includes one primary school and one K-12 school.
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
Merriwa's public transport analysis shows 65 active stops operating within the area, all of which are bus services. These stops are served by eight individual routes that together offer 80 weekly passenger trips. Transport accessibility is rated as good, with residents typically located 322 meters from their nearest stop.
Service frequency averages eleven trips per day across all routes, equating to approximately one weekly trip per stop.
Frequently Asked Questions - Transport
Transport Stops Detail
Health
Health performance in Merriwa is well below average with prevalence of common health conditions notable across both younger and older age cohorts
Merriwa faces significant health challenges, as indicated by its health data. Both younger and older age groups have high prevalence rates for common health conditions. Private health cover is relatively low at approximately 50% of Merriwa's total population (~924 people), compared to 57.5% across the Rest of NSW and a national average of 55.3%.
The most prevalent medical conditions are arthritis (affecting 9.9% of residents) and asthma (9.8%). A total of 62.6% of Merriwa's residents report having no medical ailments, compared to 65.4% across the Rest of NSW. Merriwa has a higher proportion of seniors aged 65 and over at 25.9% (477 people), compared to 18.9% in the Rest of NSW. The health outcomes among seniors are broadly similar to those of the general population.
Frequently Asked Questions - Health
Cultural Diversity
The latest Census data sees Merriwa placing among the least culturally diverse areas in the country when compared across a range of language and cultural background related metrics
Merriwa's cultural diversity was found to be below average, with 88.0% of its population being citizens, born in Australia at 92.5%, and speaking English only at home at 97.9%. Christianity is the predominant religion, comprising 76.5% of Merriwa's population compared to 63.9% across Rest of NSW. The top three ancestry groups are Australian (36.8%), English (31.1%), and Irish (8.7%).
Notably, Australian Aboriginal representation is higher at 5.1% in Merriwa than the regional average of 6.6%, Scottish representation is also higher at 8.0% compared to 7.3%, and Welsh representation is slightly higher at 0.5% compared to 0.3%.
Frequently Asked Questions - Diversity
Age
Merriwa hosts an older demographic, ranking in the top quartile nationwide
Merriwa's median age is 45 years, which is slightly higher than Rest of NSW's median age of 43 and considerably older than the national norm of 38 years. Compared to the Rest of NSW average, Merriwa has a notably higher proportion of people aged 65-74 (14.0% locally) but a lower proportion of those aged 25-34 (9.6%). Between 2021 and present, the proportion of people aged 15 to 24 increased from 9.8% to 10.8%, while the proportions of those aged 55 to 64 decreased from 13.7% to 12.5% and those aged 5 to 14 dropped from 14.5% to 13.4%. By 2041, demographic modeling suggests significant changes in Merriwa's age profile. The 75 to 84 age cohort is projected to increase by 69 people (47%), from 147 to 217. Notably, the combined 65+ age groups are expected to account for 62% of total population growth, reflecting Merriwa's aging demographic trend. Conversely, population declines are projected for the 5 to 14 and 15 to 24 cohorts.