Gregory Hills
A median age of 30 sits 10 years below the national figure, while household income ranks at the 90.8th percentile. Gregory Hills has 9,142 residents, a 96.4% separate-house share and 59.6% of homes under mortgage, giving it a young, family-led mortgage-belt profile. Its 3.2-person average household is 0.7 above the national average, partly because 58.3% of families are couples with children. Compared with nearby Narellan, the suburb has a newer growth-market feel, while 33.0% overseas-born residents and 37.6% university attainment, 7.5 percentage points above national, add cultural and professional breadth. A 6.18% annual growth trend and car travel at 57.4%, compared with 1.7% public transport use, reinforce its expansion-area character.
Population
9,142
Median Age
30.0
Household IncomeiMedian weekly household income (ABS Census)
$2,406/wk
DAs (12 months)iDevelopment Applications lodged in the past year
142
Gregory Hills suits buyers prioritising a detached family home over apartment living. Separate houses account for 96.4% of dwellings, higher than the 0.9% apartment share, and 79.4% have 4 or more bedrooms versus 16.0% with 3 bedrooms. The typical monthly mortgage figure is $2,554, while mortgage costs equal 24.5% of household income, compared with 21.6% for rent, suggesting ownership is a major budget decision even without a mortgage-stress flag. Only 8.1% own outright and 59.6% are paying a mortgage, so the buyer pool is tilted towards active borrowers. Compared with established nearby Narellan, Gregory Hills is more aligned with newer family demand, making land size, floor plan, school catchment and ongoing costs important checks.
For Buyers
Gregory Hills suits buyers prioritising a detached family home over apartment living. Separate houses account for 96.4% of dwellings, higher than the 0.9% apartment share, and 79.4% have 4 or more bedrooms versus 16.0% with 3 bedrooms. The typical monthly mortgage figure is $2,554, while mortgage costs equal 24.5% of household income, compared with 21.6% for rent, suggesting ownership is a major budget decision even without a mortgage-stress flag. Only 8.1% own outright and 59.6% are paying a mortgage, so the buyer pool is tilted towards active borrowers. Compared with established nearby Narellan, Gregory Hills is more aligned with newer family demand, making land size, floor plan, school catchment and ongoing costs important checks.
For Investors
Gregory Hills presents a growth-oriented rental case, but income returns need to be tested against the purchase price. Weekly rent is $520 and 31.9% of dwellings are rented, lower than the 59.6% mortgage share, while vacancy is 3.6%. The 6.18% annual growth trend and internal migration driver support a demand story because new households are still being drawn into the wider expansion corridor. Development activity reached 143 matters in 12 months, creating both additional services and possible future rental competition. Compared with a suburb with less active construction, investors should stress-test leasing time, incentives, maintenance and resale depth rather than rely on headline growth alone.
Development Activity
Total DAs
1,040
Last 12 Months
142
YoY ChangeiYear-over-year change in DA lodgements
+7.6%
Avg DA CostiAverage estimated cost per DA in the past year
N/A
Monthly DA Lodgements
DA Categories
Schools in Gregory Hills
Open-register school locations for education access. This is not a school-quality ranking.
Demographics
Gregory Hills has a median age of 30, 10 years below national, and an average household size of 3.2, which is 0.7 above national. Couples with children make up 58.3% of families, while one-parent families account for 13.8%, helping explain demand for 4-plus-bedroom homes. Overseas-born residents represent 33.0%, 11.4 percentage points above national, and university attainment is 37.6%, 7.5 points above national. English, Indian, Italian and Irish are among the leading ancestries, with counts of 1,716, 642, 640 and 486; Arabic is the leading listed non-English language at 194 speakers. Compared with nearby Narellan, Gregory Hills reads as a younger, family-heavy population profile, supported by 65.2% staying at the same address.
Age Distribution
Bedrooms
Dwelling Structure
96.4%
Houses
2.7%
Townhouse
0.9%
Apartment
Tenure
Housing is overwhelmingly detached and family-sized: 96.4% of dwellings are separate houses, higher than the 2.7% semi-detached and 0.9% apartment shares, while 79.4% contain 4 or more bedrooms. Tenure is concentrated among active owners, with 59.6% paying a mortgage, 31.9% renting and only 8.1% owning outright. The monthly mortgage figure is $2,554, and mortgage repayments equal 24.5% of household income, above the 21.6% rent-to-income measure but not flagged as mortgage stress. Compared with nearby Narellan, the housing profile is more strongly oriented to detached family stock, so buyers should compare lot size, age, floor plan and ongoing costs rather than apply one figure to every property. Vacancy is 3.6%, indicating some rental choice without signalling excess supply.
Mortgage / mo
$2,554
Rent / wkiMedian weekly rent for new bonds (April to June 2026), NSW Rental Bond Board (DCJ). Census 2021 median: $520.
$780
Bond data Jun 2026 · houses $780
HH Size
3.2
Personal Income / wk
$1,082
Vacancy Ratei% of dwellings unoccupied on Census night (ABS 2021)
3.6%
Unoccupied
103
Rent / IncomeiMedian rent as % of household income. Over 30% = housing stress
21.6%
Mortgage / IncomeiMedian mortgage as % of household income. Over 30% = housing stress
24.5%
Community Profile
Languages Spoken at Home
Ancestry
Household Composition
58.3%
Couples with children
27.0%
Couples, no children
13.8%
Single parent
2,513
Total families
Economy & Employment
Gregory Hills combines high household resources with a broad service and trades base. Household income sits at the 90.8th percentile, while the SEIFA deciles are IEO 7, IER 10, IRSD 8 and IRSAD 9. The IER result is higher than the IEO result, suggesting economic resources are especially strong even though education and occupation measures are less elevated. Employment is also solid: participation is 72.9%, unemployment is 3.3% and full-time employment is 62.5%. Healthcare leads local industries at 17.2%, followed by Education at 12.1%, Construction at 11.5%, Retail at 7.6% and Public Admin at 7.3%. Occupations are led by Professionals at 1,006, Clerical/Admin at 696, Trades at 605, Managers at 580 and Community/Personal roles at 491. Compared with lower-resource areas, this mix supports spending power, although construction and public-facing services can be more cyclical than professional work.
Unemployment
3.3%
Labour Force
4,771
Unemployed
158
Source: ABS Census 2021
Socio-Economic Indexes (SEIFA)iABS index ranking suburbs from 1 (most disadvantaged) to 10 (most advantaged)
Full-time
62.5%
Part-time
25.3%
Participation
72.9%
Employed
4,613
Full-time and part-time are shares of the employed. Source: ABS Census 2021
Occupations
Top Industries
University
37.6%
Postgraduate
9.9%
Born Overseas
33.0%
Dwellings
2,801
Transport to Work
Daily life is car-oriented: 57.4% travel as car drivers, compared with 1.7% using public transport and 0.9% walking or cycling. Work-from-home participation is 36.6%, which may reduce some commuting pressure, but local errands still benefit from a car. Gregory Hills Public School is a government primary school in the suburb; families should check enrolment zones because catchments can cut across suburb boundaries. Socioeconomic access is relatively strong, with IRSAD in decile 9 and IRSD in decile 8, both above the middle of the national distribution, while need for assistance is 3.4%. A suburb-wide crime rate is not stated, so current NSW Police incident data and the exact street remain important for safety checks. Compared with a transit-rich inner suburb, the trade-off is space and family housing rather than rail convenience.
Drive
57.4%
Public Transport
1.7%
Walk / Cycle
0.9%
Work from Home
36.6%
Population Forecast
+6.18%/yr
(+1,255 people/yr)
High GrowthGregory Hills is classified as high growth, with an annual trend of 6.18% and internal migration as the primary driver. The suburb has 9,142 residents today, while the wider growth pattern points to continuing expansion rather than a flat trajectory. Development activity recorded 143 matters over 12 months, consistent with a place still absorbing new homes, services and households. Compared with established nearby Narellan, this points to stronger expansion pressure, with infrastructure timing and construction volume likely to shape buyer experience. Because growth is migration-led, investors and owner-occupiers should test transport, retail and school capacity against the exact release or street rather than assume every part of Gregory Hills will change at the same pace.
Historical + Forecast
Hamilton-Perry + Holt smoothing on ERP 2001-2025
Age Cohort Forecast
Primary Driver
Internal Migration
Net Overseas / yr
+130
Net Internal / yr
+983
National Ranking iPercentile rank among ~15,000 AU suburbs. 90% = higher than 90% of suburbs
How Gregory Hills compares to ~15,000 Australian suburbs
Frequently Asked Questions
Is Gregory Hills a good suburb to live in?
Gregory Hills may suit households seeking newer detached housing, larger floor plans and a young family setting. Median age is 30, 96.4% of dwellings are separate houses and IRSAD sits in decile 9. The main trade-off versus inner areas is transport: 57.4% drive, while only 1.7% use public transport.
What is the median house price in Gregory Hills?
No current median house price can be stated without a verified sales series. The housing profile is still clear: 96.4% of dwellings are separate houses, 79.4% have 4 or more bedrooms, and weekly rent is $520. Compare recent settled sales by land size, age and bedroom count rather than applying one figure to every property.
What schools are in Gregory Hills?
Gregory Hills Public School is a government primary school in the suburb. Because 1 local school is identified, families should confirm the enrolment catchment, transport route and out-of-area options against the exact address before signing a lease or contract.
Is Gregory Hills safe?
A suburb-wide crime rate is not stated, so Gregory Hills should not be labelled safe or unsafe from housing and demographic figures alone. Check current NSW Police incidents for the exact address and time period; the suburb has 1 local school and 3.6% rental vacancy, neither of which measures crime.
Is Gregory Hills good for property investment?
Gregory Hills has investable growth signals, with $520 weekly rent, 31.9% renting, 3.6% vacancy and a 6.18% annual growth trend driven by internal migration. However, 143 development matters in 12 months may increase future competition. Confirm the purchase price, net yield, insurance, maintenance and leasing depth before proceeding.
How is Gregory Hills's population changing?
Gregory Hills has 9,142 residents today and sits in a high-growth setting. The wider annual trend is 6.18%, with internal migration the primary driver, while 143 development matters were recorded over 12 months. That combination points to continuing change through new housing and household turnover, rather than a settled low-growth pattern.
What languages are spoken in Gregory Hills?
Listed home languages include Arabic at 194 speakers, Hindi at 127, Bengali at 89, Punjabi at 69 and Samoan at 67. Overseas-born residents account for 33.0%, which is 11.4 percentage points above the national comparison. English, Indian, Italian and Irish are also leading ancestry responses.
What development is occurring in Gregory Hills?
Development activity is elevated, with 143 matters recorded over 12 months. Recent examples include a dwelling house, a child-care operating-hours modification and office alterations, indicating activity across homes and services rather than only one project type. Check each application's status, approval conditions and construction timing before relying on a proposed change.
How to read these comparisons
Phrases like "above the national average" reference the unweighted median across Australian suburbs with more than 1,000 residents, not population-weighted national figures. Suburb-level medians are more useful for ranking suburbs against each other; ABS census headlines are population-weighted (so dominated by Sydney and Melbourne) and can read very differently.
Current baseline (refreshed 2026-05-10): median age 40, university-educated 30.1%, born overseas 21.6%, average household size 2.5 people.
Data sources: ABS 2021 Census (demographics, income, tenure), state education open registers (school locations), state Crime Statistics agencies (offences), council DA portals (development applications). Population forecasts use a Hamilton-Perry cohort model calibrated to ABS ERP.
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