Kogarah Bay
Household incomes sit at the 92.6th percentile nationally, giving Kogarah Bay a stronger financial profile than many suburbs. Its median age of 44 is 4 years above the national figure, while 33.8% of residents were born overseas, 12.2 percentage points above the national comparison. Housing is overwhelmingly detached, with separate houses accounting for 95.1% of dwellings. With 2,102 residents across only 0.66 square kilometres, it is compact but family-oriented. Compared with nearby Kogarah and Sans Souci, its identity is more closely tied to detached housing and established households because 46.5% of homes are owned outright and 38.8% have a mortgage.
Local council: Georges River
Population
2,102
Median Age
44.0
Household IncomeiMedian weekly household income (ABS Census)
$2,528/wk
DAs (12 months)iDevelopment Applications lodged in the past year
19
Kogarah Bay suits buyers seeking a conventional family home rather than apartment-led housing. Separate houses account for 95.1% of dwellings, compared with only 0.9% apartments and 4.0% semi-detached homes. Larger floorplans are common: 54.6% of occupied dwellings have 4 or more bedrooms and 36.8% have 3 bedrooms. The typical monthly mortgage repayment is $2,963, while weekly rent is $650. Mortgage repayments equal 27.1% of household income, higher than the 25.7% rent-to-income measure, so borrowing capacity remains important even in a relatively affluent suburb. Ownership is established, with 46.5% of homes owned outright and 38.8% mortgaged. Compared with more apartment-oriented parts of nearby Kogarah, buyers are mainly paying for land, dwelling size and a settled residential setting.
For Buyers
Kogarah Bay suits buyers seeking a conventional family home rather than apartment-led housing. Separate houses account for 95.1% of dwellings, compared with only 0.9% apartments and 4.0% semi-detached homes. Larger floorplans are common: 54.6% of occupied dwellings have 4 or more bedrooms and 36.8% have 3 bedrooms. The typical monthly mortgage repayment is $2,963, while weekly rent is $650. Mortgage repayments equal 27.1% of household income, higher than the 25.7% rent-to-income measure, so borrowing capacity remains important even in a relatively affluent suburb. Ownership is established, with 46.5% of homes owned outright and 38.8% mortgaged. Compared with more apartment-oriented parts of nearby Kogarah, buyers are mainly paying for land, dwelling size and a settled residential setting.
For Investors
The rental market is relatively small, with 13.7% of households renting compared with 46.5% owning outright and 38.8% paying a mortgage. A weekly rent of $650 and a vacancy rate of 4.7% provide useful markers for assessing holding costs and leasing conditions, although the limited rental share may produce a narrower tenant pool than in denser nearby suburbs. The 95.1% separate-house proportion supports a family-house investment strategy rather than a unit-focused one. Twenty development matters were recorded over 12 months, including subdivision, demolition, new dwelling and renovation activity, which may gradually refresh the housing stock. An annual growth trend of 2.15%, driven primarily by overseas migration, is supportive of demand. However, investors should compare purchase costs closely with achievable rent because established detached homes can require more capital than apartments.
Development Activity
Total DAs
145
Last 12 Months
19
YoY ChangeiYear-over-year change in DA lodgements
-32.1%
Avg DA CostiAverage estimated cost per DA in the past year
N/A
Monthly DA Lodgements
DA Categories
Demographics
Kogarah Bay has an older household profile than the national average: the median age is 44, or 4 years above the national comparison. Average household size is 3.1 people, 0.6 higher than nationally, and couples with children account for 52.8% of families, helping explain the strong demand for 3 and 4-plus-bedroom homes. The suburb is also more internationally connected than the national benchmark, with 33.8% of residents born overseas, 12.2 percentage points above the national figure. Greek ancestry is the largest recorded group at 398 people, followed by English at 299, Chinese at 228 and Italian at 194. Greek is spoken by 130 residents, while Arabic, Macedonian, Cantonese and Mandarin are also represented. Residential stability is high: 83.1% stayed at the same address, compared with a 16.9% turnover rate. Compared with nearby Kogarah, Kogarah Bay presents as older and more settled, with family households shaping its daily character.
Age Distribution
Bedrooms
Dwelling Structure
95.1%
Houses
4.0%
Townhouse
0.9%
Apartment
Tenure
The housing pattern is unusually detached for a compact Sydney suburb. Separate houses make up 95.1% of dwellings, while semi-detached homes account for 4.0% and apartments only 0.9%. This form explains why 54.6% of dwellings contain 4 or more bedrooms and another 36.8% contain 3 bedrooms. Tenure is weighted toward ownership: 46.5% of homes are owned outright and 38.8% are being purchased, together far higher than the 13.7% renting share. The typical mortgage repayment is $2,963 per month, compared with weekly rent of $650. Mortgage costs represent 27.1% of household income, higher than the 25.7% rent-to-income figure, but neither measure is flagged as housing stress. Compared with nearby Kogarah's more apartment-oriented housing environment, Kogarah Bay offers a lower-density, larger-home profile, although the 3,161.9 people per square kilometre density remains high because the suburb covers just 0.66 square kilometres.
Mortgage / mo
$2,963
Rent / wkiMedian weekly rent for new bonds (April to June 2026), NSW Rental Bond Board (DCJ). Census 2021 median: $650.
$750
Bond data Jun 2026 · houses $900 · units $700
HH Size
3.1
Personal Income / wk
$837
Vacancy Ratei% of dwellings unoccupied on Census night (ABS 2021)
4.7%
Unoccupied
33
Rent / IncomeiMedian rent as % of household income. Over 30% = housing stress
25.7%
Mortgage / IncomeiMedian mortgage as % of household income. Over 30% = housing stress
27.1%
Community Profile
Languages Spoken at Home
Ancestry
Household Composition
52.8%
Couples with children
31.8%
Couples, no children
12.8%
Single parent
595
Total families
Economy & Employment
Kogarah Bay combines high household earnings with a professional and service-based employment base. Weekly household income is $2,528, placing the suburb at the 92.6th percentile, while the largest industries are healthcare at 14.8% or 104 workers, professional and technical services at 12.8% or 90, education at 10.0% or 70, finance at 9.8% or 69, and construction at 8.8% or 62. The occupational mix is led by professionals at 280 people, clerical and administrative workers at 185, managers at 179, sales workers at 104 and trades at 92. Unemployment is 3.8%, below what would be expected in a weaker labour market, with a 58.1% participation rate and 54.1% full-time employment rate. Socioeconomic measures are uneven: IEO is in decile 8 and IRSAD in decile 7, both above IRSD and IER at decile 5. That contrast points to strong education, occupation and income outcomes alongside more mixed disadvantage indicators. Healthcare, professional services and finance help underpin the suburb's higher-than-average income position.
Unemployment
3.8%
Labour Force
1,023
Unemployed
39
Source: ABS Census 2021
Socio-Economic Indexes (SEIFA)iABS index ranking suburbs from 1 (most disadvantaged) to 10 (most advantaged)
Full-time
54.1%
Part-time
30.4%
Participation
58.1%
Employed
984
Full-time and part-time are shares of the employed. Source: ABS Census 2021
Occupations
Top Industries
University
46.5%
Postgraduate
12.7%
Born Overseas
33.8%
Dwellings
674
Transport to Work
Kogarah Bay provides a compact residential setting with a strong work-from-home pattern. Half of residents, 50.3%, work from home, far higher than the 2.0% who report public transport as their main travel mode. Driving remains the leading recorded option at 43.4%, higher than walking or cycling at 1.1%, suggesting that daily convenience is shaped more by private vehicles and home-based work than by active transport. The suburb's 3,161.9 people per square kilometre density makes local access important, while its 0.66 square kilometre footprint keeps the residential area concentrated. Families should check school enrolment zones against the exact address and confirm current sector and year-level options before committing, because school access can vary across boundaries. Socioeconomic conditions are mixed but generally solid: IRSAD sits in decile 7, above IRSD in decile 5, and IEO reaches decile 8. No crime rate is stated, so current street-level safety information should be checked before renting or buying.
Drive
43.4%
Public Transport
2.0%
Walk / Cycle
1.1%
Work from Home
50.3%
Growth Outlook
Kogarah Bay has an established profile but continues to record positive momentum. The annual growth trend is 2.15%, with overseas migration identified as the primary driver. Across the wider area, population change runs at 35.8% over 10 years, while the trajectory is classified as Mixed rather than uniformly accelerating. Gentrification is at an Active stage, with a score of 42, and the related shift measure records a score of 45. This pattern reflects a suburb where established detached housing is being renewed without a complete change in identity. Rent growth of 25.4% has increased pressure on tenants, although real income growth of 26.2% has moved in the opposite direction. Affordability improved from 63.5 in 2011 to 51.3 in 2021, so the direction is described as improving even though the later score is lower. Growth is likely to remain linked to migration and housing turnover because the area has limited land, high density and 20 recent development matters.
Population trend: Georges River council area
Kogarah Bay sits in the Georges River council area. These are the council area's residents, not Kogarah Bay's.
Residents 2025
163,919
Growth, 5 yr average
+1.0%/yr
2020 to 2025
Growth, last year
+1.4%
2024 to 2025
ABS Estimated Resident Population by LGA, 30 June each year; council area, not this suburb
National Ranking iPercentile rank among ~15,000 AU suburbs. 90% = higher than 90% of suburbs
How Kogarah Bay compares to ~15,000 Australian suburbs
Frequently Asked Questions
Is Kogarah Bay a good suburb to live in?
Kogarah Bay may suit households wanting established detached housing, larger floorplans and a settled environment. Separate houses make up 95.1% of dwellings, the median age is 44, and 50.3% of residents work from home. Buyers should weigh those strengths against a compact 0.66 square kilometre footprint and density of 3,161.9 people per square kilometre.
What is the median house price in Kogarah Bay?
Check recent settled sales for the current median house price, especially because 95.1% of dwellings are separate houses and 54.6% contain 4 or more bedrooms. The typical mortgage repayment is $2,963 per month, while weekly rent is $650, so affordability should be tested against both dwelling price and household income.
What schools are in Kogarah Bay?
Check the exact address with the relevant enrolment authority for current local school options, catchments and sector availability. Kogarah Bay has an average household size of 3.1 people and couples with children represent 52.8% of families, so school access can materially affect a household's buying or renting decision.
Is Kogarah Bay safe?
Review current police and council information for street-level safety conditions before renting or buying. Kogarah Bay has 2,102 residents and a density of 3,161.9 people per square kilometre, so local conditions and activity can differ across a compact area. A property inspection at different times of day is also sensible.
Is Kogarah Bay good for property investment?
Kogarah Bay may appeal to investors targeting detached family housing, with 95.1% separate houses, weekly rent of $650 and a 4.7% vacancy rate. The rental share is 13.7%, lower than outright ownership at 46.5%, and 20 recent development matters indicate ongoing housing turnover. Compare purchase costs carefully with achievable rent.
How is Kogarah Bay's population changing?
Growth is positive but mixed. The annual trend is 2.15%, overseas migration is the primary driver, and population change across the wider area is 35.8% over 10 years. Gentrification is classified as Active with a score of 42, while the related shift score is 45, indicating continued change alongside an established housing base.
What languages are spoken in Kogarah Bay?
Greek is the most common listed language, spoken by 130 residents, followed by Arabic at 61, Macedonian at 49, Cantonese at 47 and Mandarin at 34. Overall, 33.8% of residents were born overseas, which is 12.2 percentage points above the national comparison and contributes to the suburb's strong international connections.
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).
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