Balgowlah - Clontarf - Seaforth is well-off — but expensive to rent
Balgowlah - Clontarf - Seaforth 2092 · Manly, Greater Sydney, NSW
Balgowlah - Clontarf - Seaforth is among the more advantaged parts of Australia (SEIFA decile 10 of 10); well served for the everyday — 7 schools and 4 supermarkets. The trade-offs: renting is expensive, a median of $2,325 a week (DCJ, 2026-Q1); the population is barely moving.
A mix of houses and units, with a median age of 42 and households on a median $3,409 a week at the 2021 Census.
Compiled from ABS regional population (SA2), the 2021 Census, SEIFA 2021, NSW DCJ median rents, NSW DCJ median sale prices, NSW Bureau of Crime Statistics and Research reported offences, OpenStreetMap and ACARA Schools NSW / NSW Dept of Education · figures current to September 2026.
What it costs to buy
NSW DCJ Rent and Sales Report · 2025-Q4Median sale price from the NSW Department of Communities and Justice's recorded property sales. Compare year-on-year — quarter-to-quarter moves are mostly seasonal noise.
By dwelling type — 2025-Q4 quarter
| Type | Median sale price |
|---|---|
| House | $3,550,000low sample |
The median sale price across all dwellings in Balgowlah - Clontarf - Seaforth was $3,300,000, based on sales in postcode 2092, for the 2025-Q4 quarter. That is $2,100,000 above the Greater Sydney median. By type: a house $3,550,000.
This is the median price of properties recorded as sold this quarter — settlement can lag a purchase decision by weeks, so the most recent quarter can revise slightly as more sales are recorded.
Show every quarter, with the year-on-year change
| Quarter | Median price | Year on year | Greater Sydney |
|---|---|---|---|
| 2025-Q4 | $3,300,000 | — | $1,200,000 |
Sale price data © NSW Department of Communities and Justice, Rent and Sales Report, based on sales in postcode 2092, December 2025 release. Figures are the median for properties sold in the quarter. DCJ suppresses a median where too few properties sold.
What it costs to rent
NSW DCJ Rent and Sales Report · 2026-Q1Median weekly rent for new tenancies, from the NSW Department of Communities and Justice's bond lodgements. Compare year-on-year — quarter-to-quarter moves are mostly seasonal noise.
The median weekly rent across all dwellings in Balgowlah - Clontarf - Seaforth was $2,325, based on new bonds lodged in postcode 2092, for the 2026-Q1 quarter. That is $1,545 a week above the Greater Sydney median.
This is the median rent on new leases signed this quarter, not what existing tenants pay. It usually runs higher than the Census figure.
Show every quarter, with the year-on-year change
| Quarter | Median rent | Year on year | Greater Sydney |
|---|---|---|---|
| 2026-Q1 | $2,325 | — | $930 |
Rent data © NSW Department of Communities and Justice, Rent and Sales Report, based on new bonds in postcode 2092, March 2026 release. Figures are the median for new bonds lodged in the quarter, not all tenancies. DCJ suppresses a median where too few bonds were lodged.
Balgowlah - Clontarf - Seaforth on the map
The Australian Bureau of Statistics Statistical Area 2 outline for Balgowlah - Clontarf - Seaforth, NSW.
Map tiles © OpenStreetMap contributors. Boundary: ABS SA2 (ASGS 2021), simplified — an SA2 can differ from the gazetted suburb, and detached parts such as islands may not all be shown.
How the population has changed
Balgowlah - Clontarf - Seaforth against the New South Wales average, both set to 100 in the first year shown so the growth rates compare.
Balgowlah - Clontarf - Seaforth population grew from 21,140 in 2016 to 20,936 in 2025, a change of -1.0% over the period, against the New South Wales average.
Show the data table
| Year | Balgowlah - Clontarf - Seaforth | New South Wales average |
|---|---|---|
| 2016 | 21,140 | 7,732,858 |
| 2017 | 21,247 | 7,855,316 |
| 2018 | 21,280 | 7,954,476 |
| 2019 | 21,195 | 8,046,748 |
| 2020 | 21,107 | 8,110,610 |
| 2021 | 20,858 | 8,097,062 |
| 2022 | 20,598 | 8,182,098 |
| 2023 | 20,887 | 8,356,387 |
| 2024 | 20,928 | 8,492,050 |
| 2025 | 20,936 | 8,592,524 |
Where the growth is coming from
Balgowlah - Clontarf - Seaforth gained 1,260 residents from internal migration and 587 from overseas in the year to June 2025, while 1,913 people moved away — a net addition of -66 before natural increase.
- Internal migration in+1,260
- Internal migration out+1,524
- Overseas migration in+587
- Natural increase+74
Components of population change over the sample year. Natural increase is shown apart from migration so the two are not read as one figure.
How it has changed
Census · five-yearlyThe 2016 Census against 2021. Older figures are mapped onto today's boundaries via the ABS Time Series Profile, so comparisons are approximate where borders moved.
| Measure | 2016 | 2021 | Change |
|---|---|---|---|
| Population | 20,188 | 20,732 | +2.7% |
| Median age | 40 | 42 | +2 yrs |
| Median household income | $2,803/wk | $3,409/wk | +22% |
| Median weekly rent | $630/wk | $697/wk | +11% |
| Born overseas | 32.7% | 32.9% | +0.2 pts |
Who lives here
Census · five-yearlyFrom the 2021 Census — the most recent available; 2026 Census data isn't expected until mid-2027. Each figure carries its definition, so you know what is being counted.
People
Income
Housing
Work
Household
Country of birth
Language at home
How homes are held
- Owned outright 39.3%
- Mortgaged 38.0%
- Rented 21.0%
- Other / not stated 1.7%
How well-off the area is
Census · five-yearlyThe ABS SEIFA indexes rank every area by relative advantage and disadvantage. Decile 1 is the lowest tenth of Australia; decile 10 is the highest.
- Relative disadvantage (IRSD)Lower decile means more relative disadvantageDecile 10score 1,114
- Advantage & disadvantage (IRSAD)Higher decile means more relative advantageDecile 10score 1,172
- Economic resources (IER)Income and housing capacityDecile 10score 1,127
- Education & occupation (IEO)Education and occupational skill levelsDecile 10score 1,165
Safety context
NSW BOCSAR · June 2026How much crime is reported in Balgowlah - Clontarf - Seaforth, from the NSW Bureau of Crime Statistics and Research (BOCSAR).
Most-reported offences · Balgowlah - Clontarf - Seaforth, last 12 months
- Intimidation, stalking and harassment186 /100k−40% vs Greater Sydney↑ 26%
- Malicious damage to property177 /100k−38% vs Greater Sydney↓ 29%
- Theft143 /100k+272% vs Greater Sydney↓ 0%
- Assault105 /100k+99% vs Greater Sydney↓ 29%
- Drug offences53 /100k+221% vs Greater Sydney↑ 10%
- Robbery10 /100k+236% vs Greater Sydney↓ 0%
Rate per 100,000 people in Balgowlah - Clontarf - Seaforth; the arrow compares the last 12 months with the 12 before.
Of these categories, intimidation, stalking and harassment is reported most in Balgowlah - Clontarf - Seaforth over the last 12 months, running 40% below the Greater Sydney rate and up on the year before.
Show the data table
| Offence category | Suburb | Greater Sydney | Change |
|---|---|---|---|
| Intimidation, stalking and harassment | 186 per 100k | 312 per 100k | ↑ 26% vs prior year |
| Malicious damage to property | 177 per 100k | 287 per 100k | ↓ 29% vs prior year |
| Theft | 143 per 100k | 38 per 100k | ↑ 0% vs prior year |
| Assault | 105 per 100k | 53 per 100k | ↓ 29% vs prior year |
| Drug offences | 53 per 100k | 16 per 100k | ↑ 10% vs prior year |
| Robbery | 10 per 100k | 3 per 100k | ↑ 0% vs prior year |
Crime statistics © State of New South Wales (NSW Bureau of Crime Statistics and Research), used under CC BY 4.0, updated June 2026. Matched to this suburb from BOCSAR’s own locality-level data — see the safest/highest-crime rankings’ methodology for the locality-to-suburb matching used. Monthly counts are volatile — the 12-month figures above smooth that noise.
Getting around, and what's nearby
OpenStreetMap · quarterlyWhat OpenStreetMap records inside the suburb boundary. Counts reflect what is tagged in OSM and can undercount a real but less-mapped area. The park count here is OpenStreetMap green space of any kind, including privately held land — it is a different measure from the council parks below.
Within the Balgowlah - Clontarf - Seaforth SA2, OpenStreetMap records 7 schools, 8 childcare and kindergarten centres, 6 GP or clinic locations, 4 supermarkets and 18 green spaces. For families: 1 library and 11 playgrounds. Eating out and socialising: 19 cafés and 13 restaurants. Staying active: 1 gym and 53 sports fields. Also 3 shopping centres. The nearest train station, St Leonards, is about 6,150 m from the suburb centre. OpenStreetMap also maps 129 bus stops here.
List every mapped place
Schools
- Northern Beaches Secondary College Balgowlah Boys Campus
- St Cecilia’s Catholic Primary School Balhowlah
- Seaforth Public School
- Balgowlah Heights Public School
- Manly West Public School
Childcare & kindergartens
- Ethel Street Preschool
- Seaforth Kindergarten
- Balgowlah Preschool
- Seaforth Childcare centre
- Little Dove
Libraries
- Seaforth Library
Shopping centres
- The Village - Balgowlah Stockland
- Harvey Norman
- Bing Lee
GPs & clinics
- Balgowlah Family Practice
- Australian Skin Cancer Clinics
- Hypoxi Balgowlah
- Seaforth Child Youth and Family Health Centre
- Kids Plan-It
Supermarkets
- Balgowlah Heights IGA
- Coles
- Woolworths
Green spaces
- Ross Street Reserve
- Brimebecon Park
- Ellerys Punt Reserve
- Clontarf Reserve
- North Harbour Reserve
- Nanbaree Reserve
- Bareena Park
- Sangrado Reserve
Schools
Every open NSW school whose campus sits inside the SA2 boundary, with the average ICSEA across them. Open a school for its own ICSEA, student background and a link to My School.
The Balgowlah - Clontarf - Seaforth SA2 contains 5 schools — 4 primary schools and 1 secondary school, of which 4 are government and 1 non-government. Its schools with a published ICSEA average 1154 (1000 is the national average); each school's own figure and student background are on its page. NAPLAN results for each school are on its My School profile (ACARA). For area context, Balgowlah - Clontarf - Seaforth sits in decile 10 of the ABS SEIFA index of education and occupation nationally and 85% of adults here completed Year 12 (Census 2021).
The centre of this SA2 is zoned for Balgowlah Heights Public School (primary).
Parts of this SA2 also fall in the catchment of Manly West Public School (primary), Seaforth Public School (primary), Manly Vale Public School (primary), Balgowlah North Public School (primary).
Catchments can divide a suburb — confirm your address on EdMap.
Want another suburb? Search the catchment finder.
Show school list
- Balgowlah Heights Public School · State
- Manly West Public School · State
- Seaforth Public School · State
- St Cecilia's Catholic Primary School · Non-Government
School list: NSW Government open data — ACARA Schools NSW, via the NSW data portal, CC BY 4.0. Catchments: NSW Department of Education “School intake zones” dataset, CC BY 4.0. ICSEA: ACARA School Profile. NAPLAN: myschool.edu.au (ACARA).
Nearby, in Manly
Others in the same ABS district, by population growth. If this one doesn't fit, one of these might.
- HereBalgowlah - Clontarf - Seaforth+0.0%
- 01Manly - Fairlight+1.0%
Dots place each suburb's growth on the same scale, slowest at left.
Balgowlah - Clontarf - Seaforth: common questions
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