Harrington Park
Household income at the 97.3 percentile nationally makes Harrington Park one of the wealthiest suburbs in the Macarthur region, yet it sits 50km from the Sydney CBD in what was farmland two decades ago. The 92.8% four-plus bedroom share is extraordinary, higher than almost any suburb in NSW, and reflects a master-planned estate built entirely for large families. The 1.6% vacancy rate is one of the tightest in south-west Sydney, consistent with 61.2% mortgage holders actively residing in their purchases. Despite population growing 47.2% over the past decade, the median age of 35 and IER decile 10 reading (top 10% nationally on economic resources) confirm that arrivals are high-earning families, not first-home-buyer price refugees.
Population
13,332
Median Age
35.0
Household IncomeiMedian weekly household income (ABS Census)
$3,014/wk
DAs (12 months)iDevelopment Applications lodged in the past year
75
Median House
$1.5M
2024-2025 (PSI derived)
The median house price of $1,458,750 (PSI derived 2024-2025) rose 6.4% from $1,419,500 in 2024 to $1,510,000 in 2025, continuing an upward trajectory. Detached houses account for 98.0% of stock, with virtually no alternatives. The 92.8% four-plus bedroom share is the defining housing feature, meaning buyers are purchasing large family homes by default. Monthly mortgage repayments of $2,708 produce a mortgage-to-income ratio of just 20.7%, well below the 30% stress threshold, because household incomes at the 97.3 percentile are high enough to absorb the payments. The IRSAD decile 9 and IER decile 10 readings confirm a suburb in the top tier nationally on advantage and economic resources. The IEO decile 7 is comparatively lower, suggesting incomes derive more from business and management roles than from university credentials.
For Buyers
The median house price of $1,458,750 (PSI derived 2024-2025) rose 6.4% from $1,419,500 in 2024 to $1,510,000 in 2025, continuing an upward trajectory. Detached houses account for 98.0% of stock, with virtually no alternatives. The 92.8% four-plus bedroom share is the defining housing feature, meaning buyers are purchasing large family homes by default. Monthly mortgage repayments of $2,708 produce a mortgage-to-income ratio of just 20.7%, well below the 30% stress threshold, because household incomes at the 97.3 percentile are high enough to absorb the payments. The IRSAD decile 9 and IER decile 10 readings confirm a suburb in the top tier nationally on advantage and economic resources. The IEO decile 7 is comparatively lower, suggesting incomes derive more from business and management roles than from university credentials.
For Investors
Only 13.1% of households rent, one of the lowest renter shares in the Macarthur region, producing a very thin tenant pool. Median weekly rent of $550 against a $1,458,750 median price delivers a gross yield of just 2.0%, below most investor thresholds. The 1.6% vacancy rate is exceptionally tight, but the small rental pool means this reflects scarcity rather than strong demand. 69 development applications in 12 months include dwelling houses and swimming pools, typical of mature estate maintenance rather than new supply. Net internal migration is negative at 118 persons per year, partly offset by 73 overseas arrivals, indicating some family turnover as children leave home. The gentrification score of 3 confirms this is already an affluent suburb, not one undergoing change.
Development Activity
Total DAs
445
Last 12 Months
75
YoY ChangeiYear-over-year change in DA lodgements
+36.4%
Avg DA CostiAverage estimated cost per DA in the past year
N/A
Monthly DA Lodgements
DA Categories
Schools in Harrington Park iICSEA: school advantage index. 1000 = national avg, higher = more advantaged
Harrington Park Public School
K-6 · 731 students
Demographics
English ancestry leads at 3,986, but Italian heritage (1,442) is the third-largest group, reflecting south-west Sydney's established Mediterranean community. Irish (1,084) and Scottish (894) round out the Anglo-Celtic core. The 20.6% overseas-born share sits roughly 1 percentage point below the national average. University qualifications at 31.9% are 1.8 points above national, consistent with the IEO decile 7 reading. The median age of 35 runs 5 years below the national figure, reflecting families with school-age children. The average household size of 3.5 is a full point above the national 2.5, the highest in the region. Couples with children (6,554) outnumber couples without (1,774) by nearly 4 to 1. Christianity accounts for 8,908 residents, with Islam (578) and Hinduism (224) notable minorities.
Age Distribution
Bedrooms
Dwelling Structure
98.0%
Houses
1.7%
Townhouse
0.3%
Apartment
Tenure
Tenure shows 25.7% own outright, 61.2% hold mortgages and 13.1% rent. The 61.2% mortgage share is one of the highest in south-west Sydney, reflecting relatively recent purchases with large loans on premium housing. The 98.0% detached house share and 92.8% four-plus bedroom stock create an almost uniform housing fabric. Two-bedroom (1.0%) and three-bedroom (5.5%) homes are nearly absent. Prices rose from $1,419,500 to $1,510,000 between 2024 and 2025, a 6.4% annual gain. The price-to-annual-household-income ratio sits at approximately 9.3 times, elevated but manageable for households at the 97.3 income percentile. Semi-detached (1.7%) and apartments (0.3%) are negligible.
Median House Price Trend
Source: State Valuer-General
Mortgage / mo
$2,708
Rent / wk
$550
HH Size
3.5
Personal Income / wk
$1,014
Vacancy Ratei% of dwellings unoccupied on Census night (ABS 2021)
1.6%
Unoccupied
63
Rent / IncomeiMedian rent as % of household income. Over 30% = housing stress
18.2%
Mortgage / IncomeiMedian mortgage as % of household income. Over 30% = housing stress
20.7%
Community Profile
Languages Spoken at Home
Ancestry
Household Composition
14.3%
Couples, no children
12,406
Total families
Economy & Employment
Education leads at 14.2% (642 workers), with Construction close at 13.8% and Healthcare at 13.5%. The balanced spread across three sectors differentiates Harrington Park from single-industry suburbs. Public Administration at 8.3% and Professional/Technical at 7.9% complete the top five. Professionals (1,408) and Managers (1,206) are the two largest occupational groups, with Clerical/Admin (1,129) third. The 3.0% unemployment rate sits below the national average, and the 67.0% full-time rate reflects dual-income family households. The IRSAD decile 9 and IER decile 10 readings place the suburb among Australia's most economically advantaged. The IEO decile 7 versus IER decile 10 gap of 3 deciles shows incomes significantly outpace educational credentials, typical of business-owner and trades-management suburbs.
Unemployment
1.5%
Labour Force
7,595
Unemployed
116
Quarterly Trend
Source: SALM Dec-25
Socio-Economic Indexes (SEIFA)iABS index ranking suburbs from 1 (most disadvantaged) to 10 (most advantaged)
Full-time
67.0%
Part-time
30.0%
Participation
62.4%
Employed
6,100
Occupations
Top Industries
University
31.9%
Postgraduate
8.5%
Born Overseas
20.6%
Dwellings
3,775
Transport to Work
Car dependence is extreme at 91.8%, with only 1.0% using public transport and 0.9% walking or cycling, reflecting the outer-suburban estate layout with no nearby train station. Harrington Park Public School (Government primary, ICSEA 1,035, 731 students) is the sole school within the suburb boundary, sitting above the national 1,000 benchmark. The 3.9% need-for-assistance rate is below the national average, consistent with the young, high-income demographic. The IRSD decile 9 reading confirms low relative disadvantage. The rent-to-income ratio of 18.2% and mortgage-to-income of 20.7% both sit well below stress thresholds.
Drive
91.8%
Public Transport
1.0%
Walk / Cycle
0.9%
Work from Home
N/A
Population Forecast
+2.27%/yr
(+258 people/yr)
EstablishedPopulation grew 47.2% over the past decade, among the highest growth rates in the Macarthur region, reflecting the staged release of master-planned lots. Trend growth runs at 2.27% annually, adding 258 persons per year. Medium projections forecast 13,632 by 2031 from 12,343 in 2026. Despite the rapid growth, net internal migration is negative at 118 persons per year, suggesting some families are leaving as children age out, while overseas migration (73 per year) continues to bring new families. The senior share grew 3.5 points and the young share dropped 5.0 points, an aging trajectory consistent with the estate maturing. Affordability improved from 61.0% mortgage-to-income in 2011 to 56.5% in 2021.
Historical + Forecast
Hamilton-Perry + Holt smoothing on ERP 2001-2025
Age Cohort Forecast
Primary Driver
Overseas Migration
Net Overseas / yr
+73
Net Internal / yr
-118
Gentrification Signal
Not gentrifying
Population +45% since 2011, Net internal outflow -118/yr
National Ranking iPercentile rank among ~15,000 AU suburbs. 90% = higher than 90% of suburbs
How Harrington Park compares to ~15,000 Australian suburbs
Frequently Asked Questions
Is Harrington Park a good suburb to live in?
Harrington Park suits high-income families wanting large detached homes in a master-planned estate. Household income at the 97.3 percentile, IRSAD decile 9, and a mortgage-to-income ratio of 20.7% indicate strong financial comfort. Trade-offs include 91.8% car dependence, no train station, and only 1 school within the suburb. The 1.6% vacancy rate and 98.0% detached housing create a stable, uniform residential environment.
What is the median house price in Harrington Park?
The median house price is $1,458,750 (PSI derived 2024-2025), up 6.4% from $1,419,500 in 2024 to $1,510,000 in 2025. Monthly mortgage repayments of $2,708 produce a 20.7% mortgage-to-income ratio, below the stress threshold. Weekly rent averages $550. At the 97.3 income percentile, local households earn among the top 3% nationally, supporting the premium pricing.
What schools are in Harrington Park?
Harrington Park has 1 school: Harrington Park Public School (Government primary, ICSEA 1,035, 731 students), sitting above the national benchmark of 1,000. Secondary students travel to nearby Narellan or Camden. The IEO decile 7 reading for the area suggests above-average educational attainment among adult residents, supporting school performance outcomes.
Is Harrington Park safe?
No suburb-level crime data is available. The IRSD decile 9 reading places Harrington Park in the least disadvantaged 20% nationally, a strong correlate of low crime. The 1.6% vacancy rate, 86.9% home ownership (outright plus mortgage) and 3.0% unemployment rate are all positive indicators. Buyers should check NSW BOCSAR for Camden LGA figures.
Is Harrington Park good for property investment?
The investment case is weak. Only 13.1% of households rent, producing a thin tenant pool. The 2.0% gross yield ($550 rent on $1,458,750 median) sits below most investor thresholds. The 1.6% vacancy rate indicates scarcity rather than strong demand. Capital growth at 6.4% year-on-year is solid, but the IER decile 10 and 97.3 percentile income suggest the suburb has already priced in its advantage.
How is Harrington Park's population changing?
Population grew 47.2% over the past decade as the master-planned estate completed staged lot releases, adding 258 persons per year at 2.27% annual growth. Medium projections reach 13,632 by 2031. Net internal migration is now negative at 118 per year, indicating the estate has matured and some families are leaving. The young share dropped 5.0 points while the senior share grew 3.5 points.
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 Valuer-General (house prices), Department of Jobs SALM (unemployment), ACARA (school ICSEA), 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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