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Northampton
Western Australia · Western Australia - Outback (South) · 3,231 people · 18 suburbs · 3 postcodes
Northampton at a glance
Map shows the Northampton LGA boundary in blue with a marker per suburb. Hover for suburb name, click for details.
Marker colour reflects SEIFA IRSAD decile: ● 1-2 (most disadvantaged), ● 3-4, ● 5-6, ● 7-8, ● 9-10 (most advantaged).
Boundary source: ABS ASGS 2021. Map tiles: OpenStreetMap contributors.
Northampton is a Local Government Area in Western Australia, in the Perth region. It covers 18 suburbs across 3 postcodes and an area of 12,544 km². Northampton has a population of 3,231 , ranking #68 most populous in WA. The most populous suburb is Kalbarri (1,478 residents), and the highest median household income is in Ogilvie at $2,374/week. The LGA-wide median household income is $1,149/week and median age is 53.2. About 13.2% of residents were born overseas and 2.4% speak a language other than English at home.
Who lives here
Age structure
Show counts
| 0–14 years | 495 (15.2%) |
| 15–24 years | 214 (6.6%) |
| 25–44 years | 586 (18.0%) |
| 45–64 years | 1,009 (31.0%) |
| 65+ years | 956 (29.3%) |
How they live
Housing tenure
Dwelling type mix
Work and learning
Schools in Northampton
4 schools across Northampton: 75.0% Government, 25.0% Catholic, 0% Independent. The WA average is 71.4% / 14.1% / 14.5%. Schools here have a median ICSEA of 936 (range 884 to 981). WA median is 1006; national mean is 1000.
Sector mix
Type breakdown
ICSEA range
ICSEA (Index of Community Socio-Educational Advantage) summarises the socio-economic background of each school's families. Higher values indicate more advantage. Source: ACARA 2025.
All 4 schools in Northampton, sorted by enrolment:
| School | Sector | Type | Suburb | Students | ICSEA |
|---|---|---|---|---|---|
| Kalbarri District High School | Government | Combined | Kalbarri | 208 | 981 |
| Northampton District High School | Government | Combined | Northampton | 138 | 884 |
| St Mary's School | Catholic | Primary | Northampton | 56 | 979 |
| Binnu Primary School | Government | Primary | Binnu | 10 | 894 |
Source: ACARA School Profiles 2025. ICSEA shown where reported; some schools (notably small primaries) do not publish ICSEA.
SEIFA socio-economic indexes
SEIFA 2021 ranks Australian areas across four dimensions. Scores are population-weighted averages of suburb-level SEIFA scores within Northampton. Higher scores indicate more advantage; the national mean is 1000.
IRSAD
Relative socio-economic advantage and disadvantage
IRSD
Relative disadvantage only (lower = more disadvantaged)
IER
Economic resources: income, wealth, housing
IEO
Education and occupation: qualifications, skill levels
Suburbs in Northampton
Northampton contains 18 suburbs and 3 postcodes. Sorted by population.
| Suburb | Postcode | Population | Median income | Median age |
|---|---|---|---|---|
| Kalbarri | 6536 | 1,478 | $1,122/wk | 53 |
| Northampton | 6535 | 830 | $869/wk | 57 |
| Horrocks | 6535 | 161 | $1,525/wk | 55 |
| Alma | 6535 | 116 | $1,468/wk | 50 |
| Sandy Gully | 6535 | 110 | $1,812/wk | 39 |
| Bowes | 6535 | 104 | $1,042/wk | 59 |
| Yallabatharra | 6535 | 79 | $966/wk | 58 |
| Binnu | 6532 | 58 | $1,625/wk | 48 |
| Isseka | 6535 | 57 | $1,312/wk | 45 |
| Ogilvie | 6535 | 56 | $2,374/wk | 41 |
| Gregory | 6535 | 53 | $833/wk | 63 |
| Ajana | 6532 | 51 | $949/wk | 34 |
| East Bowes | 6535 | 46 | $1,792/wk | 42 |
| West Binnu | 6532 | 21 | $1,874/wk | 64 |
| Coolcalalaya | 6532 | 11 | $1,375/wk | 45 |
| Eurardy | 6532 | $1,125/wk | 29 | |
| Kalbarri National Park | 6536 | |||
| Zuytdorp | 6536 |
Postcodes covered
Compare Northampton with neighbouring LGAs
Side-by-side demographic and socio-economic snapshot of Northampton and its closest neighbouring LGAs.
| LGA | Population | Median age | Median HH income | SEIFA IRSAD | % renting | % overseas-born |
|---|---|---|---|---|---|---|
| Northampton (WA) | 3,231 | 53.2 | $1,149/wk | 923 | 21.4% | 13.2% |
| Chapman Valley | 1,389 | 42.1 | $2,106/wk | 1003 | 10.1% | 12.9% |
| Shark Bay | 1,033 | 45.6 | $1,212/wk | 942 | 43.7% | 21.3% |
Services and amenities
Frequently asked questions about Northampton
What is the population of Northampton?
The 2021 Census recorded 3,231 people living in Northampton, across 18 suburbs.
What suburbs are in Northampton?
Northampton contains 18 suburbs. The most populous are Kalbarri, Northampton, Horrocks, Alma, Sandy Gully.See the full list in the Suburbs section above.
What postcodes are in Northampton?
Northampton covers 3 postcodes: 6532, 6535, 6536.
What is the median household income in Northampton?
The population-weighted median household income across Northampton is $1,149 per week (2021 Census), ranking #115 of 123 WA LGAs.
How many schools are in Northampton?
Northampton has 4 schools, including 3 government, 1 Catholic, and 0 independent schools (ACARA 2025).
What is the SEIFA score for Northampton?
Northampton has a population-weighted SEIFA IRSAD score of 923, where the national average is 1000. Higher scores indicate more relative advantage.
Page last reviewed . Data sources: Australian Bureau of Statistics 2021 Census (CC BY 4.0), SEIFA 2021 (IRSD, IRSAD, IER, IEO), ACARA School Profiles 2025, ABS ASGS 2021 LGA boundaries. How this data is sourced.