Seaford Heights, SA
By Lauren McCaleb · Reviewed by Dylan Duncan ·
More advantaged than the national average
Seaford Heights is more socio-economically advantaged than about 73% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 1028, where about 1000 is the national average).
A socio-economic measure from ABS Census data — not a measure of how good a suburb is to live in or visit. How we calculate this.
Seaford Heights at a glance
- Population (2021)
- 1,079
- Median age
- 29
- Median weekly household income
- $2,170
- SEIFA score
- 1028
- Coordinates
- -35.1982, 138.4971
Seaford Heights demographics (2021 Census)
The figures below profile Seaford Heights using the Australian Bureau of Statistics 2021 Census; every percentage is a share of a clearly stated Census count, so each one traces back to the source. At a glance, the largest age group is young adults (25–44) at 45%, 23% of homes are rented, and 27% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 254 | 24% |
| Youth (15–24) | 118 | 11% |
| Young adults (25–44) | 485 | 45% |
| Mid-life (45–64) | 169 | 16% |
| Seniors (65+) | 51 | 5% |
Share of the 1,077 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 40 | 10% |
| Owned with a mortgage | 269 | 67% |
| Rented | 92 | 23% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 374 | 94% |
| Townhouses & semis | 20 | 5% |
| Flats & apartments | 0 | 0% |
Tenure and dwelling shares are of the roughly 398 occupied private dwellings in Seaford Heights.
- Median weekly rent
- $380
- Median monthly mortgage
- $1,733
- Average household size
- 2.6 people
- Median weekly family income
- $2,343
- Median weekly personal income
- $1,081
Community and culture
- Born overseas
- 279 (27%)
- Speaks a language other than English at home
- 130 (12%)
- Aboriginal and/or Torres Strait Islander
- 24 (2%)
Work and education
- Completed Year 12
- 521 (66%)
- Labour-force participation
- 83.7%
- Unemployment rate
- 2.2%
- Employed full-time
- 433
- Employed part-time
- 203
Source: ABS Census of Population and Housing, 2021 (General Community Profile, by Suburb and Locality). © Australian Bureau of Statistics, released under CC BY 4.0. How we group bands and derive each share is set out on our methodology page.
Weather and climate in Seaford Heights
Based on 2014–2023 records, the warmest month in Seaford Heights is January (average daytime high around 26.7°C) and the coolest is July (around 13.2°C). The area receives roughly 801 mm of rain across the year.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 26.7°C | 16.2°C | 32 mm |
| Feb | 25.4°C | 15.8°C | 24 mm |
| Mar | 23.7°C | 14.9°C | 20 mm |
| Apr | 20.5°C | 13.2°C | 47 mm |
| May | 16.5°C | 11.1°C | 96 mm |
| Jun | 14°C | 9.1°C | 114 mm |
| Jul | 13.2°C | 8.4°C | 138 mm |
| Aug | 13.9°C | 8.1°C | 124 mm |
| Sep | 16.2°C | 9.2°C | 73 mm |
| Oct | 19.5°C | 10.8°C | 53 mm |
| Nov | 21.6°C | 12.4°C | 46 mm |
| Dec | 24.5°C | 14.2°C | 34 mm |
Climate normals, 2014–2023 (Open-Meteo, ERA5 reanalysis).
Common questions about Seaford Heights
Where is Seaford Heights?
Seaford Heights is a suburb of South Australia, Australia.
What is the population of Seaford Heights?
At the 2021 Census, Seaford Heights had a population of about 1,079.
Is Seaford Heights an advantaged area?
Seaford Heights has an ABS SEIFA score of 1028, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 73 out of 100 — more socio-economically advantaged than about 73% of Australian suburbs.
What is the weather like in Seaford Heights?
Seaford Heights has average daytime highs of about 19.6°C and overnight lows of about 11.9°C, with roughly 801 mm of rain across the year (based on 2014–2023 climate normals).
Nearby suburbs in South Australia
More suburb guides in South Australia
Other hand-written, cited guides — browse all guides.