Population
+1,935.8% since 2016.
Seaford Heights, SA
Seaford Heights had a population of 1,079 at the 2021 Census (+1,935.8% since 2016). Median age 28.8. Median weekly household income $2,191. Source: ABS Census 2021, via Censible. Census 2026 data arrives June 2027.
Seaford Heights at a glance
What the 2021 Census says, compared with South Australia.
Between the 2016 and 2021 censuses, Seaford Heights's population grew by 1,935.8% to 1,079, faster than South Australia as a whole (+6.3%). With a median age of 28.8, it is younger than the SA average (40.9). Children under 10 make up 18.4% of residents, and people aged 70 and over 3.0%.
23.3% of households rent, a smaller share than the SA average of 27.9%. 10.1% own their home outright. Almost every home is a house; flats and apartments are 0.0% of homes. The 2021 Census counted 398 households.
The median household earns $2,191 a week, above the SA average of $1,456. Renters pay a median $383 a week, and households with a mortgage repay $1,737 a month.
26.6% of residents were born overseas, close to the SA average of 25.2%. 12.3% use a language other than English at home. 63.0% report no religion, higher than the SA average (48.9%).
Key figures
2021 Census, Seaford Heights beside SA and Australia.
| Measure | Seaford Heights | SA | Australia |
|---|---|---|---|
| Population | 1,079 | 1,781,501 | 25,422,828 |
| Growth since 2016 | +1,935.8% | +6.3% | +8.6% |
| Median age | 28.8 | 40.9 | 38.2 |
| Households | 398 | 691,344 | 9,275,123 |
| Flats and apartments | 0.0% | 6.8% | 14.3% |
| Renting | 23.3% | 27.9% | 31.1% |
| Owned outright | 10.1% | 33.3% | 31.4% |
| Median household income a week | $2,191 | $1,456 | $1,747 |
| Median rent a week | $383 | $300 | $376 |
| Median mortgage repayment a month | $1,737 | $1,505 | $1,866 |
| Born overseas | 26.6% | 25.2% | 29.3% |
| Other language at home | 12.3% | 18.7% | 23.6% |
| No religion | 63.0% | 48.9% | 41.9% |
Source: ABS Census 2021, via Censible. How the figures are built
Population and age
Each census since 2011, and the age profile in 2021.
Age
Median age 28.8, against 40.9 for South Australia.
Source: ABS Census 2021, via Censible. How the figures are built
Cultural background
The largest groups in Seaford Heights at the 2021 Census.
Ancestry
Languages at home
Country of birth
Source: ABS Census 2021, via Censible. How the figures are built
Around Seaford Heights
The places it belongs to, sits beside and contains.
Part of
Nearby
Explore Seaford Heights in Censible
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