Population
+12.0% since 2016.
Onkaparinga Heights, SA
Onkaparinga Heights had a population of 525 at the 2021 Census (+12.0% since 2016). Median age 40.6. Median weekly household income $1,148. Source: ABS Census 2021, via Censible. Census 2026 data arrives June 2027.
Onkaparinga Heights at a glance
What the 2021 Census says, compared with South Australia.
Between the 2016 and 2021 censuses, Onkaparinga Heights's population grew by 12.0% to 525, faster than South Australia as a whole (+6.3%). Its median age of 40.6 is close to the SA average (40.9). Children under 10 make up 11.8% of residents, and people aged 70 and over 17.3%.
23.5% of households rent, a smaller share than the SA average of 27.9%. 27.7% own their home outright. Almost every home is a house; flats and apartments are 0.2% of homes. The 2021 Census counted 213 households.
The median household earns $1,148 a week, below the SA average of $1,456. Renters pay a median $299 a week, and households with a mortgage repay $1,302 a month.
19.0% of residents were born overseas, fewer than the SA average of 25.2%. 5.4% use a language other than English at home. 63.0% report no religion, higher than the SA average (48.9%).
Key figures
2021 Census, Onkaparinga Heights beside SA and Australia.
| Measure | Onkaparinga Heights | SA | Australia |
|---|---|---|---|
| Population | 525* | 1,781,501 | 25,422,828 |
| Growth since 2016 | +12.0% | +6.3% | +8.6% |
| Median age | 40.6* | 40.9 | 38.2 |
| Households | 213* | 691,344 | 9,275,123 |
| Flats and apartments | 0.2%* | 6.8% | 14.3% |
| Renting | 23.5%* | 27.9% | 31.1% |
| Owned outright | 27.7%* | 33.3% | 31.4% |
| Median household income a week | $1,148* | $1,456 | $1,747 |
| Median rent a week | $299* | $300 | $376 |
| Median mortgage repayment a month | $1,302* | $1,505 | $1,866 |
| Born overseas | 19.0%* | 25.2% | 29.3% |
| Other language at home | 5.4%* | 18.7% | 23.6% |
| No religion | 63.0%* | 48.9% | 41.9% |
Source: ABS Census 2021, via Censible. * estimated on 2026 boundaries. How the figures are built
Population and age
Each census since 2011, and the age profile in 2021.
Age
Median age 40.6, against 40.9 for South Australia.
Source: ABS Census 2021, via Censible. How the figures are built
Cultural background
The largest groups in Onkaparinga Heights at the 2021 Census.
Ancestry
Languages at home
Country of birth
Source: ABS Census 2021, via Censible. How the figures are built
Around Onkaparinga Heights
The places it belongs to, sits beside and contains.
Part of
Nearby
Explore Onkaparinga Heights in Censible
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