Aldinga vs Sellicks Beach
A data-only, side-by-side comparison of Aldinga and Sellicks Beach, two suburbs in South Australia — population, demographics, socio-economic profile and climate, drawn from public sources.
Key differences
- Sellicks Beach is the larger of the two, with about 2,705 residents to Aldinga's 764.
- Aldinga sits a little higher on the ABS SEIFA index of socio-economic advantage (971 to 942, where about 1000 is the national average).
- Median weekly household income is higher in Sellicks Beach ($1,424 to $1,102).
- Residents are typically older in Aldinga (median age 49 to 41).
Aldinga vs Sellicks Beach side by side
| Measure | Aldinga | Sellicks Beach |
|---|---|---|
| Population (2021) | 764 | 2,705 |
| Median age | 49 | 41 |
| Median weekly household income | $1,102 | $1,424 |
| SEIFA score | 971 | 942 |
| Local government area | Onkaparinga | Onkaparinga |
| State / territory | South Australia | South Australia |
| Avg summer high (Jan) | 26.7°C | 26.7°C |
| Avg winter high (Jul) | 13.2°C | 13.2°C |
| Annual rainfall | 801 mm | 801 mm |
Climate figures are long-run monthly normals (Open-Meteo, ERA5 reanalysis).
Common questions
Is Aldinga or Sellicks Beach bigger?
Sellicks Beach is larger, with about 2,705 residents at the 2021 Census compared with 764 in Aldinga.
Is Aldinga or Sellicks Beach warmer?
Aldinga is generally warmer in summer, with an average January daytime high of 26.7°C compared with 26.7°C.