Australian Demographic Profile
Semaphore Park, SA 5019
Census-grade demographic profile. ABS Census 2021, adjusted to 2026.
Population
~4,461
Median age
47
Median income
Mid
$650-$799/wk
Top profile
Young
31%
Profile composition (top three)
- Young singles and non-workers31%
- Retired and semi-retired28%
- Established partnered households15%
Full 8-profile breakdown in the suburb report.
Population overview
- Synthetic individuals
- ~4,461
- Sex split
- F 54% / M 46%
- Tertiary-qualified
- 23%
Generated from ABS Census 2021 conditionals using Bayesian reconstruction, adjusted to 2026.
Age structure
- Children (0-14)16%
- Young adults (15-24)9.0%
- Early career (25-39)18%
- Mid career (40-59)25%
- Senior (60+)33%
Income distribution
Median individual income bracket in Semaphore Park: Mid ($650-$799/wk).
- No / not stated27%
- Low ($1-$499/wk)26%
- Mid ($500-$1.5k)31%
- High ($1.5k-$3k)14%
- Very high ($3k+)2.1%
Top occupations
- Professionals20%
- Clerical and Administrative Workers18%
- Technicians and Trades Workers15%
Full occupation breakdown in the suburb report.
Compared to SA and Australia
| Semaphore Park | SA avg | AUS avg | |
|---|---|---|---|
| Median age | 47 | 42 | 42 |
| Tertiary-qualified | 23% | 20% | 19% |
What's in the full report
- ✓ Full 8-profile composition with percentages
- ✓ All 47 demographic variables broken down
- ✓ Income vs occupation cross-tabulation
- ✓ Family composition by age group
- ✓ Country of birth and language distributions
- ✓ Educational attainment by age cohort
- ✓ Branded HTML, PDF, CSV exports
- ✓ Citation-ready format
Nearby suburbs
Explore demographics for areas close to Semaphore Park:
Methodology
Generated from ABS Census 2021 conditional tables using Bayesian reconstruction. Validated against real Census distributions with a median person-level SRMSE of 0.05 across 7,780 suburbs. Read the full methodology →