Joslin
SAJoslin is a growing suburb in SA with 1,243 residents.
- SAL code
- 40642
- SA2
- 401051019
- Population
- 1,243
- LGA
- Norwood Payneham and St Peters
Joslin, SA had 1,243 residents at the 2021 Census, with the broader statistical area showing a 5.2% growth over the last five years. The predominant age group is 55-64 years, and the median age sits at 48. Households are most often couples with children, and those with a mortgage repay a median of $2,461 a month. Around 79.8% of homes are owner-occupied, with the largest single tenure being owned outright at 47.5%. Most dwellings are separate houses, making up 76.8% of the suburb's housing stock. The suburb has 1 park or reserve mapped within its boundary. Source: ABS Census 2021 and Estimated Resident Population, with amenity counts from state Open Data and OpenStreetMap.
Population
?1,243
Suburb · Census 2021
5-Year Growth
+5.2%
3yr: +5.4% · 10yr: +8.1%
SA2 · 5yr
Household Income
$2,323/wk
Suburb · Census 2021 median
Median Age
48
Suburb · Census 2021
Socio-Economic Index
?8/10
SA2 · least disadvantaged
Unemployment
?2.3%
SA4 · Q4 2025
Hospitals
No data for this suburb
Childcare services
No data for this suburb
Parks & green space
?1
Parks, reserves
Transport stops
?4
GTFS stops
Dwelling approvals
?13
Norwood Payneham and St Peters · Feb 2026
Median Weekly Rent
Based on rental bond lodgements recorded by the state government.
Median House Sale Price
Source: state Valuer-General (suburb-level quarterly medians).
→ Calculate stamp duty on this suburb's median price→ Estimate mortgage repayments→ Calculate rental yield (price + median rent)
Safety & Crime
2025 Q4Reported incidents from SA police. Offence rates may not reflect all crime.
Population over time — St Peters - Marden (SA2)
ABS publishes annual estimates only at SA2; Joslin suburb alone is ~1,243 (Census 2021).
Growth at a Glance
Population grew from 12,677 to 14,481 over 24 years, averaging 0.6% per year.
Government school catchment
Intake zonePrimary
East Adelaide School99.9%
- Walkerville Primary School 50.0%
Secondary
Marryatville High School99.9%
- Adelaide High School 0.1%
- Adelaide Botanic High School 0.1%
Source: SA Department for Education — School Zones (primary + high). Boundaries can be amended without notice; confirm with the school before relying on enrolment.
Profile
Census snapshot
Housing
Almost entirely detached houses (76.8%), owner-occupied (80%).
Dwelling mix
Tenure
Number of bedrooms
Bushfire & flood risk
Bushfire
Hazard data is not yet available for this state.
Flood
Source: SA DEW Flood Mapping
As of May 2026
Overlap is the percentage of the suburb's land area inside the mapped hazard polygons. Always verify the exact property address with the relevant authority before making decisions.
Planning zones
4 zones in suburb| Code | Zone | % covered | Area |
|---|---|---|---|
| ESTABLISHED_NEIGHBOURHOOD | Established NeighbourhoodResidential | 87.7% | 0.44 km² |
| OPEN_SPACE | Open SpaceRecreation | 5.6% | 0.03 km² |
| HOUSING_DIVERSITY_NEIGHBOURHOOD | Housing Diversity NeighbourhoodResidential | 3.7% | 0.02 km² |
| GENERAL_NEIGHBOURHOOD | General NeighbourhoodResidential | 3.0% | 0.02 km² |
Source: SA Planning and Design Code Zones (ZONE_SA/2026-04-30/7965b1556505eb71) · As of Apr 2026. Zone boundaries are amended periodically; verify the exact property with the relevant council before relying on permitted use.