SA · Yankalilla Council
Est. population · Jun 2025
154
Growth (1 yr)
+2.0%
Growth (5 yr)
+10.0%
Median age
65
Median income
$1,019/wk
Employment rate
32.6%
University qualified
13.7%
Work from home
29.5%
Languages at home
Mostly English at home
2021 Census · usual residence
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Suburb profile
Second Valley is a semi-rural locality near Adelaide, in Yankalilla Council. It is close to the Rapid Bay and the Fleurieu Peninsula.
Open-space access is exceptionally strong, placing it among the highest-ranked semi-rural and lifestyle localities. Green cover is a relative strength, and population growth is a very strong feature of the suburb, with population growth 67% above the peer median, and working from home is more common than in comparable places, with working from home 101% above the peer median. Space is a strength, but car dependence is high. Employment is a relative weakness, with employment 48% below the peer median.
Overall, the suburb suits people prioritising open space over employment.
Generated from the official metrics on this page. It can omit nuance or contain errors — check the tables and source notes before relying on it.
Strengths and weaknesses
Semi-rural locality · compared with semi-rural and lifestyle localities in South Australia (227)
Who it suits
Housing, growth and risk
A quick read of housing, growth, livability, and risk
Median house price
—
No data available
Median rent (Census)
$200/wk
2021 Census median weekly rent
Population (ERP)
154
+2.0% annual growth
Dwelling vacancy
67.4%
Census unoccupied dwellings
Relative standing using percentiles, ranks, and national deciles
Crime rate
78th
percentile in state (higher = more crime)
Pop. growth
93rd
percentile in SA
Rented dwellings
17%
2021 Census tenure
Advantage (IRSAD)
2/10
national SEIFA decile
Recent ERP change over 1 and 5 years
Dwelling types from the 2021 Census
Quick scan — open a section below for full context
Estimated resident population
154(June 2025)
+2.0% annual · +10.0% over 5 years · 93th percentile in SA
ABS Estimated Resident Population allocated to this suburb from SA2-level data. Not an official ABS suburb count.
Figures are allocated from ABS Estimated Resident Population at Statistical Area Level 2 (SA2), using 2021 Census share within overlapping SA2 regions. Where Census data is unavailable, area overlap is used instead.
The dashed chart line is a simple growth-trend estimate to June 2030 (~150), extrapolated at +2.4% average annual growth since 2011. It is illustrative only — not an official ABS forecast.
2021 Census
Contributes to desirability score · Community (12%) · Accessibility (12%) · Future Growth (6%)
Employment, household income and owned-outright tenure (2021 Census) Work-from-home and public-transport commute shares (2021 Census) Five-year population change as a healthy-growth band, not a boom bonus
Data sources & freshness
The 2026 Census was conducted in August 2026; suburb-level updates are expected from mid-2027.
13.7% of adults have a university degree, compared with 22.6% across South Australia. 21.2% have a trade or vocational qualification.
Main field of the highest non-school qualification (2021 Census).
| Measure | Definition |
|---|---|
| University qualified | Bachelor degree or higher |
| Diploma qualified | Advanced Diploma / Diploma |
| Trade / vocational | Certificate III + IV |
| Year 12 | Year 12 as highest attainment |
| Below Year 12 | Year 11 / 10 / 9 or below |
People aged 15 years and over, 2021 Census. University, diploma and trade shares match ABS highest educational attainment (HEAP). Year 12 and below Year 12 are combined in the chart because the General Community Profile reports school-only attainment as a residual.
Contributes to desirability score · Community (12%)
University qualifications from the 2021 Census
Data sources & freshness
The 2026 Census was conducted in August 2026; suburb-level updates are expected from mid-2027.
6th percentile in SA · -30% vs Australia
22nd percentile in SA · -23% vs Australia
58th percentile in SA · -6% vs Australia
80th percentile in SA · +73% vs Australia
78th percentile in SA · +25% vs Australia
Australian Taxation Office Taxation Statistics 2023–24, individuals Table 25. Figures describe taxpayers who live in postcode 5204 — not a suburb-level official statistic. Rental investment is the share of local taxpayers reporting rental income or loss, not the share of local properties owned by investors.
Percentiles rank this postcode among unique postcodes in SA, so suburbs that share a postcode are not counted twice. Dollar figures are compared with Australia-wide ATO medians from the same release. Median net rent is among taxpayers who reported the rent label and can be negative.
Data sources & freshness
26% born overseas
47.4%No religion
No religion is the most common response at 47.4%, while Christianity accounts for 36.4%.
| Measure | Suburb | State |
|---|---|---|
| No religion | 47.4% | 45.2% |
| Christianity | 36.4% | 40% |
| Other / not stated | 16.2% | 14.7% |
| Denomination | Suburb | State |
|---|---|---|
| Anglican | 15.6% | 7.2% |
| Catholic | 9.7% | 15.5% |
| Uniting Church | 7.1% | 4.8% |
2021 Census — languages spoken at home, birthplace, Indigenous status, and religious affiliation (usual residence). Religion is optional on the Census form.
Data sources & freshness
The 2026 Census was conducted in August 2026; suburb-level updates are expected from mid-2027.
Reported offences increased compared with the previous period.
Contributes to desirability score · Safety (22%)
Crime rate, offences against the person, year-on-year trend and recorded road crash rates
Data sources & freshness
1 public transport stops in this suburb
Contributes to desirability score · Accessibility (12%)
Public transport stops per 1,000 residents and walkability
Data sources & freshness
11 mapped amenities
7 beaches · 1 caravan parks · 1 campgrounds
Names and addresses from OpenStreetMap. Unnamed venues show as their type (e.g. Cafe). Transport stops are summarised by type rather than listed individually. Campgrounds, beaches, wineries and local trails are included when they sit inside the suburb boundary.
Contributes to desirability score · Lifestyle (12%)
Food, shopping, recreation and sport per 1,000 residents (OpenStreetMap)
Data sources & freshness
Green cover is the share of this suburb's boundary overlapping OpenStreetMap parks, woodland and forest polygons — not a satellite tree-canopy product. Summer maximum is the WorldClim / Open-Meteo seasonal normal already collected for Weather.
Contributes to desirability score · Environment (12%)
Tree canopy first, then green-cover area and parks per 1,000
Data sources & freshness
GP clinic counts from OpenStreetMap. Bulk-billing figures only include clinics tagged in OSM (sparse and unofficial — not a Medicare list).
Contributes to desirability score · Accessibility (12%)
Hospitals, GPs and aged care
Data sources & freshness
Active NDIS participants allocated from NDIA Statistical Area Level 2 (SA2, ASGS 2016) counts to this suburb boundary. Not an official suburb-level NDIS figure · as at 31 March 2026.
For NDIS spend and service-demand exploration by SA2 or postcode, see the Care Sector Demand Map.
Data sources & freshness
Typical conditions by season for suburbs in the same ~44 km climate area. Rainfall totals are summed from monthly WorldClim layers; rainy-day counts are approximate.
Contributes to desirability score · Lifestyle (12%)
Temperature and humidity comfort
Data sources & freshness
Development applications from PlanSA register and EPA licensed activities.
September 2026
August 2026
July 2026
January 2026
September 2025
July 2025
June 2025
May 2025
April 2025
March 2025
February 2025
November 2024
September 2024
August 2024
June 2024
April 2024
March 2024
December 2023
October 2023
June 2023
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November 2022
August 2022
July 2022
April 2022
March 2022
January 2022
December 2021
Data sources & freshness
4 active roadworks / incidents
Data sources & freshness
3 heritage places
Contributes to desirability score · Environment (12%)
Heritage listings as established streetscape
Data sources & freshness
Bushfire overlay checked at suburb centroid against all current SA Planning risk layers (high, medium, general, urban interface, regional, outback). Flood cover is the share of the suburb boundary overlapping current SA Planning flood overlays (flooding and evidence required). Safer places from CFS designated locations.
Contributes to desirability score · Safety (22%)
Bushfire and flood hazard overlays
Data sources & freshness
Two-party preferred (2025)
Estimated suburb voting profile
Estimated from 8 nearby ordinary polling places (up to 34.6 km away).
1.7 percentage points more Coalition-leaning than the electorate
Estimated swing since 2022: +3.6 pp toward Labor
Nearest polling places
Federal electorate from AEC federal division boundaries (2025 redistribution). Division-level results are official AEC figures from the latest general election, with by-election updates where applicable. The estimated suburb profile blends up to eight nearest ordinary polling booths in the same electorate using inverse-distance weighting from the suburb centroid — an approximation, not official AEC data. Nearest polling places are shown for reference.
Data sources & freshness
ABS Socio-Economic Indexes for Areas (SEIFA), 2021 release — the latest available, derived from the 2021 Census. Deciles rank suburbs nationally from 1 (lowest) to 10 (highest).
IRSAD — Index of Relative Socio-economic Advantage and Disadvantage. Combines indicators of advantage (e.g. high income, skilled occupations) and disadvantage. Higher decile = more advantaged relative to other Australian areas.
IRSD — Index of Relative Socio-economic Disadvantage. Focuses on disadvantage only (e.g. low income, unemployment, limited education). Higher decile = less disadvantage nationally.
A new SEIFA edition typically follows each census; the ABS has not announced a release date beyond 2021.
Contributes to desirability score · Community (12%)
Socio-economic advantage (IRSAD and IRSD deciles)
Data sources & freshness
Other suburbs in the same local government area.
Similar population and socio-economic profile in other parts of South Australia.