Second Valley at a glance
Walk score
0
Very car dependent
Population
154
Median age 65
The brief
What to know about Second Valley.
The postcode for Second Valley is 5204 (SA).
Second Valley (5204) sits in the Yankalilla region of South Australia.
Second Valley has roughly 154 residents, with a retiree-heavy demographic. Households are predominantly owner-occupied. Daily life is car-dependent: most residents drive to work, school and the shops.
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What it’s like to live here.
Second Valley scores 0/100 on walkability, which makes it car-dependent with limited public transport. Plan for two cars in a typical household, especially if work isn't local.
Summer days here average around 28°C (warm), winter mornings around 7°C (cool). Annual rainfall lands at about 448mm. Data comes from the Bureau of Meteorology's Adelaide (Kent Town) station, 11.1km away.
Schooling within or near the suburb covers 1 government primary.
Who lives here
Demographics.
The 2021 Census put Second Valley's population at 154, with a median age of 65. That sits as a retiree-heavy demographic. Households are predominantly owner-occupied (81% own, 16% rent), which shapes everything from school catchment stability to how often properties turn over. Lone-person households are notable here (41%), often a marker of unit-heavy stock and walkable infrastructure.
Population
154
Median age
65
Family households
48%
Lone person
41%
Demographics data as of May 2026· ABS 2021 Census
Market
The price of a home here.
Median house price
Verified median pending
We don't yet have a verified suburb-level median for this market. We're working on a data partner; in the meantime, treat the state-level figures as a guide only. How we source data.
Rental and ownership
Weekly rent (house)
$278/wk
Weekly rent (unit)
$300/wk
Owner occupied
81%
Renter occupied
16%
At a deeper level
154
Median age: 65
Rental data as of December 2025· rental-sa
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Safety
Crime and safety.
8
total offences in 2025-26
Top offence categories
Crime statistics are reported at LGA level and may cover a broader area than this suburb.
Source: State Police Open Data
Crime data as of June 2026· State Police Open Data
Getting around
Walkability.
0
0
0
Scores calculated from OpenStreetMap data (ODbL)
Walkability data as of May 2026· OpenStreetMap
Place
Location.
Amenities
Transport
Nearby suburbs
Education
Schools in Second Valley.
Local schools for Second Valley
View the catchment for each school to find out more.
Government School Catchment
Rapid Bay Primary School
Yankalilla Area School
© ACARA, licensed under CC BY 4.0.
Climate
Weather year-round.
Annual Rainfall
448 mm
Hottest Month (avg max)
28.0°C
Coldest Month (avg min)
7.0°C
Monthly Rainfall (mm)
Weather data from BOM station Adelaide (Kent Town) (11 km away)
Climate data as of May 2026· Bureau of Meteorology
Frequently asked
About Second Valley.
- What is the Second Valley postcode?
- Second Valley is in the 5204 postcode, in SA, in the District Council of Yankalilla region.
- Where is Second Valley?
- Second Valley is a regional suburb in SA, postcode 5204, in the District Council of Yankalilla region.
- What is the average rent in Second Valley?
- The median weekly rent for houses is $278, for units it's $300.
- What schools are in Second Valley?
- There are 2 schools serving Second Valley on this page, including Rapid Bay Primary School, Yankalilla Area School.
- How walkable is Second Valley?
- Second Valley has a Walk Score of 0 out of 100, highly car-dependent. transit score 0, bike score 0.
- What suburbs are near Second Valley?
- Second Valley is close to Delamere, Wirrina Cove, Rapid Bay, Deep Creek, Hay Flat.
- What is the population of Second Valley?
- The population of Second Valley is approximately 154 (2021 Census). The median age is 65.
For Sale
Second Valley
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Surrounding Suburbs
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Sources cited
Median, growth and rental data from state revenue offices and ABS. Census from ABS 2021. Climate from BoM. Hazard from Geoscience Australia. School data from ACARA. Crime from state police open data. Full methodology →
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