Mid North
Black Rock
Black Rock at a glance
Walk score
0
Very car dependent
Population
36
Median age 62
The brief
What to know about Black Rock.
Black Rock (5431) sits in the Mid North region of South Australia.
Black Rock has roughly 36 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.
Day to day
What it’s like to live here.
Black Rock 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.
Schooling within or near the suburb covers 1 government primary.
Who lives here
Demographics.
The 2021 Census put Black Rock's population at 36, with a median age of 62. That sits as a retiree-heavy demographic. Households are predominantly owner-occupied (114% own, 0% rent), which shapes everything from school catchment stability to how often properties turn over. The household mix skews family-dominated (100% family households, 21% lone person), so amenity decisions tend to follow what families want: parks, schools, supermarkets.
Population
36
Median age
62
Family households
100%
Lone person
21%
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)
$150/wk
Weekly rent (unit)
$128/wk
Owner occupied
114%
Renter occupied
–
At a deeper level
36
Median age: 62
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Getting around
Walkability.
0
0
0
Scores calculated from OpenStreetMap data (ODbL)
Walkability data as of May 2026· OpenStreetMap
Place
Location.
Amenities
Transport
Education
Schools in Black Rock.
Local schools for Black Rock
View the catchment for each school to find out more.
Government School Catchment
Orroroo Area School
Peterborough Primary School
© ACARA, licensed under CC BY 4.0.
Frequently asked
About Black Rock.
- What is the Black Rock postcode?
- Black Rock is in the 5431 postcode, in SA, in the Mid North region.
- What is the average rent in Black Rock?
- The median weekly rent for houses is $150, for units it's $128.
- What schools are in Black Rock?
- There are 2 schools serving Black Rock on this page, including Orroroo Area School, Peterborough Primary School.
- How walkable is Black Rock?
- Black Rock has a Walk Score of 0 out of 100, highly car-dependent. transit score 0, bike score 0.
- What suburbs are near Black Rock?
- Black Rock is close to Yatina, Minvalara, Pekina, Sunnybrae, Wepowie.
- What is the population of Black Rock?
- Black Rock has approximately 36 residents. The median age is 62.
For Sale
Black Rock
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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 →
Always dated
Every figure on this page carries its source and as-of date in a tooltip. If a figure looks off to you, tell us and we’ll fix it within a week.
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