Flagstaff Hill at a glance
Median house
$1,086,250
+20.0% year on year
Median unit
$252,000
Walk score
8
Very car dependent
Population
10.2k
Median age 43
The brief
What to know about Flagstaff Hill.
The postcode for Flagstaff Hill is 5159 (SA), part of Greater Adelaide.
The median house price in Flagstaff Hill is $1,086,250.
Flagstaff Hill (5159) sits in the Onkaparinga region of South Australia. The median house here is $1,086,250, well above the South Australia median of around $720K. Prices have moved +20% over the past year, well clear of the South Australia average (5%).
Flagstaff Hill has roughly 10,184 residents, with an established, older skew. Households are predominantly owner-occupied. Daily life is car-dependent: most residents drive to work, school and the shops.
Side by side
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Median, growth, schools, walkability, all in one view.
Day to day
What it’s like to live here.
Flagstaff Hill scores 8/100 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 9 government primary, 4 government secondary, 2 Catholic, 5 independent.
Who lives here
Demographics.
The 2021 Census put Flagstaff Hill's population at 10,184, with a median age of 43. That sits as an established, older skew. Households are predominantly owner-occupied (88% own, 10% rent), which shapes everything from school catchment stability to how often properties turn over. The household mix skews family-dominated (83% family households, 16% lone person), so amenity decisions tend to follow what families want: parks, schools, supermarkets.
Population
10,184
Median age
43
Family households
83%
Lone person
16%
Demographics data as of May 2026· ABS 2021 Census
Houses change hands at $1,086,250 on a typical sale, well above the South Australia median. Units come in around $252,000, roughly 77% below the house median. The last 12 months delivered strong growth (+20%) — well clear of the long-run average for the state.
For buyers
A 20% deposit on the median house works out to roughly $217,000. Prices sit well above the South Australia median, so plan for a stretched deposit and shop carefully on borrowing capacity.
For sellers
Twelve-month growth is +20%, supporting confident pricing at the upper end of recent comparables.
Market
The price of a home here.
Median house price
$1,086,250
+20.0% over the past year. Median unit price $252,000.
Sales data as of July 2026· sales-sa
Rental and ownership
Weekly rent (house)
$600/wk
Weekly rent (unit)
$550/wk
Owner occupied
88%
Renter occupied
10%
At a deeper level
$1,086,250
+20.0% annual growth
$252,000
10,184
Median age: 43
Rental data as of March 2026· rental-sa
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For investors
Investment overview.
Gross rental yield on houses sits at 2.87% (median rent $600/wk against a $1,086,250 price tag). Units yield 11.35% gross, often the better cash-flow play for first-time investors. Renter share is modest (10%), so the rental pool is smaller and tenant demand can be patchier than in higher-density suburbs. The 12-month growth of +20% adds a capital-growth case on top of the yield.
Gross Yield (House)
Source: data.sa.gov.au · July 20262.87%
Based on $1,086,250 median
Gross Yield (Unit)
Source: data.sa.gov.au · July 202611.35%
Based on $252,000 median
Annual Growth (House)
Source: data.sa.gov.au · July 2026+20.0%
Year-on-year capital growth
Annual Growth (Unit)
Source: data.sa.gov.au · July 2026–
Year-on-year capital growth
Owner Occupancy
Source: ABS Census 2021 · May 202688%
Higher = more owner-occupier demand
Days on Market
Source: data.sa.gov.au · July 2026–
Lower = higher buyer demand
Gross rental yield is annual rent divided by purchase price, before expenses. It does not account for vacancy rates, management fees, maintenance, or financing costs. Use this as a starting point for further research.
5-year trajectory
at +20.0%/yr
2021
$437K
5-year change
+149%
2026
$1.1M
Trajectory derived from the current median compounded at the suburb’s annual growth rate, not raw sale-by-sale history.
Safety
Crime and safety.
80
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.
8
0
0
Scores calculated from OpenStreetMap data (ODbL)
Walkability data as of May 2026· OpenStreetMap
Place
Location.
Amenities
Transport
Education
Schools in Flagstaff Hill.
Local schools for Flagstaff Hill
View the catchment for each school to find out more.
Government School Catchment
Flagstaff Hill Primary School
Thiele Primary School
Bellevue Heights Primary 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 Flagstaff Hill.
- What is the median house price in Flagstaff Hill?
- The median house price in Flagstaff Hill, SA 5159 is $1,086,250. The median unit price is $252,000. Annual growth is +20.0%.
- What is the Flagstaff Hill postcode?
- Flagstaff Hill is in the 5159 postcode, in SA, in the City of Onkaparinga region.
- Where is Flagstaff Hill?
- Flagstaff Hill is a suburb of Adelaide, in SA 5159. It is part of the Greater Adelaide area, in the City of Onkaparinga region.
- What is the average rent in Flagstaff Hill?
- The median weekly rent for houses is $600, for units it's $550.
- What schools are in Flagstaff Hill?
- There are 20 schools serving Flagstaff Hill on this page, including Flagstaff Hill Primary School, Thiele Primary School, Pilgrim School.
- How walkable is Flagstaff Hill?
- Flagstaff Hill has a Walk Score of 8 out of 100, highly car-dependent. transit score 0, bike score 0.
- What suburbs are near Flagstaff Hill?
- Flagstaff Hill is close to Bellevue Heights, Craigburn Farm, Aberfoyle Park, Eden Hills, O Halloran Hill Dc.
- What is the population of Flagstaff Hill?
- The population of Flagstaff Hill is approximately 10,184 (2021 Census). The median age is 43.
For Sale
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Flagstaff Hill
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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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