Moving to O'sullivan Beach SA 5166
What the official numbers say about living in O'sullivan Beach — before you pack a box.
At a glance
Housing: buy or rent
Budget around $780,000 for a median house (based on 2026 1Q sales).
Renting? The census median is $300 a week, against a median household income of $1,072 a week.
About 70% of homes are owner-occupied and 30% rented, and the most common dwelling type is the house.
Who you'll be living with
O'sullivan Beach shrank 5% between the 2011 and 2021 censuses (1,934 → 1,844 people).
Around 62% of households are families, averaging 2.2 people per home.
Largest overseas birthplaces: England, Germany, New Zealand; most spoken languages besides English: German, Afrikaans, Italian.
On the ABS advantage scale (SEIFA), O'sullivan Beach scores below the national average (decile 1 of 10).
The commute
The most common way to work is by car (86% of workers), while 10% work from home.
Nearest train station: Lonsdale, 1.7 km north-east.
Nearest bus interchange: Noarlunga Centre Interchange, 2.7 km south-east.
Nearest airport: Adelaide Airport, 20.3 km north.
The Adelaide CBD is roughly 24 km away in a straight line.
Daily life
Mapped locally so far: 18 schools · 13 cafes & restaurants · 6 supermarkets · 8 parks — see them all on the O'sullivan Beach profile.
What's actually nearby
Schools: Southern Montessori School 650 m · Christies Beach Primary School 2.1 km · Christie Downs Primary School 2.1 km · Lonsdale Heights Primary School 2.3 km · Marcellin Technical College 2.4 km · Christies Beach High School 2.6 km · Port Noarlunga Primary School 2.8 km · Cardijn College 3.6 km
Groceries: Friendly Grocers 200 m · Christies Beach IGA 1.4 km · Coles 2.1 km · Flaxmill Road Supermarket 2.2 km · Woolworths 2.3 km · Coles 3 km
Parks and reserves: Yangara Reserve 250 m · Lohmann Park Christies Beach 1.3 km · Niipu-niipu Wama Morton Park 2.1 km · Rotary Park 2.3 km · Helen Ellis Reserve 2.5 km · Glasgow Street Reserve 2.6 km · Ramsay Place 2.9 km · Lance Hawke Park 2.9 km
What you'll see in the garden
Birds recorded around O'sullivan Beach, most often seen first: Common Starling · Little Raven · Rock Dove · House Sparrow · Southern Magpie-lark · Rainbow Lorikeet.
How the neighbours compare
The suburbs nearest to O'sullivan Beach, side by side.
| Suburb | People | Median house | Advantage | Canopy |
|---|---|---|---|---|
| O'sullivan Beach here | 1,844 | $780,000 | 1/10 | 7% |
| Christies Beach | 5,962 | $923,500 | 2/10 | 6% |
| Christie Downs | 5,239 | $771,000 | 1/10 | 9% |
| Lonsdale | 23 | — | — | 5% |
| Port Noarlunga | 3,245 | $898,000 | 4/10 | 6% |
| Noarlunga Centre | 203 | $715,000 | 2/10 | 7% |
| Noarlunga Downs | 4,031 | $770,000 | 2/10 | 10% |
Before you move — quick checklist
- Your council will be Onkaparinga — bins, rates, pets and permits live there.
- You'll vote in the federal electorate of Kingston — update your enrolment address.
- The postcode is 5166 — handy for utility sign-ups and quotes.
- Check street-level details on the full O'sullivan Beach profile (map, streets, amenities, wildlife).
In short
A house in O'sullivan Beach has a median sale price of $780,000 (2026 1Q sales). Renters pay a median $300 a week, and about 30% of homes here are rented.
The population fell 5% between the 2011 and 2021 censuses, from 1,934 people to 1,844. It sits about 24 km from the Adelaide CBD in a straight line, and Lonsdale station is roughly 1.7 km away. Local government is Onkaparinga council, and the federal seat is Kingston.
Weighing up alternatives?
Side-by-side: O'sullivan Beach vs Christie Downs · O'sullivan Beach vs Lonsdale.
Nearby guides: Christies Beach · Christie Downs · Lonsdale · Port Noarlunga · Noarlunga Centre · Noarlunga Downs.
Keep an eye on O'sullivan Beach
One email when this data meaningfully changes — new census figures, prices, rankings. No spam, unsubscribe anytime.