Sunnyvale, SA

By Lauren McCaleb · Reviewed by Dylan Duncan · Updated 30 May 2026

70/100

Suburb Score

More advantaged than the national average

Sunnyvale is more socio-economically advantaged than about 70% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 1023, where about 1000 is the national average).

A socio-economic measure from ABS Census data — not a measure of how good a suburb is to live in or visit. How we calculate this.

Sunnyvale at a glance

Population (2021): 38
Median age: 34
Median weekly household income: $2,250
SEIFA score: 1023
Coordinates: -34.1473, 137.8262

Sunnyvale demographics (2021 Census)

The figures below profile Sunnyvale using the Australian Bureau of Statistics 2021 Census; every percentage is a share of a clearly stated Census count, so each one traces back to the source. At a glance, the largest age group is mid-life (45–64) at 40%, 0% of homes are rented, and 0% of residents were born overseas.

Age profile

Age group	People	Share
Children (0–14)	9	26%
Youth (15–24)	0	0%
Young adults (25–44)	12	34%
Mid-life (45–64)	14	40%
Seniors (65+)	0	0%

Share of the 35 people counted by age.

Housing and households

Tenure	Dwellings	Share
Owned outright	8	44%
Owned with a mortgage	5	28%
Rented	0	0%

Dwelling type	Dwellings	Share
Houses	11	100%
Townhouses & semis	0	0%
Flats & apartments	0	0%

Tenure and dwelling shares are of the roughly 11 occupied private dwellings in Sunnyvale.

Median monthly mortgage: $848
Average household size: 3 people
Median weekly family income: $2,749
Median weekly personal income: $1,208

Community and culture

Born overseas: 0 (0%)
Speaks a language other than English at home: 0 (0%)
Aboriginal and/or Torres Strait Islander: 0 (0%)

Work and education

Completed Year 12: 16 (59%)
Labour-force participation: 96.2%
Employed full-time: 15
Employed part-time: 10

Source: ABS Census of Population and Housing, 2021 (General Community Profile, by Suburb and Locality). © Australian Bureau of Statistics, released under CC BY 4.0. How we group bands and derive each share is set out on our methodology page.

Common questions about Sunnyvale

Where is Sunnyvale?

Sunnyvale is a suburb of South Australia, Australia.

What is the population of Sunnyvale?

At the 2021 Census, Sunnyvale had a population of about 38.

Is Sunnyvale an advantaged area?

Sunnyvale has an ABS SEIFA score of 1023, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 70 out of 100 — more socio-economically advantaged than about 70% of Australian suburbs.