Suburb profile
Undalya SA 5451
Undalya is located in the Barossa, Yorke and Mid North region of South Australia, postcode 5451. It has 24 properties across 14 streets, almost all houses. Explore every street in Undalya, its property history, homes for sale and rent, who lives there, and the local agents.
About Undalya
Undalya, SA 5451, sits in the Barossa, Yorke and Mid North region and neighbours Rhynie, Riverton, Saddleworth and Woolshed Flat. Its 14 streets hold 24 properties, all of them houses.
Census figures are for the Gilbert Valley area, which covers the whole suburb. At the 2021 Census Gilbert Valley had 5,016 residents, a median age of 51 and an average household of 2.3 people. Median household income was $1,257 a week, the median mortgage repayment $1,100 a month and the median rent $225 a week. Of 2,000 dwellings, 1,913 were separate houses, 65 semi-detached and 12 other; 905 were owned outright, 682 owned with a mortgage and 322 rented.
Updated October 2026
Who lives in Undalya
- 5,016Peoplelive in the area
- 51Median ageyears
- $1,257Median household incomea week
- $225Median renta week
Homes by type
- Houses1,913
- Townhouses and semis65
- Other12
Household
- Median mortgage repayment$1,100a month
- Household size2.3people on average
How homes are held
Streets in Undalya
- Cemetery Road2 properties
- Golf Course Road1 property
- Horrocks Highway1 property
- Kelly Road3 properties
- Long Hills Road1 property
- Long Road2 properties
- Masterman Road1 property
- Mcinerney Road1 property
- Mcinerny Road1 property
- Quondong Road1 property
- River Road1 property
- Undalya Road6 properties
- Woolshed Flat Road2 properties
- Woolshed Flat-Undalya Road1 property
Neighbouring suburbs
Addresses and streets incorporate or were developed using G-NAF © Geoscape Australia, licensed by the Commonwealth of Australia under the Open Geo-coded National Address File (G-NAF) End User Licence Agreement.
Population and housing figures are drawn from the Australian Bureau of Statistics, Census of Population and Housing 2021, licensed under Creative Commons Attribution 4.0 International.
Area summaries are generated from the national address file and ABS Census data, and checked against those figures before publication.