Hay Flat, SA 5204
District Council of YankalillaAll suburbs in postcode 5204
Updated
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.
Selling in Hay Flat?
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Rent in Hay Flat
- Weekly rent (house)
- $850/wk
- Weekly rent (unit)
- $200/wk
Rental data as of March 2026· SA rental bond data
Free appraisal in Hay Flat
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What to know about Hay Flat
Hay Flat (5204) sits in the Yankalilla region of South Australia.
Hay Flat has roughly 72 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.
What it’s like to live here
Hay Flat 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.
Summer days here average around 25°C (mild), winter mornings around 8°C (cool). Annual rainfall lands at about 657 mm. Figures are our 1991 to 2020 averages of SILO data for this location (Queensland Government, built from Bureau of Meteorology observations).
Schooling within or near the suburb covers 2 government primary.
Schools in Hay Flat
Location
Walkability
- Walk
- 0/100
- Transit
- 0/100
- Bike
- 0/100
Very car dependent. Scores out of 100, calculated from OpenStreetMap data (ODbL).
Walkability data as of May 2026· OpenStreetMap
Demographics
The 2021 Census put Hay Flat's population at 72, with a median age of 48. That sits as an established, older skew. Households are predominantly owner-occupied (79% own, 0% rent), which shapes everything from school catchment stability to how often properties turn over. The household mix skews family-dominated (71% family households, 0% lone person), so amenity decisions tend to follow what families want: parks, schools, supermarkets.
- Population
- 72
- Median age
- 48
- Family households
- 71%
- Owner occupied
- 79%
Demographics data as of May 2026· ABS 2021 Census
Crime and safety
3 offences recorded in 2025-26
Top offence categories
Source: State Police Open Data
Crime data as of June 2026
Weather year-round
- Annual rainfall
- 657 mm
- Hottest month, avg max
- 24.6°C
- Coldest month, avg min
- 7.8°C
Rainfall by month
Our 1991 to 2020 averages of SILO data (Queensland Government, built from Bureau of Meteorology observations, CC BY 4.0) for this location.
Climate data as of October 2026· SILO (Queensland Government), from Bureau of Meteorology observations
Questions about Hay Flat
- What is the Hay Flat postcode?
- Hay Flat is in the 5204 postcode, in SA, in the District Council of Yankalilla region.
- Where is Hay Flat?
- Hay Flat is a suburb in the District Council of Yankalilla area, SA 5204.
- What is the average rent in Hay Flat?
- The median weekly rent for houses is $850, for units it's $200.
- What schools are in Hay Flat?
- There are 3 schools serving Hay Flat on this page, including Yankalilla Area School, Rapid Bay Primary School, Myponga Primary School.
- How walkable is Hay Flat?
- Hay Flat has a Walk Score of 0 out of 100, highly car-dependent. transit score 0, bike score 0.
- What suburbs are near Hay Flat?
- Hay Flat is close to Torrens Vale, Parawa, Bald Hills, Yankalilla, Normanville.
- What is the population of Hay Flat?
- The population of Hay Flat is approximately 72 (2021 Census). The median age is 48.
Selling in Hay Flat? Get the free selling guide
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More on Hay Flat and nearby
Hay Flat
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Selling in SA
Sources. House and unit medians from the NSW Valuer General, Land Victoria, the SA Government and the ABS; rents from the state rental bond authorities. Census from the ABS (2021), climate from the Bureau of Meteorology, hazard from Geoscience Australia, schools from ACARA and crime from state police open data. Each figure carries its source and date. How we source data
How we’re paid. The guides and this page are free. When a seller asks, we introduce one local agent, and the agent pays us a flat fee for the introduction, never a share of their commission; it costs the seller nothing. If a figure looks wrong, tell us and we’ll fix it.