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Suburb profile ·Mount Barker LGA · SA ·5153

Biggs Flat SA 5153

Biggs Flat is in Mount Barker LGA, SA, postcode 5153, with population 84.

Limited data

Thin-context

The page is still useful for local context, but the evidence stack is too thin for a clean one-page call. Use nearby stronger suburbs or compare mode before treating it as a serious shortlist decision.

Why it fits

Population movement supports a growth-led read. Higher SEIFA context supports a stronger local-quality read.

What to check

Evidence depth is verify-heavy, so the profile should be treated as provisional. The page is thin enough that nearby alternatives should be checked before shortlisting. Small local population makes the signal set more fragile.

Median house
No local house series
Median rent
$350/wk
Market rent signal
D8 vs AU
Gross yield
Need rent + price
Population
45,111
45K via Mount Barker LGA · SAL undercount
Schools
No matched school data
Solar
2,222
124 added 12mo · 17MW

Price history

No price history available

Price series isn't recorded for this suburb. Census housing data is shown instead.

Median mortgage · mth$2,980
Median rent · wk$350

Affordability

22%
median weekly rent as a share of gross household income (the 30% rule)
Manageable

Owners with a mortgage repay a median of $2,980/mo, while renters pay about $1,517/mo — owning runs $1,463/mo higher on these medians.

Household income · yr
$85K
Median rent · wk
$350
Owner mortgage · mo
$2,980

Household income

$85K household · yr+12.2% vs SA suburb median
Personal
$39K
Family
$117K
Household
$85K

Full data detail

Biggs Flat SA — Property Data and Demographics

Biggs Flat is a sparsely populated locality in South Australia within the Mount Barker local government area (postcode 5153). It is home to about 84 residents, with an established demographic and a median age of 43. Households earn a median income of $85K per year, with an average household size of 2.7 people. Recent annual estimates show population movement into the broader catchment, with population growth running at +3.2% year-on-year at the LGA level. SA employment has moved +2.1% year-on-year in the official Jobs and Skills Australia NERO series, which provides the broader jobs backdrop for this suburb. SA also had 23 Commonwealth-backed major projects under construction, 2 underway, and 11 in planning as at 2 October 2024, which is useful as a broader delivery backdrop rather than a suburb-specific project count. The most common occupations are managers, professionals, technicians & trades. Employment in the area leans toward agriculture and education. The top ancestries reported are Australian, English, German.

The median weekly rent is $350 (Census 2021). The median monthly mortgage repayment is $2,980.

On the investment side, Population growth of +3.2% year-on-year points to strong growth demand fundamentals. Building approvals have changed +0% year-on-year, indicating steady development activity.

Market & money
Investment signalsHeuristics
Pop. Growth+3.2% Strong Growth
Development+0%· Steady
InvestmentSA
Mortgage · mth$2,980
Rent · wk(Census)$350
Population growth · Mount Barker LGAABS ERP
Population (2025)45,111
5-year growth+3.4% CAGR
YoY change+3.2%
20012025
Development · Mount Barker LGAABS Approvals
Approvals (2026)503
Houses454
Units49
YoY change+0%
Employment · Mount Barker LGASALM
Unemployment (Dec-25)3.8%
YoY change+0.3pp
Dec-10Dec-25
Property investors · Postcode 5153ATO
Negatively geared313 (7.1% of filers)
Avg rental loss$6,975/yr
Landlords (rental income)656
Reported capital gains513
People & prosperity
DemographicsCensus 21
Population84
Median age43
Household size2.7
HH income · wk$1,625
Personal income · wk$756
Persons / bedroom0.8
SEIFA indexABS
Advantage (IRSAD)10/10
Education (IEO)10/10
Economic (IER)10/10
Disadvantage (IRSD)10/10
Shortlist workspace

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Current status
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EMPTY SET

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Sources & freshness
Verify-heavy evidence

Biggs Flat depends on evidence that should be verified before a decision.

QuickProperty mixes release files, Census baselines, and matched local services on this page. Read the status panel before treating every metric as equally fresh.

PRICE POSTURE
Prices come from release-based suburb series.

Official quarterly house sales workbooks; units remain on ABS fallback coverage

RENT POSTURE
Rent is falling back to Census, not a market feed.

This gives you directional coverage, but it is weaker than a current rent release.

SERVICE POSTURE
Service coverage is matched locally, not inferred nationally.

Schools, transport, and hospitals are useful as presence signals, but they still have different source cadences.

Data status
Property prices
SA metropolitan median house sales · Official quarterly house sales workbooks; units remain on ABS fallback coverage
stable source · automated · every update · quarterly
Missing
Market rent
ABS Census 2021 · Using Census rent fallback
stable source · manual file · snapshot · census-cycle
Verify
Crime
State crime dataset · No linked local crime series
Missing
Schools
ACARA 2025 · No local school matches exposed
stable source · automated · every update · annual
Missing
Hospitals
AIHW · No linked local hospital coverage
medium stability · manual file · snapshot · mixed
Missing
Transport
GTFS feeds · No matched local transport stops
medium stability · manual file · snapshot · mixed
Missing
Population growth
ABS ERP · 2025 · Annual estimate series
stable source · automated · every update · annual
Available
Building approvals
ABS Building Approvals · 2026 · Annual release series
stable source · automated · every update · monthly
Available
Available means a direct local dataset is linked. Verify means coverage exists but freshness or precision is weaker, such as ABS price fallback, Census rent fallback, or low-confidence hospital matching.
Sparse locality note

This page stays indexable because Biggs Flat is a real locality with enough context to be directionally useful. The tradeoff is that coverage is lighter than a stronger suburb profile, so the read should stay cautious.

WHY IT LOOKS LIGHTER
This is a real locality, but it has a very small Census footprint.

Small-population localities can still be worth checking, but rankings, comparisons, and broad suburb assumptions become noisier faster.

WHAT IS MISSING
Coverage is lighter across school matches, hospital coverage, transport stops, and crime coverage.

Coverage is thinner on school matches, hospital coverage, transport stops, and crime coverage; lean less on this one page and confirm those gaps elsewhere.

BEST NEXT STEP
Use this page to understand the locality shape, then compare outward.

Begin here, but pressure-test the read in compare, against the state hub, or a bigger nearby suburb before deciding.

Page status
INDEXED WITH LIGHTER COVERAGE

This page remains visible, but it should be read as a locality brief rather than a full-confidence suburb profile.

HOW TO READ THIS PAGE

This page is useful for direction-setting, not closure. Use it to frame the locality, then confirm the story with compare, stronger nearby suburbs, and the state hub.

Stronger nearby reads

If Biggs Flat feels too thin on its own, use these nearby suburbs as stronger local reads before making a shortlist decision.

Mount Barker Summit most similar
similar rent profile similar suburb scale

pop same · rent -$15/wk

Similar local read: useful for context, but still compare the actual market signals.

Green Hills Range most similar
similar rent profile similar suburb scale

pop same · rent -$100/wk

Similar local read: useful for context, but still compare the actual market signals.

Petwood most similar
similar rent profile similar suburb scale

pop same · rent -$102/wk

Similar local read: useful for context, but still compare the actual market signals.

Biggs Flat FAQ

Common questions
  1. What LGA is Biggs Flat in?

    Biggs Flat is in the Mount Barker Local Government Area, SA, postcode 5153. Council-level context for Mount Barker LGA (suburb mix, population, rent, and price coverage) is available on the QuickProperty LGA page.

  2. What is the typical weekly rent in Biggs Flat?

    The median weekly rent in Biggs Flat is $350/wk, based on ABS Census 2021 rent fallback.

  3. Is Biggs Flat a good investment?

    QuickProperty's investment signals for Biggs Flat show: Strong Growth, Steady. These are computed from price, rent, income, and population data — not an opaque score.

  4. Where does QuickProperty get its data for Biggs Flat?

    Property prices come from state Valuers General offices and ABS Data by Region. Demographics are from ABS Census 2021. School ICSEA scores are from ACARA. Crime statistics are from state police agencies. Transport data is sourced from GTFS feeds.

  5. How often is the Biggs Flat data updated?

    Property prices update quarterly. RBA macro indicators update with each deploy. Demographics are from Census 2021. School ICSEA scores are from ACARA 2025.