SA · Kangaroo Island Council

Middle River, 5223

Est. population · Jun 2025

25

Growth (1 yr)

+4.2%

Growth (5 yr)

+8.7%

Median age

45

Median income

$1,124/wk

Employment rate

60%

Languages at home

Mostly English at home

2021 Census · usual residence

  • Green suburb
  • River access
What Middle River is known for: Green suburb, River access

Suburb profile

Middle River is a quieter smaller community in Kangaroo Island Council, where peace, space and a country-town pace still dominate. Far from Adelaide, it rewards people who want real remove from the city rather than a long-commute suburb. Established families and long-term residents give the suburb a settled feel.

With limited local amenities, residents regularly travel to a neighbouring town for shops, appointments and a wider choice. Parks and open space are a real strength relative to many comparable suburbs, easy for walks, sport and weekend downtime. A car helps for most daily errands, with fewer amenities clustered within an easy walk.

Property prices are middling for the area: fair relative to what is nearby. A trickle of new development is refreshing selected pockets without changing the overall feel.

At a glance

Middle River snapshot

A quick read of housing, growth, livability, and risk

Median house price

No data available

Median rent

No data available

Population (ERP)

25

+4.2% annual growth

Dwelling vacancy

69.8%

Census unoccupied dwellings

How it compares

Relative standing using percentiles, ranks, and national deciles

Pop. growth

98th

percentile in SA

Advantage (IRSAD)

6/10

national SEIFA decile

Population growth

Recent ERP change over 1 and 5 years

Housing mix

Dwelling types from the 2021 Census

Risks & flags

Quick scan — open a section below for full context

Living here

Population

Estimated resident population

25(June 2025)

+4.2% annual · +8.7% over 5 years · 98th percentile in SA

Growth figures & methodology
Annual growth
+4.2%
5-year growth
+8.7%
Change in 1 year
+1
Change in 5 years
+2
Growth rank in SA
98th percentile

ABS Estimated Resident Population allocated to this suburb from SA2-level data. Not an official ABS suburb count.

Methodology

Figures are allocated from ABS Estimated Resident Population at Statistical Area Level 2 (SA2), using 2021 Census share within overlapping SA2 regions. Where Census data is unavailable, area overlap is used instead.

The dashed chart line is a simple growth-trend estimate to June 2030 (~50), extrapolated at +1.3% average annual growth since 2011. It is illustrative only — not an official ABS forecast.

2021 Census figures

2021 Census

Population
23
Median age
45
Median household income / week
$1,124
Dwelling vacancy
69.8%
Unoccupied private dwellings
30 of 43
Median monthly mortgage
$0
Employment rate
60%
Dwelling mix (houses / semi / flats)
12 / 0 / 0

Contributes to desirability score · Community (5%)

Employment, household income and age diversity (2021 Census)

Data sources & freshness

  • 2021 Census — General Community ProfileAustralian Bureau of Statistics · Updated

    The 2026 Census runs in August 2026; suburb-level updates are expected from mid-2027.

  • Estimated Resident PopulationAustralian Bureau of Statistics · 2025 · Updated · SA2 ERP allocated to suburb boundaries

Community & culture

No 2021 Census cultural diversity data for this suburb yet.

Data sources & freshness

  • 2021 Census — General Community ProfileAustralian Bureau of Statistics · Updated

    The 2026 Census runs in August 2026; suburb-level updates are expected from mid-2027.

Family & Lifestyle

Amenities

No OpenStreetMap amenities mapped for this suburb yet.

Contributes to desirability score · Lifestyle (15%)

Food, shopping, recreation and sport (OpenStreetMap)

Data sources & freshness

  • Local amenity insightsSuburb Guide (derived) · current · Updated
  • OpenStreetMap amenitiesOpenStreetMap contributors · current · Updated

Green cover

Parks & woodland (OSM)
43
Parks (OSM)
0

OpenStreetMap parks and natural woodland features mapped within the suburb boundary.

Contributes to desirability score · Environment (10%)

Parks and green cover (OpenStreetMap)

Data sources & freshness

Health access

Nearest hospital
Kangaroo Island Health Service (50.9 km)
Nearest hospital type
Public Hospital
Nearest hospital emergency
Emergency department

Contributes to desirability score · Accessibility (15%)

Hospitals and GP clinics

Data sources & freshness

  • Hospitals & GP Plus clinics (SA)SA Health · current · Updated

NDIS participation

NDIS participants (31 March 2026)
1
Participants per 1,000 residents
40.0

Active NDIS participants allocated from NDIA Statistical Area Level 2 (SA2, ASGS 2016) counts to this suburb boundary. Not an official suburb-level NDIS figure · as at 31 March 2026.

For NDIS spend and service-demand exploration by SA2 or postcode, see the Care Sector Demand Map.

Data sources & freshness

Weather

Typical conditions by season for suburbs in the same ~44 km climate area. Rainfall totals are summed from monthly WorldClim layers; rainy-day counts are approximate.

Summer (Dec–Feb)

Usual max / min
24° / 14°
Rainfall
55 mm · ~7 rainy days

Autumn (Mar–May)

Usual max / min
20° / 12°
Rainfall
144 mm · ~18 rainy days

Winter (Jun–Aug)

Usual max / min
15° / 9°
Rainfall
278 mm · ~35 rainy days

Spring (Sep–Nov)

Usual max / min
19° / 10°
Rainfall
131 mm · ~16 rainy days

Contributes to desirability score · Lifestyle (15%)

Temperature and humidity comfort

Data sources & freshness

  • Seasonal climate normalsWorldClim 2.1 · Updated

Future & Planning

Planning & development

Development applications from PlanSA register (lodged 2020–2026) and EPA licensed activities.

15 planning-related records

2025· 3 proposals
  • October 2025

  • Tourist accommodation and wellness complex comprising 60 accommodation modules, a restaurant, day spa and reception building, services outbuildings, ancillary tourism experience structures, footpaths and decking, 33 geothermal bathing pools, 26 staff accommodation units, landscaping, carpark, new internal roads and access, and on-site infrastructure including solar PV, water storage dams and waste treatment facilities.
    6538 NORTH COAST RD MIDDLE RIVER SA 5223Decision Made
  • May 2025

  • Boundary Realignment - 2 Allotments into 2
    6025 NORTH COAST RD MIDDLE RIVER SA 5223;6203 NORTH COAST RD MIDDLE RIVER SA 5223Decision Made
  • April 2025

  • Construction of 18.0m x 7.8m x 3.6m shed
    5280 NORTH COAST RD MIDDLE RIVER SA 5223Decision Made
2024· 3 proposals
  • October 2024

  • Construction of a single storey dwelling and associated earthworks and rainwater tanks
    LOT 106 NORTH COAST RD MIDDLE RIVER SA 5223Decision Made
  • September 2024

  • Construction of a single storey dwelling and rainwater tank (residential use for a temporary period not exceeding 1 December 2027 or until such time as a certificate of completion/occupancy has been issued for the principal dwelling, which ever comes first)
    5753 NORTH COAST RD MIDDLE RIVER SA 5223Under Assessment
  • March 2024

  • Agricultural building (shed) and 109,000 litre water tank
    LOT 106 NORTH COAST RD MIDDLE RIVER SA 5223Decision Made
2022· 3 proposals
  • August 2022

  • Proposed dwelling replaces existing
    6203 NORTH COAST RD MIDDLE RIVER SA 5223Decision Made
  • April 2022

  • Construction of an agricultural building for storage of machinery and equipment.
    LOT 501 NORTH COAST RD MIDDLE RIVER SA 5223Decision Made
  • January 2022

  • Temporary accommodation in an area affected by bushfire
    LOT 52 NORTH COAST RD MIDDLE RIVER SA 5223Decision Made
2021· 6 proposals
  • December 2021

  • Temporary accommodation in an area affected by bushfire
    5753 NORTH COAST RD MIDDLE RIVER SA 5223Decision Made
  • November 2021

  • Construction of a single storey detached dwelling including water storage tank and associated earthworks
    185A BARKER RD MIDDLE RIVER SA 5223Decision Made
  • September 2021

  • Temporary placement of a transportable kitchen facility (in the form of a shipping container) associated with existing restaurant/cafe venue
    5997 NORTH COAST RD MIDDLE RIVER SA 5223;Lot 200 North Coast Road Middle River CT6224/140Decision Made
  • July 2021

  • Retrospective application Proposed bedroom and attic storage (internal alterations)
    6362 NORTH COAST RD MIDDLE RIVER SA 5223Decision Made
  • June 2021

  • Amendment to Approved Development 520/L002/19 - to include an additional 2 accommodation units, new 200KL holding tank, reconfiguring to internal roadway and other minor works
    6208 NORTH COAST RD MIDDLE RIVER SA 5223Decision Made
  • April 2021

  • Construction of one (1) replacement dwelling with modifications - Bushfire impacted
    156A KING GEORGES RD MIDDLE RIVER SA 5223Decision Made

Contributes to desirability score · Future Growth (7%)

Development and planning activity

Data sources & freshness

Hazards

Bushfire planning zone
Overlay applies

Bushfire overlay checked at suburb centroid against all current SA Planning risk layers (high, medium, general, urban interface, regional, outback). Safer places from CFS designated locations.

Contributes to desirability score · Safety (18%)

Bushfire hazard overlays

Data sources & freshness

Politics & representation

Federal electorate
Mayo
Member of Parliament
Rebekha SHARKIE (Centre Alliance)
Results from
2025 federal election
Electorate enrolment (2025)
137,818
Turnout (2025)
94.2%
Swing since 2022 (2025)
+3.4 pp toward Labor

Two-party preferred (2025)

Coalition 45.0%Labor 55.0%

Estimated suburb voting profile

Estimated from 8 nearby ordinary polling places (up to 116.8 km away).

Coalition 71.3%Labor 28.7%

26.3 percentage points more Coalition-leaning than the electorate

Estimated swing since 2022: -10.4 pp toward Coalition

Nearest polling places

  • ParndanaLabor 21.6% · Coalition 78.4% TPP (2025)20.0 km away
  • KingscoteLabor 44.9% · Coalition 55.1% TPP (2025)50.8 km away
  • Special Hospital Team 5Labor 25.0% · Coalition 75.0% TPP (2025)51.3 km away
  • American RiverLabor 42.5% · Coalition 57.5% TPP (2025)64.4 km away
  • PenneshawLabor 50.6% · Coalition 49.4% TPP (2025)77.4 km away

Federal electorate from AEC federal division boundaries (2025 redistribution). Division-level results are official AEC figures from the latest general election, with by-election updates where applicable. The estimated suburb profile blends up to eight nearest ordinary polling booths in the same electorate using inverse-distance weighting from the suburb centroid — an approximation, not official AEC data. Nearest polling places are shown for reference.

Data sources & freshness

Socio-economic

IRSAD decile (2021)
6/10
IRSD decile (2021)
6/10

ABS Socio-Economic Indexes for Areas (SEIFA), 2021 release — the latest available, derived from the 2021 Census. Deciles rank suburbs nationally from 1 (lowest) to 10 (highest).

What do IRSAD and IRSD measure?

IRSAD — Index of Relative Socio-economic Advantage and Disadvantage. Combines indicators of advantage (e.g. high income, skilled occupations) and disadvantage. Higher decile = more advantaged relative to other Australian areas.

IRSD — Index of Relative Socio-economic Disadvantage. Focuses on disadvantage only (e.g. low income, unemployment, limited education). Higher decile = less disadvantage nationally.

A new SEIFA edition typically follows each census; the ABS has not announced a release date beyond 2021.

Contributes to desirability score · Community (5%)

Socio-economic advantage (IRSAD decile)

Data sources & freshness

More in Kangaroo Island Council

Other suburbs in the same local government area.