Median house price
—
No data available
SA · Kangaroo Island Council
Nepean Bay, 5223
Est. population · Jun 2025
150
Growth (1 yr)
+0.7%
Growth (5 yr)
+5.6%
Median age
51
Median income
$875/wk
Employment rate
52.1%
Languages at home
3.3%non-English
Mostly English at home
2021 Census · usual residence
- Green suburb
- Excellent transport
Suburb profile
Nepean Bay offers a slower smaller community life in Kangaroo Island Council, with open surrounds and a close-knit community feel. Far from Adelaide, it rewards people who want real remove from the city rather than a long-commute suburb. An older demographic makes it especially popular with retirees, with multiple generations sharing the same neighbourhood.
Everyday basics may be close by, but bigger shopping and services typically require a trip to a nearby centre. Green space punches above what many comparable suburbs offer, with parks and playgrounds woven through the suburb. A car helps for most daily errands, though buses still link the suburb further afield.
Purchase and rent costs sit on the more affordable side of the local range. Tree-lined streets and established homes set the tone, with little pressure to reinvent the neighbourhood.
At a glance
Nepean Bay snapshot
A quick read of housing, growth, livability, and risk
Median rent
$330/wk
Population (ERP)
150
+0.7% annual growth
Dwelling vacancy
29.1%
Census unoccupied dwellings
How it compares
Relative standing using percentiles, ranks, and national deciles
Safety
4th
percentile in state (higher = safer)
Pop. growth
60th
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
Housing
- Houses (01/01/26 to 31/03/26)
- $330
Median weekly rent from SA Housing Authority rental bond data. Figures can be unreliable where few bonds were lodged in the quarter.
Median house sale prices cover metropolitan Adelaide and selected fringe councils (19 LGAs, including Adelaide Hills and Gawler), not all of regional South Australia.
Contributes to desirability score · Housing (15%) · Future Growth (7%)
Median price, rental yield and vacancy Recent price momentum
Data sources & freshness
- SA rent report & metro median house sales — Government of South Australia · 1 January - 31 March 2026 · Updated · Quarterly; metro-fringe sales only
Population
Estimated resident population
150(June 2025)
+0.7% annual · +5.6% over 5 years · 60th percentile in SA
Growth figures & methodology
- Annual growth
- +0.7%
- 5-year growth
- +5.6%
- Change in 1 year
- +1
- Change in 5 years
- +8
- Growth rank in SA
- 60th 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 (~150), extrapolated at +1.0% average annual growth since 2011. It is illustrative only — not an official ABS forecast.
2021 Census figures
2021 Census
- Population
- 140
- Median age
- 51
- Median household income / week
- $875
- Dwelling vacancy
- 29.1%
- Unoccupied private dwellings
- 23 of 79
- Median monthly mortgage
- $940
- Employment rate
- 52.1%
- Dwelling mix (houses / semi / flats)
- 55 / 0 / 0
Contributes to desirability score · Community (5%)
Employment, household income and age diversity (2021 Census)
Data sources & freshness
- 2021 Census — General Community Profile — Australian Bureau of Statistics · Updated
The 2026 Census runs in August 2026; suburb-level updates are expected from mid-2027.
- Estimated Resident Population — Australian 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 Profile — Australian Bureau of Statistics · Updated
The 2026 Census runs in August 2026; suburb-level updates are expected from mid-2027.
Crime & safety
Offence counts & rates
- Total offences (2023–24)
- 1
- Against the person
- 1
- Against property
- 0
- Rate per 1,000 residents
- 6.7
- Person-crime prevalence
- About 1 in 140 residents
- State safety percentile
- 4th (lower crime is better)
- Family & domestic abuse offences
- 17
Most common offence types
- Blackmail And Extortion1
Contributes to desirability score · Safety (18%)
Crime rate and year-on-year trend
Data sources & freshness
- SAPOL reported crime statistics — South Australia Police — OpenData · 2023-24; 2023-24 → 2024-25; 2024-25 · Updated · Financial-year releases
Family & Lifestyle
Public transport
7 public transport stops in this suburb
- Hog Bay Rd / Elsegood Rd - North side (Grace James' Corner)
- Hog Bay Rd / Min-Oil Rd - North East side
- Hog Bay Rd / Western Cove Rd - North East side (Western Cove)
- Hog Bay Rd / Western Cove Rd - South West side (Western Cove)
- Hog Bay Rd- South side (KI Kennels)
Contributes to desirability score · Accessibility (15%)
Public transport stop coverage
Data sources & freshness
- Adelaide Metro GTFS stops — Department for Infrastructure and Transport (SA) · current · Updated
Amenities
2 nearby amenities within ~1.5 km
1 swimming pools
Local character & venue list
Local character
- Limited walkable amenities nearby
- Walkability proxy
- 11/100
- Cafés per 1,000 residents
- 0
- Food & drink per 1,000 residents
- 0
- Parks per 1,000 residents
- 0
Sport & outdoors(1)
- Swimming pool
Other(1)
- MistereApartment
Names and addresses from OpenStreetMap. Unnamed venues show as their type (e.g. Cafe). Transport stops are summarised by type rather than listed individually.
Contributes to desirability score · Lifestyle (15%)
Food, shopping, recreation and sport (OpenStreetMap)
Data sources & freshness
- Local amenity insights — Suburb Guide (derived) · current · Updated
- OpenStreetMap amenities — OpenStreetMap contributors · current · Updated
Green cover
- Parks & woodland (OSM)
- 18
- 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
- OpenStreetMap green cover — OpenStreetMap contributors · current · Updated
Health access
- Nearest hospital
- Kangaroo Island Health Service (10.7 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)
- 4
- Participants per 1,000 residents
- 26.7
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
- NDIS participants by SA2 — National Disability Insurance Agency · 2026-Q1 · Updated · Quarterly SA2 counts allocated to suburb boundaries
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
- 23° / 15°
- Rainfall
- 55 mm · ~7 rainy days
Autumn (Mar–May)
- Usual max / min
- 19° / 13°
- Rainfall
- 129 mm · ~16 rainy days
Winter (Jun–Aug)
- Usual max / min
- 14° / 9°
- Rainfall
- 260 mm · ~32 rainy days
Spring (Sep–Nov)
- Usual max / min
- 18° / 11°
- Rainfall
- 135 mm · ~17 rainy days
Contributes to desirability score · Lifestyle (15%)
Temperature and humidity comfort
Data sources & freshness
- Seasonal climate normals — WorldClim 2.1 · Updated
Future & Planning
Planning & development
Development applications from PlanSA register and EPA licensed activities.
2026· 6 proposals
July 2026
- Construction of a shed (outbuilding) for storage of vehicle and property maintenance equipment - retrospective development11 SEA VISTA RD NEPEAN BAY SA 5223Under Assessment
- Boundary fencing up to 2.4 metres in height and shed (outbuilding) - retrospective development36 NEPEAN ESP NEPEAN BAY SA 5223Under Assessment
June 2026
- Construction of a boundary retaining wall fence up to 3.4 metres in height34 SEA VISTA RD NEPEAN BAY SA 5223Under Assessment
March 2026
- Variation to Development Application 25028904 - change to siting of outbuilding34 SEA VISTA RD NEPEAN BAY SA 5223Under Assessment
- Construction of a single storey detached dwelling and rainwater tankLOT 21 OCEAN VIEW DR NEPEAN BAY SA 5223Under Assessment
January 2026
- Construction of a single storey detached dwelling and garageLOT 217 FLEA CASTLE RD NEPEAN BAY SA 5223Under Assessment
2025· 6 proposals
September 2025
- Construction of an outbuilding34 SEA VISTA RD NEPEAN BAY SA 5223Under Assessment
August 2025
- Variation to Development Application 24022126 – increase floor area of upper level including reconfiguration of deck, internal alterations and change to window opening6 CAPSTAN ST NEPEAN BAY SA 5223Decision Made
- Variation of Development Application 24008729 - construction of new upper level (addition to approved dwelling)86 WESTERN COVE RD NEPEAN BAY SA 5223Decision Made
May 2025
- Construction of a single storey detached detached including carport and deck, ancillary accommodation and garage and associated earthworks and rainwater tank4 HALYARD RD NEPEAN BAY SA 5223Under Assessment
January 2025
- Construction of a domestic store and associated earthworks64 SEA VISTA RD NEPEAN BAY SA 5223Decision Made
- Single storey detached dwelling and 2 x 22,500 litre water tanks34 SEA VISTA RD NEPEAN BAY SA 5223Decision Made
2024· 2 proposals
December 2024
- Two storey detached dwelling, two decks, verandah and 2 x 22,500 litre water tanks.6 CAPSTAN ST NEPEAN BAY SA 5223Under Assessment
May 2024
- Two storey residential dwellingLOT 49 OCEANVIEW DR TAPEROO SA 5017Decision Made
2023· 2 proposals
November 2023
- Construction of a domestic outbuilding7 OCEAN VIEW DR NEPEAN BAY SA 5223Decision Made
February 2023
- Construction of a storage building45 SEA VISTA RD NEPEAN BAY SA 5223Decision Made
2022· 7 proposals
November 2022
- Construction of outbuilding (domestic shed)40 NEPEAN ESP NEPEAN BAY SA 5223Decision Made
October 2022
- Construction of a domestic outbuilding78 NEPEAN ESP NEPEAN BAY SA 5223Decision Made
September 2022
- Shed to house caravan and home workshop with toilet / shower and roof mounted solar panels72 OCEAN VIEW DR NEPEAN BAY SA 5223Decision Made
July 2022
- Single storey detached dwelling and outbuilding50 SEA VISTA RD NEPEAN BAY SA 5223Decision Made
June 2022
- Verandah and deck66 OCEAN VIEW DR NEPEAN BAY SA 5223Decision Made
May 2022
- Construction of a single storey detached dwelling including associated earthworks78 NEPEAN ESP NEPEAN BAY SA 5223Decision Made
February 2022
- Addition to existing residence57 SEA VISTA RD NEPEAN BAY SA 5223Decision Made
2021· 4 proposals
December 2021
- Construction of a single storey detached dwelling and outbuilding including associated water tank44 NEPEAN ESP NEPEAN BAY SA 5223Under Assessment
November 2021
- Construction of a single storey detached dwelling47 SEA VISTA RD NEPEAN BAY SA 5223Under Assessment
August 2021
- Construction of a single storey detached dwelling and associated outbuilding (garage)56 OCEAN VIEW DR NEPEAN BAY SA 5223Decision Made
July 2021
- Construction of a single-storey detached dwelling with ancillary outbuilding58 NEPEAN ESP NEPEAN BAY SA 5223Decision Made
Contributes to desirability score · Future Growth (7%)
Development and planning activity
Data sources & freshness
- PlanSA development applications & EPA licences — Government of South Australia — PlanSA · 2026 · Updated
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
- Bushfire & hazard overlays (SA) — Government of South Australia · current · Updated
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 68.0 km away).
Coalition 61.6%Labor 38.4%
16.6 percentage points more Coalition-leaning than the electorate
Estimated swing since 2022: -14.1 pp toward Coalition
Nearest polling places
- American RiverLabor 42.5% · Coalition 57.5% TPP (2025)10.2 km away
- Special Hospital Team 5Labor 25.0% · Coalition 75.0% TPP (2025)10.8 km away
- KingscoteLabor 44.9% · Coalition 55.1% TPP (2025)11.1 km away
- PenneshawLabor 50.6% · Coalition 49.4% TPP (2025)23.6 km away
- ParndanaLabor 21.6% · Coalition 78.4% TPP (2025)37.4 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
- Federal election results — Australian Electoral Commission · Updated · 2025 election with by-election overlays
Socio-economic
- IRSAD decile (2021)
- 6/10
- IRSD decile (2021)
- 7/10
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
- SEIFA 2021 (IRSAD / IRSD) — Australian Bureau of Statistics · Updated
More in Kangaroo Island Council
Other suburbs in the same local government area.
Comparable suburbs
Similar population and socio-economic profile in other parts of South Australia.