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This analysis uses ABS Statistical Areas Level 2 (SA2) boundaries, which can materially differ from Suburbs and Localities (SAL) even when sharing similar names.
SA2 boundaries are defined by the Australian Bureau of Statistics and are designed to represent communities for statistical reporting (e.g., census and ERP).
Suburbs and Localities (SAL) represent commonly-used suburb/locality names (postal-style areas) and may use different geographic boundaries. For comprehensive analysis, consider reviewing both boundary types if available.
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ABS ERP | -- people | --
2021 Census | -- people
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Mount Gambier - West has an estimated 15,464 residents, up from 14,499 at the 2021 Census — a change of 965 people, or 6.7%. Growth has averaged 0.7% a year over five years. 314 new addresses have been validated here since Census night. Overseas migration accounts for 81.0% of that increase. That puts 122 residents on each square kilometre. Population is estimated from ABS Estimated Resident Population releases and GNAF address data, re-based from the 2021 Census and updated annually.
Detail
According to the analysis by AreaSearch, the population of Mount Gambier - West is approximately 15,464 as of May 2026. This represents a growth of 965 individuals (6.7%) from the 14,499 residents recorded in the 2021 Census. This population adjustment is calculated using the ABS estimated resident population of 15,284 from June 2025, alongside 314 validated new addresses identified since the Census. With these figures, the population density stands at 122 persons per square kilometer, indicating low density and capacity for future expansion. The 6.7% growth rate of Mount Gambier - West since the 2021 census was higher than the 4.9% growth in the SA3 area and also outpaced the Rest of SA, positioning the locality as a leader in regional growth.
The primary driver for this population rise was overseas migration, which accounted for roughly 81.0% of the overall population increase during recent times. Projections from ABS and Geoscience Australia, published in 2024 with a 2022 baseline, are utilized by AreaSearch for each SA2 area. In cases where SA2 data is unavailable, and for periods beyond 2032, regional and LGA projections by age bracket published by the SA State Government in 2023 (using 2021 data) are applied, adjusted using a weighted aggregation method of population growth from LGA to SA2 levels. Based on these anticipated demographic trends, the region is projected to experience population growth slightly below the median of regional localities nationwide, with the population set to rise by 1,675 individuals by 2041 compared to the latest annual ERP statistics, representing a total increase of 9.7% over the 16 years.
Frequently Asked Questions - Population
452 new dwellings have been approved in Mount Gambier - West over the past five years, an average of 90 a year. That places the area in the 63rd percentile for residential development activity nationally, about 6 approvals per 1,000 residents a year. Of the 65 dwellings approved in the latest reporting year, 97% were detached houses and the rest townhouses or apartments. Approvals are currently running at an annualised 115, running ahead of that longer-run average. Figures come from ABS building approvals aggregated to this SA2 boundary and are updated monthly as the ABS releases them.
Detail
Mount Gambier - West has averaged approximately 90 residential development approvals annually, resulting in 452 new homes over the last 5 financial years. In the current FY-26 period, 106 approvals have been documented. The local market appears stable and balanced, with an average of 1.1 individuals migrating to the area for every new dwelling constructed between FY-21 and FY-25. The average construction value of these new residential builds is $281,000. Furthermore, commercial approvals totaling $80.5 million have been registered during this financial year, pointing to strong commercial activity in the locality.
Mount Gambier - West exhibits a slightly higher rate of development than the Rest of SA, tracking 23.0% higher than the regional per capita average over the 5 year period, which maintains choice for buyers while supporting property demand, even though construction rates have declined lately. Detached houses made up 97.0% of recent building activity, while townhouses or apartments accounted for 3.0%, reinforcing the low-density character of the area which favors single-family homes that appeal to buyers looking for space. Developers are opting for traditional houses at a higher rate than the baseline proportion from the Census (75.0%), showing that demand for family residences remains resilient despite density pressures. The area has approximately 218 people per dwelling approval, indicating room for growth. According to the latest quarterly estimates from AreaSearch, Mount Gambier - West is projected to add 1,495 residents by 2041. Based on current trends in construction, future housing supply is expected to satisfy demand, creating favorable buyer conditions and potentially enabling population growth to exceed current forecasts.
Frequently Asked Questions - Development
Development applications around Mount Gambier - West
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| Lodged | Address | Description | Type | Distance | Status |
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SOURCE: Planning portals and council registers, compiled by AreaSearch. Distance & bearing measured from the suburb midpoint.
AreaSearch tracks 8 current infrastructure and development projects inside Mount Gambier - West, worth an estimated $214 million. A further 60 sit in the immediately surrounding suburbs, taking the tracked pipeline within reach of the area to $11.7 billion. 12 are already under construction and 24 are due for completion within three years. The pipeline spans transport & logistics, energy and communities, precincts & urban renewal. Records are compiled from Infrastructure Australia, state agencies, council planning portals and public announcements, reviewed and updated daily, then ranked by proximity, construction stage, completion horizon and project scale.
Detail
Developments in local infrastructure, major projects, and planning play a significant role in regional performance. AreaSearch has identified 22 projects expected to influence the area. Key developments include the Limestone Estate Residential Development, CBD Master Planning and Activation, the Road Infrastructure Reconstruction Program, and the Blue Lake Sports Park Master Plan Implementation, with details on the most relevant projects listed below.
Professional plan users can use the search below to filter and access additional projects.
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Frequently Asked Questions - Infrastructure
Road Infrastructure Reconstruction Program
Comprehensive road network upgrades across Mount Gambier focusing on CBD revitalization and safety. Key components include the Lake Terrace and Bay Road intersection upgrade, significant road reconstruction on Lake Terrace East, and streetscape widening on Commercial Street East to protect heritage sites like Jens Hotel. The program also integrates a region-wide 2026 Road Resealing Program and the phased rollout of 40 km/h school speed limits on arterial roads.
CBD Master Planning and Activation
Strategic revitalisation of the Mount Gambier CBD aimed at activating the city centre through short-term initiatives and long-term infrastructure improvements. The project involves the completion of a detailed Master Plan, Commercial Street pedestrianisation concepts, and better integration with key precincts like the Railway Lands. It aligns with the Mount Gambier 2035 community vision and the Council 2024-2028 Strategic Plan.
Limestone Estate
Large residential land estate on the western fringe of Mount Gambier, planned for more than 350 residential allotments with a commercial complex, childcare centre, medical centre and retail facilities. The estate is less than 5 minutes drive from the Mount Gambier CBD and is being delivered by Capital Investments & Developments.
Lakes Park Estate
A residential land development in OB Flat, close to the Blue Lake and Mount Gambier. Currently in Stage 4 of development offering level allotments ranging from 591m2 to 700m2 with volcanic soils. All services included: NBN, gas, and fencing. Within walking distance to Blue Lake and walking trails, close to Swallow Drive shops. Marketed by SAL Real Estate Mount Gambier.
Wulanda Recreation and Convention Centre
State-of-the-art multi-purpose sport, aquatic and conference facility featuring 25m indoor pool, 50m outdoor pool, six multi-purpose courts, convention facilities for 1000+ people, and health club. Council's largest ever infrastructure project valued at $57 million.
Blue Lake Solar Lighting Renewal Project
Installation of solar-powered LED lighting system around Blue Lake walking trails and viewing areas. Includes 150 solar light units, upgraded pathways, and interpretive signage. Part of sustainable tourism infrastructure development.
Springview Estate
Mount Gambier's premier residential development currently in Stage 11 of its popular and thriving subdivision. Located on the western edge of Mount Gambier, this family-friendly estate offers allotment sizes ranging from 855m2 to 1,210m2. All allotments include essential infrastructure (power, water, sewer, NBN) and colorbond fencing. The estate features quality built homes and is positioned with close links to Mount Gambier's Rail Trail, Basketball Stadium and local amenities. Titles for Stage 11 to be issued July 2025.
TAFE SA Mount Gambier Campus Upgrades
Upgrade of the TAFE SA Mount Gambier campus including modern trade workshops, improved learning spaces, student amenities, accessibility upgrades and campus improvements. The works form part of the Mount Gambier Education, Research and Training Precinct and are being delivered alongside the new Limestone Coast Technical College scheduled to open in 2026.
7,768 residents of Mount Gambier - West are employed, from a labour force of 8,115. Unemployment sits at 4.3%, with participation at 64.1%. Weighted for its industry mix, the area's sectors are forecast to grow about 5.9% nationally over five years. That reflects industry composition only and makes no allowance for local population growth. Unemployment and labour force come from ABS Small Area Labour Markets, updated quarterly; the industry and occupation profile is from the 2021 Census.
Detail
The workforce in Mount Gambier - West is balanced between white-collar and blue-collar occupations, with a solid representation of essential service industries. The area has an unemployment rate of 4.3% and saw a 3.3% rise in estimated employment over the last year. In March 2026, 7,768 residents were employed, and the unemployment rate was 1.2% lower than the Regional SA rate of 5.5%. Workforce participation was also significantly higher, standing at 64.1% compared to 58.4% in Regional SA. Census data indicated that a minimal 5.0% of residents worked from home, though this figure may have been influenced by COVID-19 lockdown measures.
The primary employment sectors for residents are health care & social assistance, retail trade, and manufacturing. The locality shows a high concentration in health care & social assistance, employing residents at 1.2 times the regional rate. Conversely, agriculture, forestry & fishing is less common, employing 7.4% of the Mount Gambier - West workforce compared to 14.5% in Regional SA. Although local positions are available, the discrepancy between the Census working population and the local job count suggests many residents travel outside the area for employment. AreaSearch analysis of SALM and ABS statistics indicates that for the year ending March 2026, employment grew by 3.3% and the labour force expanded by 4.3%, which led to a 0.9 percentage point increase in the unemployment rate. Over the same timeframe, Regional SA experienced a 1.2% increase in employment, a 2.6% expansion of the labour force, and a 1.4 percentage point rise in unemployment. National employment projections released by Jobs and Skills Australia in May-25 offer additional context on future demand in Mount Gambier - West. These five and ten-year forecasts have been applied to the local workforce structure to model potential growth. Nationally, employment is projected to grow by 6.6% over five years and 13.7% over ten years, with performance varying by sector. Weighting these projections against the employment profile of Mount Gambier - West suggests local jobs could grow by 5.9% over five years and 12.7% over ten years, representing a basic extrapolation for illustrative purposes that does not incorporate local population projections.
Frequently Asked Questions - Employment
Median household income in Mount Gambier - West is $1,210 a week (about $63,000 a year), with median personal income at $690 a week. ATO records put median taxable income at $50,933 a year against an average of $58,818. Household income is from the 2021 Census; taxable income is from ATO Taxation Statistics for the latest financial year available, indexed forward using the ABS Wage Price Index.
Detail
The latest postcode-level ATO statistics compiled by AreaSearch for the 2023 financial year show that incomes in the Mount Gambier - West SA2 are below the national average, with a median of $50,933 and an average of $58,818. This compares to a median of $48,920 and an average of $58,933 across Regional SA. Adjusting for a Wage Price Index growth of 10.17% since the 2023 financial year, current estimates stand at approximately $56,113 for the median and $64,800 for the average as of March 2026. According to Census data, household, family, and individual incomes in Mount Gambier - West are situated between the 14th and 26th percentiles nationally.
The figures show that 29.7% of the population (4,592 individuals) earn within the $1,500 - 2,999 range, which is comparable to the metropolitan region where 27.5% fall into this bracket. Although living expenses are moderate, leaving residents with 86.8% of their income, total disposable income sits at the 17th percentile nationally.
Frequently Asked Questions - Income
Mount Gambier - West had 5,993 occupied dwellings at the 2021 Census, 75% detached houses and 10% apartments. 34% are owned with a mortgage, 33% rented and 33% owned outright. At that Census the median rent was $220 a week and the median mortgage repayment $1,109 a month. Rent absorbs 18.2% of household income here and mortgage repayments 21.2%. Dwelling stock, tenure and housing costs are 2021 Census measures — the only source that counts dwellings at this boundary size.
Detail
According to the last Census, the housing composition of Mount Gambier - West consisted of 75.0% separate houses and 25.0% alternative dwellings (including semi-detached properties, apartments, and other housing types), compared to 88.5% houses and 11.5% other dwellings in Regional SA. Home ownership in Mount Gambier - West was lower than the Regional SA average, recorded at 32.7%, with the remaining properties being mortgaged (34.1%) or rented (33.2%). The median monthly mortgage payment of $1,109 was below the Regional SA average of $1,153, while the median weekly rent matched the regional figure at $220.
On a national level, mortgage repayments in Mount Gambier - West are notably lower than the Australian average of $1,863, and weekly rents are also well below the national median of $375.
Frequently Asked Questions - Housing
Mount Gambier - West counted 5,993 households at the 2021 Census, an estimated 6,392 today, averaging 2.2 people each. 23% are couples with children, fewer than in 75% of areas nationally, against 27% couples without children. 35% of households are people living alone, and families average 1.8 children. Household and family composition is measured only by the Census, so these are 2021 figures.
Detail
Family households constitute the majority at 62.9% of all households, consisting of 23.4% couples with children, 27.2% couples without children, and 11.3% single-parent households. Non-family households account for the remaining 37.1%, consisting of lone-person households at 35.1% and group households at 2.1%. The median household size of 2.2 people is slightly smaller than the Regional SA average of 2.3.
Frequently Asked Questions - Households
13.8% of adults in Mount Gambier - West hold a university qualification, including 10.0% with a bachelor degree and 2.0% with postgraduate qualifications, lower than 82% of areas nationally. A further 30.5% hold a vocational qualification. 8 schools serve the area, with 3,369 enrolment places and an average ICSEA of 962 against a national benchmark of 1,000. Qualifications come from the 2021 Census; school enrolments, ICSEA and results come from ACARA's current release.
Detail
The locality displays low levels of higher education, with university graduation rates at 13.8%, well below the national average of 30.4%. This highlights a clear area for educational development. Among university graduates, bachelor degrees are the most common at 10.0%, followed by postgraduate degrees at 2.0% and graduate diplomas at 1.8%. Vocational education is prominent, with 38.3% of residents aged 15+ holding technical qualifications, split between advanced diplomas (7.8%) and certificates (30.5%). Engagement in education is high in the area, with 26.6% of the population currently enrolled in a course of study.
This consists of 11.0% attending primary school, 7.4% in high school, and 2.4% enrolled in tertiary institutions.
Frequently Asked Questions - Education
Schools Detail
Getting around Mount Gambier - West means driving: households keep an average of 1.3 vehicles, and no scheduled public transport appears in the current timetable feeds. Service data is built from operators' published GTFS timetables; vehicle ownership is from the 2021 Census.
Frequently Asked Questions - Transport
Transport Stops Detail
63.1% of residents in Mount Gambier - West report no long-term health condition. 7.2% need daily assistance with core activities, and 48.4% hold private health cover. The standardised death rate runs at 5.4 per 1,000 residents. Health conditions, assistance needs and insurance are 2021 Census measures; the death rate comes from current ABS releases.
Detail
Mount Gambier - West displays notable health difficulties, as indicated by AreaSearch's evaluation of mortality and chronic illness rates, with health conditions prevalent among both younger and older cohorts. Additionally, the rate of private health insurance coverage is very low, encompassing approximately 48% of the population (~7,484 people) compared to the national average of 55.7%. Mental health conditions and arthritis are the most frequently reported medical diagnoses, affecting 9.5% and 9.4% of residents, respectively. Meanwhile, 63.1% of the population reported no chronic conditions, slightly above the 62.5% recorded across Regional SA.
The working-age cohort shows elevated rates of chronic illness. Residents aged 65 and over make up 23.8% of the local population (3,674 people), which is lower than the 27.1% representation in Regional SA. Health indicators among the elderly show some challenges, with national rankings aligning closely with general population trends.
Frequently Asked Questions - Health
Mount Gambier - West is largely Australian-born, at 87.9% of residents, with 7.2% speaking a language other than English at home. The largest reported ancestries are Australian (32.1%) and English (31.1%). Ancestry, language and country of birth are counted only by the Census, so these are 2021 figures.
Detail
Cultural diversity in Mount Gambier - West is lower than average, with citizens making up 90.2% of the population, Australian-born individuals representing 87.9%, and 92.8% of residents speaking only English at home. Christianity is the dominant religion, practiced by 41.9% of the population. The most distinct statistical variation is in the Other religious category, which represents 0.9% of the population compared to 0.8% across Regional SA. Regarding ancestry, the three most common backgrounds reported in Mount Gambier - West are Australian (32.1%), English (31.1%), and Scottish (7.7%). There are also notable differences in other ethnic groups, with German ancestry recorded at 6.0% (compared to 8.2% regionally), Dutch at 2.0% (compared to 1.3% regionally), and Australian Aboriginal at 2.0% (compared to 3.3% regionally).
Frequently Asked Questions - Diversity
The median resident of Mount Gambier - West is 41. 23.9% of residents are aged 15 to 34. Age cohorts are not raw Census counts: the Census split is re-based to the latest ABS population estimates and state projections.
Detail
The median age of 41 years in Mount Gambier - West is lower than the Regional SA average of 47, but older than the national median of 38. The 25 - 34 age bracket is over-represented locally at 12.2% compared to the regional baseline, while the 65 - 74 bracket is under-represented at 11.6%. Since 2021, the proportion of residents aged 75 to 84 has risen from 7.4% to 8.7%, and the 35 to 44 age cohort has increased from 11.1% to 12.4%. Conversely, the 45 to 54 cohort decreased from 11.9% to 10.7%.
Projections indicate that the age profile will change significantly by 2041. The 75 to 84 cohort is expected to grow by 569 people (42%), from 1,346 to 1,916. The 65 and over age groups will represent 73% of total population growth, showing a clear aging trend. In contrast, population declines are projected for the 0 to 4 and 35 to 44 cohorts.
Frequently Asked Questions - Age
Data & MethodBoundaries, Sources & Method for Mount Gambier - West
9 of 14 data sections on this page were updated within the last 12 months — the newest current to Aug 2026.
Everything is aggregated to the SA2 boundary shown above, on a 2021 Census baseline. Only 3 sections — housing, households and cultural diversity — still wait on the 2026 Census.
The ledger — source, cycle and currency by section
| Section | Source & update cycle | Currency |
|---|---|---|
| Updated within the last 12 months 9 sections | ||
| Population | ABS, GNAF, Geoscience Australia Annual (ABS ERP) | May 2026 3 months ago headline measures · 2021 Census baseline |
| Re-based to the ABS Estimated Resident Population (June 2025 release) and updated with new dwellings from GNAF address data. Current to May 2026, with the 2021 Census supplying the small-area baseline. | ||
| Age profile | ABS, Geoscience Australia, State governments Annual | May 2026 3 months ago headline measures · 2021 Census baseline |
| Age cohorts are re-based to the latest ABS population estimates and state projections, current to May 2026. Each cohort is held as a Census baseline and a current estimate. | ||
| Development & approvals | ABS, GNAF Monthly (ABS approvals) | Jun 2026 2 months ago headline measures · May 2026 baseline |
| Property sales & rents | Valuer General, Rental Board, ABS Weekly sales, quarterly rents | Aug 2026 this month all 21 measures |
| Sales from the state Valuer General register, refreshed weekly, and rents from quarterly rental bond lodgements. Both are read live each time this page loads, current to Aug 2026. | ||
| Infrastructure projects | Infrastructure Australia, State agencies, Local governments Daily | May 2026 3 months ago all 8 projects tracked here |
| Project pipeline maintained continuously from Infrastructure Australia, state agencies, local government and public announcements. Records are added and revised daily; this area was last updated May 2026. | ||
| Employment | ABS, DEWR, JSA Quarterly (ABS SALM) | Mar 2026 5 months ago headline measures · 2021 Census baseline |
| Unemployment and labour force from ABS Small Area Labour Markets, current to Mar 2026. The growth outlook applies Department of Employment (now Jobs and Skills Australia) forecasts for all 19 industry divisions to the local industry mix, so it measures sector composition rather than local expansion and makes no allowance for population growth. Job demand comes from the same agency via its Internet Vacancy Index; industry and occupation structure from the 2021 Census. | ||
| Education | ABS, ACARA Annual (ACARA) | Aug 2026 this month headline measures · 2021 Census baseline |
| Transport | ABS, State Transport Departments Each timetable release | Jul 2026 last month headline measures · 2021 Census baseline |
| Services & amenities | Provider directories, ACECQA Continuous | Jul 2026 last month all 14 measures |
| Annual and financial-year sources 2 sections | ||
| Income | ABS, ATO Annual (ATO) | FY 2023 3 years ago headline measures · 2021 Census baseline |
| ATO taxable income statistics for FY 2023, indexed forward using the Wage Price Index. Census household income provides the distribution detail. | ||
| Health | ABS, ATO Annual | 2024 2 years ago headline measures · 2021 Census baseline |
| Census-measured — next update: 2026 Census 3 sections No more current small-area source exists for these, so they are labelled as Census-measured rather than implied to be current. | ||
| Housing | ABS 5-yearly (Census) | 2021 Census next update 2026 all 30 measures |
| Households | ABS 5-yearly (Census) | 2021 Census next update 2026 all 18 measures |
| Cultural diversity | ABS, Geoscience Australia 5-yearly (Census) | 2021 Census next update 2026 all 44 measures |
"Currency" is the most recent release feeding that section. Where the Census supplies the structural baseline underneath a current headline figure, the row says so.
How the numbers are built
Population
The Census provides the small-area baseline, aggregated from mesh blocks to this boundary. It is then re-based to the ABS Estimated Resident Population (June 2025 release), and new dwellings built since Census night are counted from address data — 314 validated new addresses here. The headline figure is therefore a current estimate for May 2026, not a 2021 count (14,499 at the 2021 Census → 15,464 now). Annual growth rates are compound (CAGR), not simple averages.
Age profile
Cohort shares are not raw Census counts. Every cohort is held as a pair — the Census baseline and a current estimate — and the split is re-based using ERP and state population projections, current to May 2026. Median age is the Census median plus modelled change since. Charts that show both are labelled "2021 Census vs Current Estimate".
Property sales
Sourced from the state valuation authority's sales register — current, not Census, and refreshed weekly. Medians are calculated from settled transactions in the period shown; periods with very low transaction counts are flagged or suppressed, because a handful of sales can move a median substantially.
Rents
Derived from state rental bond lodgement data, by dwelling type and bedroom count. Bonds are lodged at the start of a new tenancy, so this reflects new lettings, not the whole rented stock.
Development & infrastructure
Building approvals come from current ABS releases; development applications are collected from council and state planning portals; the infrastructure pipeline is compiled from Infrastructure Australia and local government sources. Applications are matched to this boundary by address or coordinates, so very recent lodgements may not yet appear.
Employment & income
Industry and occupation structure comes from the Census, but the headline labour-market indicators do not. Unemployment and labour force are derived from ABS Small Area Labour Markets (quarterly). The employment outlook applies Department of Employment forecasts for all 19 industry divisions to this area's own industry mix (the agency is now Jobs and Skills Australia), as does the Internet Vacancy Index used for job demand. Because it is weighted on industry composition alone, that outlook carries no allowance for local population growth — in fast-growing areas the real rise in local jobs will typically be higher. Income combines Census household income with ATO taxable-income statistics for FY 2023, indexed forward using the Wage Price Index.
Education, transport & amenities
School enrolments, ICSEA and performance come from ACARA's current release, not the Census. Public transport stops and service frequency are derived from GTFS timetable feeds published by state transport departments. Services and amenities are proximity and count scores built from provider directories, refreshed on their own cycle. The Census contributes only the travel-to-work and qualification measures.
Rankings and benchmarks. Where we rank this area, the comparison set is every area of the same boundary type — suburbs against suburbs, SA2s against SA2s. Benchmarks compare this area against its greater capital city region and the national figure for the same measure and period.
Limits worth knowing. Small areas carry larger error margins, and the ABS introduces small random adjustments to Census counts to protect confidentiality — so totals may not sum exactly. Estimates re-based from regional data describe the area's expected trajectory, not a direct count of it. Figures are indicative for research and are not financial, planning or valuation advice.
Cross-check us. The Census baseline for this boundary is at ABS 2021 Census QuickStats (407021174). QuickStats reports 2021 only — the figures on this page are more current wherever the ledger shows a later date.