Mount Gambier - West

An assessment of population growth drivers in Mount Gambier - West reveals an overall ranking slightly below national averages considering recent, and medium term trends

Mount Gambier - West's population was approximately 15,800 as of November 2025. This figure represents an increase of 1,301 people since the 2021 Census, which reported a population of 14,499. The growth is inferred from the estimated resident population of 15,173 in June 2024 and an additional 238 validated new addresses since the Census date. This results in a density ratio of 124 persons per square kilometer. Mount Gambier - West's population grew by 9.0% between the 2021 Census and November 2025, outpacing the SA3 area (6.6%) and the Rest of SA. Overseas migration contributed approximately 65.2% of overall population gains during recent periods.

AreaSearch uses ABS/Geoscience Australia projections for each SA2 area, released in 2024 with a base year of 2022. For areas not covered by this data and years post-2032, the SA State Government's Regional/LGA projections are adopted, based on 2021 data and adjusted using weighted aggregation methods. Based on projected demographic shifts, Mount Gambier - West is expected to increase by approximately 1,725 persons to reach a total population of around 17,524 by 2041. This represents an overall growth rate of approximately 7.0% over the 17-year period from 2024 to 2041.

Recent residential development output has been above average within Mount Gambier - West when compared nationally

Mount Gambier West has seen approximately 90 new homes approved each year. Over the past five financial years, from FY21 to FY25, around 452 homes were approved, with an additional 55 approved so far in FY26. On average, about 1.3 new residents have arrived per new home annually over these five years, indicating a balanced supply and demand, leading to stable market conditions.

The average construction cost value for new homes has been around $281,000. This financial year, $80.5 million in commercial approvals have been registered, reflecting high levels of local commercial activity. Compared to the rest of South Australia, Mount Gambier West has seen slightly more development, with 23.0% above the regional average per person over the past five years.

This preserves reasonable buyer options while sustaining existing property demand. Recent construction in the area comprises predominantly detached dwellings (97.0%) and a smaller proportion of townhouses or apartments (3.0%), preserving its low-density nature and attracting space-seeking buyers. Interestingly, developers are building more traditional houses than the current mix suggests, indicating strong demand for family homes despite density pressures. The location has approximately 217 people per dwelling approval, suggesting room for growth. Future projections estimate Mount Gambier West to add around 1,098 residents by 2041, based on the latest AreaSearch quarterly estimate. Given current development patterns, new housing supply should readily meet demand, offering good conditions for buyers and potentially facilitating population growth beyond current projections.

Mount Gambier - West has limited levels of nearby infrastructure activity, ranking in the 6thth percentile nationally

Changes to local infrastructure significantly impact an area's performance. AreaSearch has identified 22 projects likely affecting the region. Notable initiatives include CBD Master Planning and Activation, Limestone Estate Residential Development, Road Infrastructure Reconstruction Program, and Blue Lake Sports Park Master Plan Implementation. The following details projects likely most relevant:.

Professional plan users can use the search below to filter and access additional projects.

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Employment performance in Mount Gambier - West has been below expectations when compared to most other areas nationally

Mount Gambier - West has a balanced workforce with both white and blue collar jobs. The unemployment rate is 4.4%. Over the past year, employment has been relatively stable.

As of September 2025, 7,597 residents are employed while the unemployment rate is 1.0% lower than Rest of SA's rate of 5.3%. Workforce participation is similar to Rest of SA at 63.5%. According to Census data, a low 5.0% of residents work from home. The key industries for employment among residents are health care & social assistance, retail trade, and manufacturing.

Mount Gambier - West has a particular specialisation in health care & social assistance, with an employment share that is 1.2 times the regional level. However, agriculture, forestry & fishing is under-represented, with only 7.4% of Mount Gambier - West's workforce compared to 14.5% in Rest of SA. Many residents commute elsewhere for work based on Census data. Between September 2024 and September 2025, the labour force increased by 1.6%, but employment declined by 0.3%, leading to a rise in unemployment of 1.8 percentage points. In comparison, Rest of SA recorded employment growth of 0.3% and an increase in unemployment of 1.9 percentage points. Jobs and Skills Australia's national employment forecasts from May-25 suggest that Mount Gambier - West's employment should increase by 5.9% over five years and 12.7% over ten years, based on industry-specific projections.

Income figures position the area below 75% of locations analysed nationally by AreaSearch

AreaSearch's latest postcode level ATO data for financial year 2023 shows that Mount Gambier - West SA2 has lower than average income on a national basis. The median income is $50,933 and the average income is $58,818. In contrast, Rest of SA's figures are a median income of $48,920 and an average income of $58,933. Based on Wage Price Index growth of 8.8% since financial year 2023, current estimates would be approximately $55,415 (median) and $63,994 (average) as of September 2025. Census data reveals that household, family and personal incomes in Mount Gambier - West all fall between the 14th and 26th percentiles nationally. The data shows that 29.7% of the population (4,692 individuals) fall within the $1,500 - 2,999 income range, similar to metropolitan regions where 27.5% occupy this range. Housing costs are modest with 86.8% of income retained, but total disposable income ranks at just the 17th percentile nationally.

Mount Gambier - West is characterized by a predominantly suburban housing profile, with a higher proportion of rental properties than the broader region

Mount Gambier - West's dwelling structures, as per the latest Census, consisted of 75.0% houses and 25.0% other dwellings (semi-detached, apartments, 'other' dwellings). In contrast, Non-Metro SA had 88.5% houses and 11.5% other dwellings. Home ownership in Mount Gambier - West stood at 32.7%, with mortgaged dwellings at 34.1% and rented ones at 33.2%. The median monthly mortgage repayment was $1,109, lower than Non-Metro SA's average of $1,153. The median weekly rent was recorded at $220, matching Non-Metro SA's figure. Nationally, Mount Gambier - West's mortgage repayments were significantly lower at $1,109 compared to the Australian average of $1,863, and rents were substantially below the national figure of $375.

Mount Gambier - West features high concentrations of lone person households, with a lower-than-average median household size

Family households constitute 62.9% of all households, including 23.4% couples with children, 27.2% couples without children, and 11.3% single parent families. Non-family households comprise the remaining 37.1%, with lone person households at 35.1% and group households comprising 2.1%. The median household size is 2.2 people, smaller than the Rest of SA average of 2.3.

Mount Gambier - West faces educational challenges, with performance metrics placing it in the bottom quartile of areas assessed nationally

The area's university qualification rate is 13.8%, significantly lower than Australia's average of 30.4%. Bachelor degrees are the most common at 10.0%, followed by postgraduate qualifications (2.0%) and graduate diplomas (1.8%). Vocational credentials are prevalent, with 38.3% of residents aged 15+ holding them, including advanced diplomas (7.8%) and certificates (30.5%). Educational participation is high, with 26.6% of residents currently enrolled in formal education, comprising 11.0% in primary, 7.4% in secondary, and 2.4% in tertiary education.

Educational participation is notably high, with 26.6% of residents currently enrolled in formal education. This includes 11.0% in primary education, 7.4% in secondary education, and 2.4% pursuing tertiary education.

No public transport data available for this catchment area.

Health performance in Mount Gambier - West is lower than average with common health conditions somewhat prevalent across both younger and older age cohorts

Mount Gambier West faces significant health challenges, as assessed by AreaSearch's analysis of mortality rates and chronic condition prevalence. Common health conditions are somewhat prevalent across both younger and older age cohorts.

The rate of private health cover is very low at approximately 48% of the total population (around 7,647 people), compared to the national average of 55.7%. Mental health issues and arthritis were found to be the most common medical conditions in the area, impacting 9.5 and 9.4% of residents respectively. About 63.1% of residents declared themselves completely clear of medical ailments, compared to 62.5% across Rest of SA. The working-age population faces notable health challenges with elevated chronic condition rates. The area has 22.8% of residents aged 65 and over (3,594 people), which is lower than the 26.5% in Rest of SA. Health outcomes among seniors present some challenges, with national rankings broadly in line with the general population.

Mount Gambier - West ranks below the Australian average when compared to other local markets across a number of language and cultural background related metrics

Mount Gambier-West has a population that is predominantly culturally homogeneous, with 90.2% being citizens, 87.9% born in Australia, and 92.8% speaking English only at home. Christianity is the dominant religion, comprising 41.9% of the population. However, the category 'Other' is slightly overrepresented compared to the rest of South Australia, making up 0.9% versus 0.8%.

The top three ancestry groups are Australian (32.1%), English (31.1%), and Scottish (7.7%). Notably, German (6.0%) and Dutch (2.0%) ancestry are overrepresented compared to regional averages of 8.2% and 1.3%, respectively. Additionally, the representation of Australian Aboriginal ancestry is lower at 2.0% compared to the regional average of 3.3%.

Mount Gambier - West's population is slightly older than the national pattern

Mount Gambier - West has a median age of 41 years, which is lower than Rest of SA's 47 but higher than the national norm of 38. The 25-34 cohort is notably over-represented in Mount Gambier - West at 12.4%, while the 65-74 year-olds are under-represented at 11.4%. Between 2021 and present, the 35 to 44 age group has increased from 11.1% to 12.2% of the population. Conversely, the 45 to 54 cohort has decreased from 11.9% to 11.0%. By 2041, demographic modeling suggests significant changes in Mount Gambier - West's age profile. The 75 to 84 age cohort is projected to expand by 581 people (45%), from 1,298 to 1,880. Notably, the combined 65+ age groups will account for 79% of total population growth, indicating an aging demographic profile. In contrast, population declines are projected for the 35 to 44 and 15 to 24 cohorts.