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 is approximately 15,828 as of February 2026. This figure represents a growth of 1,329 people, an increase of 9.2% since the 2021 Census which reported a population of 14,499. The change is inferred from the estimated resident population of 15,173 in June 2024 and an additional 310 validated new addresses since the Census date. This results in a density ratio of 125 persons per square kilometer. Mount Gambier - West's growth rate exceeded that of the SA3 area (6.9%) and the Rest of SA, making it a region leader in population growth. 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. Projected demographic shifts indicate a population increase just below the median for regional areas nationwide by 2041, with Mount Gambier - West expected to grow by 1,725 persons, reflecting a total gain of 6.8% over the 17-year period based on the latest annual ERP population numbers.

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 annually over the past five financial years, from FY21 to FY25. A total of 452 homes were approved during this period, with an additional 55 approved in FY26 as of now. On average, around 1.3 new residents have arrived per year for each new home approved between FY21 and FY25, indicating a balanced supply and demand situation that maintains stable market conditions.

The average construction value of these new homes is $281,000. This financial year has also seen $80.5 million in commercial approvals registered, reflecting high levels of local commercial activity. Compared to the rest of South Australia, Mount Gambier West has experienced slightly more development over the past five years, with a 23.0% increase per capita.

This preserves reasonable buyer options while sustaining existing property demand. However, building activity has slowed in recent years. The majority of recent construction comprises detached dwellings (97.0%), with townhouses or apartments making up the remaining 3.0%, preserving the area's low-density nature and attracting space-seeking buyers who prefer family homes. There are approximately 217 people per dwelling approval in Mount Gambier West, indicating room for growth. According to AreaSearch's latest quarterly estimate, the location is projected to add around 1,070 residents by 2041. Given current development patterns, new housing supply should readily meet demand, providing good conditions for buyers and potentially facilitating further 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 influence an area's performance. AreaSearch has identified 22 projects that could impact the area. Notable projects include CBD Master Planning and Activation, Limestone Estate Residential Development, Road Infrastructure Reconstruction Program, and Blue Lake Sports Park Master Plan Implementation. The following list details those 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, with essential services well represented. The unemployment rate is 4.4%. Over the past year, employment has been relatively stable.

As of September 2025, there are 7,597 residents employed, with an unemployment rate of 3.3%, which is below Rest of SA's rate of 5.3%. Workforce participation is at 63.3%, compared to Rest of SA's 58.5%. According to Census responses, a low 5.0% of residents work from home. The key industries are health care & social assistance, retail trade, and manufacturing.

Mount Gambier - West has a particular specialization in health care & social assistance, with an employment share of 1.2 times the regional level. However, agriculture, forestry & fishing is under-represented, with only 7.4% of the 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%, while employment declined by 0.3%, leading to a rise in unemployment by 1.8 percentage points. By comparison, Rest of SA saw employment growth of 0.3% and labour force growth of 2.3%. Jobs and Skills Australia's national employment forecasts from May-25 suggest that national employment will expand by 6.6% over five years and 13.7% over ten years. However, growth rates vary significantly between industry sectors. Applying these projections to Mount Gambier - West's employment mix indicates local employment should increase by 5.9% over five years and 12.7% over ten years.

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

AreaSearch's data for financial year 2023 shows Mount Gambier - West SA2 had lower than average incomes nationally, with a median of $50,933 and an average of $58,818. This contrasts with Rest of SA's median income of $48,920 and average income of $58,933. Based on Wage Price Index growth of 8.8% since financial year 2023, estimated incomes as of September 2025 would be approximately $55,415 (median) and $63,994 (average). Census data reveals Mount Gambier - West's household, family, and personal incomes fall between the 14th and 26th percentiles nationally. In Mount Gambier - West, 29.7% of individuals (4,700) have incomes ranging from $1,500 to $2,999, similar to metropolitan regions where 27.5% fall within this range. Housing costs are modest, with 86.8% of income retained, but total disposable income ranks at 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 had 75.0% houses and 25.0% other dwellings in the latest Census, compared to Non-Metro SA's 88.5% houses and 11.5% other dwellings. Home ownership was at 32.7%, with mortgaged dwellings at 34.1% and rented ones at 33.2%. The median monthly mortgage repayment was $1,109, below Non-Metro SA's average of $1,153. The median weekly rent figure was $220, equal to Non-Metro SA's figure. Nationally, Mount Gambier - West's median monthly 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, which is 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 the Australian 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, with mortality rates and chronic condition prevalence high among both younger and older age cohorts. Private health cover is low at approximately 48% of the total population (~7660 people), compared to the national average of 55.7%.

Mental health issues affect 9.5% of residents, while arthritis impacts 9.4%. Approximately 63.1% of residents declare themselves completely clear of medical ailments, compared to 62.5% across Rest of SA. The working-age population faces notable health challenges due to elevated chronic condition rates. The area has 23.4% of residents aged 65 and over (3702 people), lower than the 27.1% 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 had a cultural diversity index below the average, with 90.2% of its residents being citizens, 87.9% born in Australia, and 92.8% speaking English only at home. Christianity was the predominant religion, accounting for 41.9% of the population. The most notable overrepresentation was in the 'Other' category, comprising 0.9% compared to 0.8% across the rest of South Australia.

In terms of ancestry, the top three groups were Australian (32.1%), English (31.1%), and Scottish (7.7%). There were also notable differences in the representation of certain ethnic groups: German was overrepresented at 6.0% compared to 8.2% regionally, Dutch at 2.0% compared to 1.3%, and Australian Aboriginal at 2.0% compared to 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 age cohort is notably over-represented at 12.3% locally compared to the Rest of SA average, while the 65-74 year-olds are under-represented at 11.6%. Between 2021 and present, the 35-44 age group has grown from 11.1% to 12.4%, and the 75-84 cohort increased from 7.4% to 8.6%. Conversely, the 45-54 age group has declined from 11.9% to 10.8%. By 2041, demographic modeling suggests that Mount Gambier-West's age profile will change significantly. The 75-84 age cohort is projected to expand by 526 people (39%), from 1,353 to 1,880. Notably, the combined 65+ age groups are projected to account for 75% of total population growth, reflecting the area's aging demographic profile. In contrast, population declines are projected for the 0-4 and 15-24 cohorts.