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

Based on AreaSearch's analysis, Mount Gambier - West's population is around 15,828 as of Feb 2026. This reflects an increase of 1,329 people (9.2%) since the 2021 Census, which reported a population of 14,499 people. The change is inferred from the estimated resident population of 15,173 from the ABS as of June 2024 and an additional 310 validated new addresses since the Census date. This population level equates to a density ratio of 125 persons per square kilometer, providing significant space per person and potential room for further development. Mount Gambier - West's 9.2% growth since the 2021 census exceeded the SA3 area (6.9%) and the Rest of SA, marking it as a growth leader in the region. Population growth for the area was primarily driven by overseas migration, which contributed approximately 65.2% of overall population gains during recent periods.

AreaSearch adopts ABS/Geoscience Australia projections for each SA2 area, as released in 2024 with 2022 as the base year. For any SA2 areas not covered by this data, and for years post-2032, the SA State Government's Regional/LGA projections by age category, released in 2023 and based on 2021 data, are adopted with adjustments made using a method of weighted aggregation of population growth from LGA to SA2 levels. Considering the projected demographic shifts, a population increase just below the median of regional areas across the nation is expected, with the area expected to grow by 1,725 persons to 2041 based on the latest annual ERP population numbers, reflecting a gain of 6.8% in total over the 17 years.

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

Mount Gambier - West has seen around 90 new homes approved each year, with 452 homes approved over the past 5 financial years (between FY-21 and FY-25) and 72 so far in FY-26. At an average of 1.3 new residents per year arriving per new home over the past 5 financial years (between FY-21 and FY-25), supply and demand appear well-balanced, creating stable market conditions, while new homes are being built at an average value of $281,000. Additionally, $80.5 million in commercial approvals have been registered this financial year, demonstrating high levels of local commercial activity.

Compared to the Rest of SA, Mount Gambier - West has slightly more development (23.0% above regional average per person over the 5 year period), preserving reasonable buyer options while sustaining existing property demand, though building activity has slowed in recent years. Recent construction comprises 97.0% detached dwellings and 3.0% townhouses or apartments, preserving the area's low-density nature with an emphasis on detached housing attracting space-seeking buyers. Interestingly, developers are building more traditional houses than the current mix suggests (75.0% at Census), indicating continued strong demand for family homes despite density pressures. The location has approximately 217 people per dwelling approval, indicating room for growth.

Future projections show Mount Gambier - West adding 1,070 residents by 2041 (from the latest AreaSearch quarterly estimate). Based on 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

Nothing can influence an area's performance as much as changes to local infrastructure, major projects, and planning initiatives. In total, 22 projects have been identified by AreaSearch that are likely to have an impact on the area. Key projects include CBD Master Planning and Activation, Limestone Estate Residential Development, Road Infrastructure Reconstruction Program, and Blue Lake Sports Park Master Plan Implementation, with the list below detailing those likely to be of most relevance.

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

Denotes AI-based impression for illustrative purposes only, not to be taken as definitive under any circumstances. Please follow links and conduct other investigations from the project's source for actual imagery. Developers and project owners wishing us to use original imagery please Contact Us and we will do so.

Mount Gambier - West has seen below average employment performance when compared to national benchmarks

Mount Gambier - West possesses a balanced workforce spanning white and blue collar employment, with essential services sectors well represented, an unemployment rate of 4.5%, and 1.8% in estimated employment growth over the past year. As of December 2025, 7,674 residents are in work while the unemployment rate is 1.2% below Regional SA's rate of 5.7%, and workforce participation is well beyond standard (64.0% compared to Regional SA's 58.8%). Based on Census responses, a low 5.0% of residents were found to work from home, though Covid-19 lockdown impacts should be considered.

The key industries of employment among residents are health care & social assistance, retail trade, and manufacturing. The area has a particular employment specialization in health care & social assistance, with an employment share of 1.2 times the regional level. On the other hand, agriculture, forestry & fishing is under-represented, with only 7.4% of Mount Gambier - West's workforce compared to 14.5% in Regional SA. While local employment opportunities exist in the area, it appears many residents commute elsewhere for work, based on the count of Census working population to local population.

Based on AreaSearch analysis of SALM and ABS data, during the year to December 2025, employment levels increased by 1.8% and the labour force increased by 3.7%, resulting in unemployment rising by 1.7 percentage points. By comparison, Regional SA recorded employment growth of 0.7%, labour force growth of 3.1%, with unemployment rising 2.2 percentage points. Jobs and Skills Australia's national employment forecasts from May-25 can offer further insight into potential future demand within Mount Gambier - West. These projections, covering five and ten-year periods, have been mapped against the local employment profile to estimate growth patterns. While national employment is forecast to expand by 6.6% over five years and 13.7% over ten years, growth rates differ significantly between industry sectors. Applying these industry-specific projections to Mount Gambier - West's employment mix suggests local employment should increase by 5.9% over five years and 12.7% over ten years (please note this is a simple weighting extrapolation for illustrative purposes and does not take into account localised population projections).

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

AreaSearch's latest postcode level ATO data for FY-23 reveals that income in the Mount Gambier - West SA2 is lower than average on a national basis, with the median assessed at $50,933 while the average income stands at $58,818. This contrasts with Regional SA's figures of a median income of $48,920 and an average income of $58,933. Based on Wage Price Index growth of 8.8% since FY-23, current estimates would be approximately $55,415 (median) and $63,994 (average) as of September 2025. Census data reveals household, family and personal incomes in Mount Gambier - West all fall between the 14th and 26th percentiles nationally. The data shows 29.7% of the population (4,700 individuals) fall within the $1,500 - 2,999 income range, reflecting patterns seen in the metropolitan region where 27.5% similarly occupy this range. While housing costs are modest with 86.8% of income retained, the 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

Dwelling structure within Mount Gambier - West, as evaluated at the latest Census, comprised 75.0% houses and 25.0% other dwellings (semi-detached, apartments, 'other' dwellings), in comparison to Regional SA's 88.5% houses and 11.5% other dwellings. Meanwhile, the level of home ownership within Mount Gambier - West lagged that of Regional SA, at 32.7%, with the remainder of dwellings either mortgaged (34.1%) or rented (33.2%). The median monthly mortgage repayment in the area was below the Regional SA average at $1,109, while the median weekly rent figure was recorded at $220, compared to Regional SA's $1,153 and $220. Nationally, Mount Gambier - West's mortgage repayments are significantly lower than the Australian average of $1,863, while rents are 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 dominate at 62.9% of all households, comprising 23.4% couples with children, 27.2% couples without children, and 11.3% single parent families. Non-family households make up the remaining 37.1%, with lone person households at 35.1% and group households comprising 2.1% of the total. The median household size of 2.2 people is smaller than the Regional 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 faces educational challenges, with university qualification rates (13.8%) substantially below the Australian average of 30.4%. This represents both a challenge and an opportunity for targeted educational initiatives. Bachelor degrees lead at 10.0%, followed by postgraduate qualifications (2.0%) and graduate diplomas (1.8%). Trade and technical skills feature prominently, with 38.3% of residents aged 15+ holding vocational credentials, including advanced diplomas (7.8%) and certificates (30.5%).

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, based on AreaSearch's assessment of mortality rates and chronic condition prevalence. Common health conditions are somewhat prevalent across both younger and older age cohorts, and the rate of private health cover is very low at approximately 48% of the total population (~7,660 people). The national average is 55.7%.

The most common medical conditions in the area are mental health issues and arthritis, impacting 9.5% and 9.4% of residents, respectively, while 63.1% declared themselves as completely clear of medical ailments compared to 62.5% across Regional SA. The working-age population faces notable health challenges with elevated chronic condition rates. The area has 23.4% of residents aged 65 and over (3,702 people), which is lower than the 27.1% in Regional 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 was found to be below average in terms of cultural diversity, with 90.2% of its population being citizens, 87.9% born in Australia, and 92.8% speaking English only at home. The main religion in Mount Gambier - West is Christianity, which makes up 41.9% of people. However, the most apparent overrepresentation was in Other, which comprises 0.9% of the population, compared to 0.8% across Regional SA.

In terms of ancestry (country of birth of parents), the top three represented groups in Mount Gambier - West are Australian, comprising 32.1% of the population, English, comprising 31.1% of the population, and Scottish, comprising 7.7% of the population. Additionally, there are notable divergences in the representation of certain other ethnic groups: German is represented at 6.0% of Mount Gambier - West (vs 8.2% regionally), Dutch at 2.0% (vs 1.3%) and Australian Aboriginal at 2.0% (vs 3.3%).

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

Mount Gambier - West's median age of 41 years stands notably under Regional SA's 47 though somewhat older than the national norm of 38. Compared to the Regional SA average, the 25 - 34 cohort is notably over-represented (12.3% locally), while 65 - 74 year-olds are under-represented (11.6%). In the period since 2021, the 35 to 44 age group has grown from 11.1% to 12.4% of the population, while the 75 to 84 cohort increased from 7.4% to 8.6%. Conversely, the 45 to 54 cohort has declined from 11.9% to 10.8%. Demographic modeling suggests Mount Gambier - West's age profile will evolve significantly by 2041. The 75 to 84 age cohort is projected to see notable expansion, growing by 526 people (39%) from 1,353 to 1,880. Notably, the combined 65+ age groups will account for 75% of total population growth, reflecting the area's aging demographic profile. In contrast, population declines are projected for the 0 to 4 and 15 to 24 cohorts.