Mount Martha (Vic.)

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According to investigations of ABS population statistics for the surrounding region, combined with fresh street addresses verified by Districts since the Census, the suburb of Mount Martha has a residency count estimated at 20,161 by May 2026. This represents an addition of 315 residents (1.6%) compared to the 2021 Census, which documented 19,846 individuals. This shift is derived from the resident population of 20,161, calculated by Districts using the most recent ERP statistics from the ABS (June 2025) and a further 102 verified new addresses since the Census. Such a population size translates to a density of 667 persons per square kilometer, indicating substantial personal space and capacity for prospective expansion. The 1.6% rise since the census puts the suburb of Mount Martha within 0.4 percentage points of the SA3 region (2.0%), showing healthy local growth characteristics. Population expansion was predominantly fueled by incoming overseas residents, who acted as the sole source of population increases in recent times.

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The suburb of Mount Martha possesses a highly educated labor force with a strong showing in essential services, an unemployment level of only 1.6%, and consistent job numbers over the prior year, according to Districts regional figures. In March 2026, 10,395 local citizens were employed, with the unemployment rate sitting 3.2% lower than the Greater Melbourne average of 4.8%. However, participation in the labor force is much lower, at 62.2% compared to 70.2% in Greater Melbourne. Census records show that a high proportion of residents worked from home, at 31.1%, though this may be affected by pandemic-era lockdowns.

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According to the latest postcode ATO statistics from the 2023 financial year, taxpayers in the suburb of Mount Martha earn a median income of $53,074 and an average of $82,981. This places the area among the highest earning zones in the nation, compared to a median of $57,688 and an average of $75,164 across Greater Melbourne. Adjusting for a 9.62% increase in the Wage Price Index since financial year 2023, the current figures are estimated at roughly $58,180 for the median and $90,964 for the average as of March 2026. Data from the 2021 Census shows that family, household, and individual earnings in the suburb of Mount Martha sit near the 65th percentile across Australia. Weekly earnings of $1,500 - 2,999 are the most common, accounting for 29.7% of residents (5,987 people), which is close to the metropolitan distribution of . High earners are common, with receiving more than each week, showing significant household spending capacity. After meeting mortgage and rent costs, households keep of their income, showing strong financial reserves, and the local SEIFA index for income places the area in the th decile.

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Residential property types in the suburb of Mount Martha at the time of the last Census consisted of 84.3% separate houses and 15.7% alternative housing options like semi-detached units, apartments, or other structures, compared to 67.9% houses and 32.1% alternative types in Greater Melbourne. Home ownership was notably higher than the metropolitan average at 43.9%, while the remaining properties were either held with a mortgage (43.5%) or occupied by tenants (12.5%). The median mortgage payment in the area was higher than the Melbourne metropolitan average at $2,167, and the median weekly rent stood at $496, compared to metropolitan figures of $2,000 and $390 respectively. Nationally, mortgage repayments in the suburb of Mount Martha are well above the Australian median of $1,863, and rents are also much higher than the national median of $375.

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Family units constitute the vast majority of households at 78.2%, which is made up of couples with children at 37.5%, couples without children at 31.1%, and single parent households at 9.1%. The remaining 21.8% consists of non-family households, with single-person households at 20.8% and group living situations representing 1.0%. The median household size is 2.7 individuals, which is slightly larger than the Greater Melbourne average of 2.6.

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Educational attainment levels in the suburb of Mount Martha sit below metropolitan averages, with 29.3% of residents aged 15+ holding a tertiary degree, compared to 37.0% across Greater Melbourne. This difference highlights scope for further educational and professional skills growth. Bachelor qualifications are the most common at 20.1%, followed by postgraduate degrees at 5.3% and graduate diplomas at 3.9%. Vocational and technical qualifications are common, with 36.2% of residents aged 15+ holding vocational credentials, split between advanced diplomas (14.4%) and certificates (21.8%).

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Public transport analysis shows 78 active transit stops in the suburb of Mount Martha, which consist of bus services. These stops are connected by 4 separate routes, which combine to support 805 weekly passenger trips. Transport access is rated as good, with residents living an average of 341 meters from their closest stop. Because the suburb of Mount Martha is predominantly residential, the majority of commuters travel outside the area, with private cars remaining the primary choice for 95% of workers. Household vehicle ownership averages 1.7 cars, which is higher than the regional average. A high proportion of residents, 31.1%, worked from home according to the 2021 Census, which may reflect pandemic conditions.

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Health indicators show positive outcomes across the suburb of Mount Martha based on Districts assessments of mortality and illness rates. The incidence of common health issues is low among the general public and matches national averages for older, higher-risk groups. Private health insurance coverage is exceptionally high, with approximately 60% of the population (12,005 people) covered, compared to 56.7% in Greater Melbourne.

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The suburb of Mount Martha shows lower levels of cultural diversity than average, with 79.1% of residents born in Australia, 91.2% holding citizenship, and 94.9% using only English at home. Christianity is the dominant religion, practiced by 47.1% of the population. The most distinct religious overrepresentation is Judaism, which accounts for 0.3% of the community compared to 1.0% across Greater Melbourne.

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The median age in the suburb of Mount Martha is 47 years, which is much higher than the Greater Melbourne average of 37 and the national average of 38. The 75 - 84 age bracket is highly represented at 11.3% compared to Greater Melbourne, while the 25 - 34 bracket is less common at 5.1%. This concentration of 75 - 84 year olds is well above the national figure of 6.1%. Since the 2021 Census, the 75 to 84 cohort has grown from 8.4% to 11.3% of the population, and the 15 to 24 cohort has risen from 11.4% to 13.7%. Conversely, the 35 to age group fell from to , and the to age group decreased from to . Projections indicate the age profile of the suburb of Mount Martha will shift significantly by . The to group is expected to grow the fastest, rising by or people to reach . Older residents (+) will account for of total population growth, highlighting the aging trend. Meanwhile, population drops are expected in the to and to cohorts.

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Mount Martha currently has an estimated 745 children under 5 years old, comprising approximately 431 children aged 0-2 and 288 children aged 3-4. This cohort declined by an estimated 18% since the previous census. while population forecasts indicate future decline, with an anticipated decrease of 10% by 2041 (to approximately 671 children). Meanwhile the 5-12 cohort currently amounts to 2,076. Birth rates in the area have averaged 6.5 per 1,000 residents over the latest two-year period, a low rate (among the bottom 20% of areas assessed nationally). This rate has slowed down slightly in recent years however.