Mannum

Population growth drivers in Mannum are strong compared to national averages based on AreaSearch's ranking of recent, and medium to long-term trends

Based on analysis of ABS population updates for the broader area, and new addresses validated by AreaSearch, the suburb of Mannum's population is estimated at around 3,139 as of Feb 2026. This reflects an increase of 220 people (7.5%) since the 2021 Census, which reported a population of 2,919 people. The change is inferred from the resident population of 2,962, estimated by AreaSearch following examination of the latest ERP data release by the ABS in June 2024, and an additional 40 validated new addresses since the Census date. This level of population equates to a density ratio of 12.2 persons per square kilometer. Mannum's 7.5% growth since the 2021 census exceeded the SA3 area (7.4%), marking it as a growth leader in the region. Population growth for the area was primarily driven by interstate migration, contributing approximately 82.0% of overall population gains during recent periods.

AreaSearch is adopting ABS/Geoscience Australia projections for each SA2 area, released in 2024 with 2022 as the base year. For areas not covered by this data and years post-2032, the SA State Government's Regional/LGA projections by age category are adopted, released in 2023 and based on 2021 data, with adjustments made employing a method of weighted aggregation of population growth from LGA to SA2 levels. Moving forward with demographic trends, a population increase just below the median of regional areas across the nation is expected. The suburb of Mannum is expected to grow by 148 persons to 2041 based on aggregated SA2-level projections, reflecting a gain of 3.7% in total over the 17 years.

Recent residential development output has been above average within Mannum when compared nationally

AreaSearch analysis of ABS building approval numbers shows Mannum had approximately 31 new homes approved annually. Between FY-21 and FY-25, around 159 homes were approved, with 19 more in FY-26 as of now. Over the past five financial years, about 1.2 people moved to the area per dwelling built.

This suggests a balanced supply and demand, maintaining stable market conditions. The average construction value for new properties is around $415,000, indicating developers focus on premium markets with high-end developments. In FY-26, commercial approvals totalled $292,000, reflecting Mannum's predominantly residential focus. Compared to the Rest of SA, Mannum has 81.0% more building activity per person, providing buyers with greater choice.

Recent building activity consists solely of detached dwellings, preserving Mannum's traditional low-density character and appealing to those seeking spacious family homes. With approximately 60 people per dwelling approval, Mannum exhibits growth area characteristics. AreaSearch's latest quarterly estimate projects Mannum will gain 117 residents by 2041. Given current development patterns, new housing supply should meet demand, creating favourable conditions for buyers and potentially facilitating population growth beyond projections.

Mannum has emerging levels of nearby infrastructure activity, ranking in the 25thth percentile nationally

AreaSearch has identified two projects that could impact the area significantly due to changes in local infrastructure. Among these key projects are Mannum Waters Residential Marina in Mannum, South Australia, and the Regional North-South Freight Route Upgrade. Additionally, SA Water's Capital Work Delivery Contracts and Public Housing Maintenance and Services Contracts are also notable initiatives. The following list details those projects most likely to be relevant:.

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.

AreaSearch assessment indicates Mannum faces employment challenges relative to the majority of Australian markets

Mannum's workforce is balanced across white and blue collar jobs, with significant representation in essential services. The unemployment rate was 6.0% as of September 2025, according to AreaSearch data aggregation from statistical areas. In this month, 1,111 residents were employed, which was 0.7% higher than the Rest of SA's rate of 5.3%.

Workforce participation in Mannum was lower at 47.2%, compared to Rest of SA's 58.5%. Census responses indicated that only 7.4% of residents worked from home, although Covid-19 lockdown impacts may have influenced this figure. Employment was concentrated in health care & social assistance, retail trade, and construction sectors. Mannum showed particular specialization in health care & social assistance, with an employment share 1.3 times the regional level, while agriculture, forestry & fishing had lower representation at 8.0% compared to the regional average of 14.5%.

The area appeared to offer limited local employment opportunities, as indicated by the ratio of Census working population to resident population. Over the 12 months to September 2025, labour force levels increased by 1.6%, while employment decreased by 0.9%, leading to a rise in unemployment rate by 2.4 percentage points. In contrast, Rest of SA experienced employment growth of 0.3% and labour force growth of 2.3%, with an increase in unemployment rate by 1.9 percentage points. Jobs and Skills Australia's national employment forecasts from May-25 suggest that Mannum's employment should increase by 6.0% over five years and 12.8% over ten years, based on industry-specific projections applied to the local employment mix.

Income metrics place the area in the bottom 10% of locations nationally according to AreaSearch analysis

In AreaSearch's latest data released for financial year 2023, Mannum's median income among taxpayers is $38,007. The average income in Mannum is $46,205. Both figures are below the national average. In comparison, Rest of SA has a median income of $48,920 and an average of $58,933. Based on Wage Price Index growth, current estimates for Mannum's median income would be approximately $41,352 by September 2025, with the average being around $50,271. According to Census 2021 data, incomes in Mannum fall between the 0th and 2nd percentiles nationally for households, families, and individuals. Income analysis shows that the largest segment in Mannum comprises 38.3% of residents earning $400 - $799 weekly. This contrasts with metropolitan regions where the $1,500 - $2,999 bracket leads at 27.5%. The prevalence of lower-income residents indicates constrained household budgets across much of Mannum. Housing affordability pressures are severe, with only 84.8% of income remaining after housing costs, ranking at the 3rd percentile nationally.

Mannum is characterized by a predominantly suburban housing profile, with above-average rates of outright home ownership

In Mannum, as per the latest Census evaluation, 92.2% of dwellings were houses, with the remaining 7.8% being semi-detached homes, apartments, or other types of dwellings. This is compared to Non-Metro SA's figures of 88.5% houses and 11.5% other dwellings. Home ownership in Mannum stood at 47.3%, with mortgaged dwellings making up 26.2% and rented ones comprising 26.5%. The median monthly mortgage repayment was $1,100, lower than Non-Metro SA's average of $1,153. The median weekly rent in Mannum was recorded at $220, matching Non-Metro SA's figure. Nationally, Mannum's mortgage repayments were significantly lower than the Australian average of $1,863, while rents were substantially below the national figure of $375.

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

Family households constitute 62.8% of all households, including 14.7% couples with children, 36.2% couples without children, and 10.9% single parent families. Non-family households comprise the remaining 37.2%, with lone person households at 35.6% and group households at 1.7%. The median household size is 2.1 people, which is smaller than the Rest of South Africa average of 2.3.

Mannum faces educational challenges, with performance metrics placing it in the bottom quartile of areas assessed nationally

The area's university qualification rate is 8.9%, significantly lower than Australia's average of 30.4%. Bachelor degrees are the most common at 6.4%, followed by postgraduate qualifications (1.3%) and graduate diplomas (1.2%). Vocational credentials are prevalent, with 41.9% of residents aged 15+ holding them - advanced diplomas at 9.0% and certificates at 32.9%. A total of 23.7% of the population is actively engaged in formal education, including 10.3% in primary, 6.2% in secondary, and 2.1% in tertiary education.

A substantial 23.7% of the population actively pursues formal education. This includes 10.3% in primary education, 6.2% in secondary education, and 2.1% pursuing tertiary education.

No public transport data available for this catchment area.

Health performance in Mannum is well below average with prevalence of common health conditions notable across both younger and older age cohorts

Mannum faces significant health challenges, as indicated by AreaSearch's assessment. Mortality rates and chronic condition prevalence are substantial across both younger and older age groups. Private health cover is extremely low at approximately 45% of Mannum's total population (around 1,422 people), compared to 48.9% in the rest of South Australia and a national average of 55.7%.

The most prevalent medical conditions are arthritis, affecting 13.0% of residents, and mental health issues, impacting 10.1%. Conversely, 55.2% of Mannum residents report having no medical ailments, compared to 62.5% in the rest of South Australia. Working-age population health is notably challenging due to high chronic condition rates. Mannum has a higher proportion of seniors, with 38.9% of residents aged 65 and over (1,221 people), compared to 27.1% in the rest of South Australia. Health outcomes among seniors present some challenges, largely aligning with national rankings for the general population.

The latest Census data sees Mannum placing among the least culturally diverse areas in the country when compared across a range of language and cultural background related metrics

Mannum's cultural diversity was found to be below average, with 88.4% of its population being Australian citizens, born in Australia (87.8%), and speaking English only at home (98.4%). Christianity was the predominant religion, comprising 46.4% of Mannum's population. Notably, Judaism, which is not represented regionally, made up 0.2% of Mannum's population.

The top three ancestry groups were English (34.6%), Australian (31.6%), and German (11.0%). Some ethnic groups showed notable divergences: Dutch was overrepresented at 1.4% in Mannum compared to the regional average of 1.3%, Welsh was similarly represented at 0.5% in both Mannum and regionally, while Polish was slightly higher at 0.6% in Mannum versus 0.4% regionally.

Mannum ranks among the oldest 10% of areas nationwide

Mannum's median age is 56 years, which is notably higher than Rest of SA's 47 and well above Australia's median age of 38. The age profile shows that those aged 65-74 make up a significant portion at 19.8%, while the 35-44 group is smaller at 6.9% compared to Rest of SA. This concentration of 65-74 year-olds is higher than the national average of 9.5%. Between 2021 and present, the 75-84 age group has increased from 12.1% to 14.5% of Mannum's population, while the 45-54 cohort has decreased from 11.6% to 9.0%. By 2041, demographic projections show significant shifts in Mannum's age structure. The 85+ age group is projected to grow exceptionally, increasing by 176 people (122%) from 144 to 321. Senior residents aged 65 and above will drive all population growth, indicating a trend towards demographic aging. Conversely, populations in the 15-24 and 0-4 age groups are projected to decline.