Mannum

Mannum has seen population growth performance typically on par with national averages when looking at short and medium term trends

As of November 2025, Mannum's population is approximately 7,001, indicating a rise of 407 individuals since the 2021 Census. The population in 2021 was recorded at 6,594 people. This increase is inferred from the estimated resident population of 6,932 as of June 2024 and an additional 105 validated new addresses post-Census date. This results in a population density ratio of 2.1 persons per square kilometer. Over the past decade, Mannum has exhibited steady growth with a compound annual growth rate of 1.2%, surpassing its SA3 area's growth pace. Interstate migration accounted for roughly 82% of overall population gains during recent periods.

AreaSearch employs ABS/Geoscience Australia projections for each SA2 area, released in 2024 using 2022 as the base year. For areas not covered and years post-2032, SA State Government's Regional/LGA projections by age category are adopted, based on 2021 data and adjusted employing a method of weighted aggregation from LGA to SA2 levels. Future population trends anticipate lower quartile growth for Australia's non-metropolitan areas, with Mannum expected to increase by 79 persons to 2041, reflecting a total gain of 0.1% over the 17 years based on the latest annual ERP population numbers.

AreaSearch assessment of residential development activity positions Mannum among the top 25% of areas assessed nationwide

Mannum has received approximately 91 dwelling approvals per year over the past five financial years, totalling 459 homes. As of FY26, 51 approvals have been recorded. On average, 0.8 new residents per year per dwelling constructed were added between FY21 and FY25. The average construction value of new properties is $308,000.

In FY26, Mannum has registered $1.9 million in commercial approvals. Compared to the Rest of SA, Mannum records 133.0% more development activity per person. New building activity comprises 97.0% standalone homes and 3.0% medium and high-density housing. The area has approximately 56 people per dwelling approval. According to AreaSearch's latest quarterly estimate, Mannum is expected to grow by 9 residents through to 2041.

Looking ahead, Mannum is expected to grow by 9 residents through to 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.

Mannum 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 nine projects that may impact the region. Notable ones include Mannum Waters Residential Marina in Mannum, South Australia; Regional North-South Freight Route Upgrade; Summerfield Battery project; and Tanunda Recreation Park Redevelopment. The following list details those most 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.

Employment drivers in Mannum are experiencing difficulties, placing it among the bottom 20% of areas assessed across Australia

Mannum's workforce is balanced across white and blue-collar jobs with varied sector representation. Its unemployment rate was 5.0% as of September 2022.

Employment stability has been relative over the past year. As of September 2025, Mannum had 2,947 residents employed, with an unemployment rate of 4.7%, 0.3% below Rest of SA's rate of 5.3%. Workforce participation was 46.1%, compared to Rest of SA's 54.1%. Key employment sectors included agriculture, forestry & fishing, health care & social assistance, and construction.

Agriculture, forestry & fishing had a significant share at 1.3 times the regional level, while education & training had limited presence at 5.5% compared to the regional 8.2%. AreaSearch analysis of SALM and ABS data showed Mannum's labour force increased by 1.6% from September 2024 to September 2025, with employment decreasing by 0.4%, leading to a 2.0 percentage point rise in unemployment rate. Jobs and Skills Australia forecasts national employment growth of 6.6% over five years and 13.7% over ten years, with varying rates across sectors. Applying these projections to Mannum's employment mix suggests local employment should increase by 5.3% over five years and 11.8% over ten years.

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

AreaSearch's aggregation of ATO data released for financial year 2022 shows Mannum SA2 had a median income among taxpayers of $39,412 and an average level of $47,913. These figures are below the national average. In comparison, Rest of SA had levels of $46,889 and $56,582 respectively. Based on Wage Price Index growth of 12.83% since financial year 2022, current estimates for Mannum would be approximately $44,469 (median) and $54,060 (average) as of September 2025. Census data shows household, family, and personal incomes in Mannum fall between the 1st and 4th percentiles nationally. The predominant income cohort spans 34.2% of locals (2,394 people) in the $400 - $799 category, unlike surrounding regions where 27.5% fall within the $1,500 - $2,999 range. A significant portion of the community faces economic challenges with 45.3% in sub-$800 weekly brackets. Despite modest housing costs allowing for 87.1% income retention, total disposable income ranks at just the 4th percentile nationally.

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

The dwelling structure in Mannum, as per the latest Census, consisted of 94.2% houses and 5.8% other dwellings such as semi-detached homes, apartments, and 'other' dwellings. This compares to Non-Metro SA's 89.9% houses and 10.1% other dwellings. Home ownership in Mannum stood at 51.1%, with the remaining dwellings being mortgaged (31.3%) or rented (17.6%). The median monthly mortgage repayment in Mannum was $1,083, aligning with Non-Metro SA's average. The median weekly rent figure was recorded as $215, compared to Non-Metro SA's figures of $1,083 and $220 respectively. 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 17.2% couples with children, 35.6% couples without children, and 9.0% single parent families. Non-family households account for the remaining 37.2%, with lone person households at 34.8% and group households comprising 2.4%. The median household size is 2.1 people, smaller than the Rest of SA 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 10.7%, significantly lower than Australia's average of 30.4%. This disparity presents both a challenge and an opportunity for targeted educational initiatives. Bachelor degrees are the most common, at 7.8%, followed by graduate diplomas (1.5%) and postgraduate qualifications (1.4%). Vocational credentials are prominent, with 42.3% of residents aged 15+ holding them - advanced diplomas comprise 8.5% and certificates make up 33.8%.

A total of 23.4% of the population is actively pursuing formal education, including 10.0% in primary, 6.9% in secondary, and 1.7% in tertiary education.

No public transport data available for this catchment area.

Health performance in Mannum is a key challenge with a range of health conditions having marked impacts on both younger and older age cohorts

Mannum faces significant health challenges, with a variety of conditions affecting both younger and older residents. Only approximately 46% (~3,220 people) have private health cover, compared to the national average of 55.3%.

The most prevalent medical conditions are arthritis (12.7%) and mental health issues (9.7%). However, 57.5% of residents report being free from medical ailments, slightly lower than the Rest of SA's 61.8%. Mannum has a higher proportion of residents aged 65 and over at 34.7% (2,430 people), compared to Rest of SA's 26.2%.

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, as per the census conducted on Tuesday, August 9, 2016, displayed below-average cultural diversity. The population was predominantly Australian-born citizens, with 88.8% being citizens and 87.9% having been born in Australia. English was spoken at home by 98.1% of the residents.

Christianity emerged as the primary religion, accounting for 46.3% of Mannum's population. Notably, Judaism, comprising 0.1% of Mannum's population, was proportionally similar to the Rest of SA region (also 0.1%). In terms of ancestry, the top three groups were English at 33.7%, Australian at 31.2%, and German at 12.6%. Some ethnic groups showed notable differences in representation compared to regional averages: Dutch at 1.3% in Mannum versus 1.1% regionally, Welsh at 0.5% versus 0.4%, and Polish at 0.6% versus 0.5%.

Mannum ranks among the oldest 10% of areas nationwide

Mannum's median age is 55, notably higher than the Rest of SA figure of 47 and significantly above the Australian median of 38. Compared to Rest of SA, Mannum has a higher proportion of residents aged 65-74 (19.7%), but fewer residents aged 25-34 (7.2%). This 65-74 concentration is well above the national figure of 9.4%. Post-2021 Census data shows that the 75 to 84 age group has grown from 9.6% to 11.7% of Mannum's population, while the 45 to 54 cohort has declined from 13.5% to 11.4%. By 2041, demographic projections indicate significant shifts in Mannum's age structure. The 85+ cohort is projected to grow by 126%, adding 292 residents to reach a total of 525. Demographic aging continues as residents aged 65 and older represent all anticipated growth. Conversely, the 15 to 24 and 0 to 4 age cohorts are expected to experience population declines.