Marian

Marian lies within the top quartile of areas nationally for population growth performance according to AreaSearch analysis of recent, and medium to long-term trends

Analysis of ABS population updates for the broader area and new addresses validated by AreaSearch indicates that the estimated population of Marian as of Feb 2026 is around 4,597. This reflects an increase of 373 people (8.8%) since the 2021 Census, which reported a population of 4,224 people. The change is inferred from the resident population of 4,425 estimated by AreaSearch following examination of the latest ERP data release by the ABS in June 2024 and an additional 8 validated new addresses since the Census date. This level of population equates to a density ratio of 55 persons per square kilometer. Marian's 8.8% growth since the 2021 census exceeded that of the SA3 area (7.1%) and the SA4 region, marking it as a growth leader in the region. Population growth for the suburb was primarily driven by natural growth contributing approximately 63.0% of overall population gains during recent periods, although all drivers including interstate migration and overseas migration were positive factors.

AreaSearch is adopting ABS/Geoscience Australia projections for each SA2 area, as released in 2024 with 2022 as the base year. For areas not covered by this data and years post-2032, Queensland State Government's SA2 area projections released in 2023 based on 2021 data are adopted. However, these state projections do not provide age category splits; hence where utilised, AreaSearch is applying proportional growth weightings in line with the ABS Greater Capital Region projections released in 2023 based on 2022 data for each age cohort. Examination of future population trends indicates an above median population growth of locations outside of capital cities is projected, with the suburb expected to grow by 896 persons to 2041 based on aggregated SA2-level projections, reflecting an increase of 15.7% in total over the 17 years.

Residential development activity is lower than average in Marian according to AreaSearch's national comparison of local real estate markets

AreaSearch analysis of ABS building approval numbers in Marian shows approximately 4 new homes approved annually over the past five financial years, totalling around 24 homes. As of FY-26, there have been 5 approvals recorded. The average number of new residents arriving per year per dwelling constructed between FY-21 and FY-25 is 11. This exceeds new supply, indicating potential price growth and increased buyer competition.

New dwellings are developed at an average cost of $513,000, slightly above the regional average. Commercial approvals in Marian for FY-26 totalled $2.1 million, suggesting minimal commercial development activity. Compared to the rest of Queensland, Marian has seen reduced construction levels, with 70.0% below the regional average per person. This limited new supply generally supports stronger demand and values for established dwellings. Nationally, Marian's construction levels are also below average, possibly due to planning constraints or area maturity.

All new construction in Marian since FY-21 has been detached houses, preserving its low-density nature and attracting space-seeking buyers. The estimated population per dwelling approval is 882 people. By 2041, Marian is forecasted to gain 722 residents. If current construction levels persist, housing supply may lag behind population growth, potentially intensifying buyer competition and underpinning price growth.

Marian has strong levels of nearby infrastructure activity, ranking in the top 30% nationally

Five projects identified by AreaSearch are expected to influence the local area significantly. These key initiatives include Nabilla Meadows Estate, Peak Downs Highway Safety Upgrades between Mackay and Eton, Marian Reservoir Upgrade, and Nell Baker Park Upgrade. The following details the projects deemed most relevant.

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

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Employment conditions in Marian rank among the top 10% of areas assessed nationally

Marian's workforce spans white and blue collar jobs with strong representation in manufacturing and industrial sectors. Its unemployment rate is 1.3% and it has seen an estimated employment growth of 5.1% over the past year, as per AreaSearch aggregation of statistical area data. As of September 2025, Marian has 2,472 residents employed with an unemployment rate of 2.8%, below Rest of Qld's 4.1%.

Workforce participation is high at 75.3% compared to Rest of Qld's 65.7%. Census responses show a low 6.9% of residents work from home, potentially impacted by Covid-19 lockdowns. Leading employment industries are mining, healthcare & social assistance, and retail trade. Marian has a strong specialization in mining with an employment share of 5.1 times the regional level, while health care & social assistance shows lower representation at 11.1% compared to the regional average of 16.1%.

Employment opportunities locally appear limited based on Census working population vs resident population data. Over the 12 months to September 2025, Marian's employment increased by 5.1%, labour force by 4.7%, reducing the unemployment rate by 0.4 percentage points. Rest of Qld recorded lower employment growth at 1.7% with a rise in unemployment by 0.3 percentage points. Jobs and Skills Australia's national employment forecasts from May-25 project national employment growth of 6.6% over five years and 13.7% over ten years, varying significantly between sectors. Applying these projections to Marian's employment mix suggests local employment should increase by 5.3% over five years and 12.0% over ten years, though this is a simple weighting extrapolation for illustrative purposes and does not consider localized population projections.

The economic profile demonstrates exceptional strength, placing the area among the top 10% nationally based on comprehensive AreaSearch income analysis

AreaSearch's latest postcode level ATO data for financial year 2023 shows Marian's median income among taxpayers is $71,473 and the average is $86,063. Nationally, these figures are extremely high compared to Rest of Qld's median of $53,146 and average of $66,593. Based on Wage Price Index growth since financial year 2023 until September 2025 (an increase of 9.91%), estimated current incomes would be approximately $78,556 median and $94,592 average. Marian's household, family, and personal incomes ranked highly nationally between the 79th to 87th percentiles in the 2021 Census. The earnings profile shows that 35.6% of residents (1,636 people) fall within the $1,500 - $2,999 weekly bracket, reflecting regional patterns where 31.7% occupy this range. Notably, 36.9% earn more than $3,000 weekly, indicating strong purchasing power in the community. Housing accounts for 14.3% of income, with residents ranking within the 88th percentile for disposable income. The area's SEIFA income ranking places it in the 5th decile.

Marian is characterized by a predominantly suburban housing profile, with ownership patterns similar to the broader region

In Marian, as per the latest Census, 99.0% of dwellings were houses with the remaining 1.0% being other types such as semi-detached, apartments, and 'other' dwellings. This compares to Non-Metro Qld's figures of 76.4% houses and 23.6% other dwellings. Home ownership in Marian stood at 21.9%, with mortgaged properties at 59.8% and rented ones at 18.3%. The median monthly mortgage repayment was $1,941, higher than Non-Metro Qld's average of $1,655. The median weekly rent in Marian was recorded at $400, compared to Non-Metro Qld's figure of $375. Nationally, Marian's monthly mortgage repayments exceed the Australian average of $1,863, while rents are higher than the national figure of $375.

Marian features high concentrations of family households, with a higher-than-average median household size

Family households account for 87.1% of all households, consisting of 48.0% couples with children, 28.7% couples without children, and 9.1% single parent families. Non-family households constitute the remaining 12.9%, with lone person households at 11.4% and group households making up 1.9%. The median household size is 3.0 people, which is larger than the Rest of Qld average of 2.5.

Educational outcomes in Marian fall within the lower quartile nationally, indicating opportunities for improvement in qualification attainment

The area's university qualification rate is 10.3%, significantly lower than the Australian average of 30.4%. This disparity presents both a challenge and an opportunity for targeted educational initiatives. Bachelor degrees are most common at 8.1%, followed by graduate diplomas (1.3%) and postgraduate qualifications (0.9%). Vocational credentials are prevalent, with 50.8% of residents aged 15+ holding such qualifications, including advanced diplomas (8.4%) and certificates (42.4%).

Educational participation is high, with 36.1% of residents currently enrolled in formal education. This includes 16.9% in primary education, 9.9% in secondary education, and 2.6% pursuing tertiary education.

Transport servicing is very low compared to other areas nationally based on assessment of service frequency, route connectivity and accessibility

Marian has eight operational public transport stops, all serving buses. These stops are covered by one route, offering ten weekly passenger trips in total. Transport access is limited, with residents typically 708 meters away from the nearest stop. Most residents commute outwards, primarily using cars (95%). Average vehicle ownership per dwelling is 2.0, higher than the regional average. Only 6.9% of residents work from home, as recorded in the 2021 Census.

Service frequency averages one trip daily across all routes, resulting in about one weekly trip per stop.

Marian's residents are healthier than average in comparison to broader Australia with prevalence of common health conditions quite low among the general population though higher than the nation's average across older, at risk cohorts

Marian residents have experienced relatively positive health outcomes, as per AreaSearch's analysis. Mortality rates and health conditions align broadly with national benchmarks. The prevalence of common health conditions is low among Marian's general population, but higher in older, at-risk cohorts compared to national averages.

Private health cover is exceptionally high, at approximately 61% of the total population (2,817 people), compared to Rest of Qld's 52.5% and the national average of 55.7%. The most prevalent medical conditions are asthma and mental health issues, affecting 8.5 and 6.4% of residents respectively. A significant majority, 75%, report being completely free from medical ailments, compared to Rest of Qld's 67.6%. Working-age residents exhibit low chronic condition prevalence. As of 2021, the area has 9.4% of residents aged 65 and over (432 people), lower than Rest of Qld's 20.4%. While health outcomes among seniors present some challenges, they rank lower nationally than the broader population.

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

Marian's population showed low cultural diversity, with 89.6% being citizens, 94.1% born in Australia, and 98.5% speaking English only at home. Christianity was the predominant religion, accounting for 53.6%, slightly higher than the Rest of Qld average of 52.2%. The top three ancestry groups were Australian (34.1%), English (29.0%), and Irish (7.6%).

Notably, Maltese (3.5%) and German (3.9%) were overrepresented compared to regional averages of 0.4% and 4.7%, respectively. Maori representation was also higher at 0.9%.

Marian hosts a very young demographic, ranking in the bottom 10% of areas nationwide

Marian's median age is 32 years, which is considerably lower than the Rest of Qld average of 41 and substantially under the Australian median of 38. Compared to Rest of Qld, Marian has a higher concentration of 5-14 year-olds at 17.6%, but fewer 65-74 year-olds at 5.9%. This 5-14 concentration is well above the national average of 12.1%. Between the 2021 Census and the current time, the 75 to 84 age group has grown from 2.2% to 3.1% of the population. Conversely, the 45 to 54 cohort has declined from 13.1% to 11.5%, and the 5 to 14 group has dropped from 19.0% to 17.6%. Demographic modeling suggests that Marian's age profile will evolve significantly by 2041. The 25 to 34 cohort is projected to grow strongly, adding 187 residents to reach 909. Meanwhile, the 15 to 24 group is expected to contract by 21 residents.