Mount Maria Postcode

Queensland

Outer Regional Bottom 20% SEIFA
4674
Postcode for Mount Maria, QLD
Phone area code: 07 · 346 km from Brisbane · Pop. 225
225
Population
53
Median Age
$879
Household Income/wk
$263
Median Rent/wk
1/10
SEIFA Advantage
99.8
Area (km²)

Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.

Where Mount Maria ranks: household income sits in the bottom 25% of QLD suburbs; SEIFA decile 1 places it in the bottom 20% of Australia for socio-economic advantage.

How Mount Maria Compares

Mount Maria vs the QLD average and the national average (2021 Census, population-weighted).

MetricMount MariaQLD avgAU avg
Household income/wk $879 -QLD $1,770 $1,836
Rent/wk $263 -QLD $380 $390
Mortgage/month $972 -QLD $1,774 $1,958
Median age 53 44.0 45.0
SEIFA decile 1/10 -QLD 4.0/10 6.0/10
Unemployment 26.5% +QLD 6.0% 5.0%

Green pill = at least 10% above the QLD average; red = at least 10% below; grey = within 10%. For unemployment, colour polarity is inverted: lower is better.

Mount Maria is a locality 346 km from Brisbane in Queensland, classified as outer regional by the ABS. The postcode is 4674. It falls within the Wide Bay region. The local government area is Gladstone.

According to the 2021 Census, Mount Maria has a population of 225 with a median age of 53. The median weekly household income is $879, below the QLD average. The unemployment rate is 26.5%, higher than the QLD average. The Indigenous population is 16 (7.1% of residents).

Housing in Mount Maria includes a median weekly rent of $263, median monthly mortgage repayment of $972, with 89 total dwellings. Housing costs in the area sit below the QLD average. Owner-occupied dwellings (owned or mortgaged) make up 91.2% of housing.

On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Mount Maria scores in decile 1 out of 10, which is well below the national average.

Mount Maria is part of the Burnett statistical area in Queensland.

Mount Maria Details

Postcode4674
StateQueensland (QLD)
Phone Area Code07
Population (2021)225
Median Age53 years
Median Household Income (Census 2021)$879/week
Median Personal Income (Census 2021)$428/week
Median Weekly Rent (Census 2021)$263
Median Monthly Mortgage (Census 2021)$972
Average Household Size2.3 persons
Area99.8 km²
Population Density2/km²
Total Dwellings89
Australian Citizens84.4%
Indigenous Population16 (7.1%)
Unemployment Rate26.5%
SEIFA IRSAD Decile1/10 (well below average)
Latitude-24.5527401
Longitude151.8220871
Distance from Brisbane346 km
Region (SA4)Wide Bay
Area (SA3)Burnett
Local GovernmentGladstone
Federal ElectorateFlynn

Age Profile

0–14 (11.1%) 15–24 (12.9%) 25–44 (13.8%) 45–64 (35.1%) 65+ (26.7%)
Show counts
0–14 years25 (11.1%)
15–24 years29 (12.9%)
25–44 years31 (13.8%)
45–64 years79 (35.1%)
65+ years60 (26.7%)

Housing Tenure

Owned outright (54.9%) Mortgaged (36.3%) Rented (8.8%)

SEIFA Socio-economic Index

Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 1 of 10. Higher deciles indicate more advantage.

Health Conditions (2021 Census)

Arthritis43 (19.1%)
Asthma28 (12.4%)
Heart Disease15 (6.7%)
Diabetes13 (5.8%)
Cancer11 (4.9%)
Lung Condition7 (3.1%)

Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.

Motor Vehicles per Dwelling

No vehicle0 (0.0%)
1 vehicle21 (24.7%)
2 vehicles34 (40.0%)
3+ vehicles30 (35.3%)

Suburbs Near Mount Maria

Same Postcode (4674)

More Mount Maria Data

Page last reviewed . Data sources: Australian Bureau of Statistics 2021 Census (CC BY 4.0), SEIFA 2021 IRSAD, ACARA school profiles 2025. How this data is sourced.