Grasstree Beach Postcode

Queensland

Outer Regional Above QLD income
4740
Postcode for Grasstree Beach, QLD
Phone area code: 07 · 779 km from Brisbane · Pop. 717
717
Population
49
Median Age
$2,050
Household Income/wk
$290
Median Rent/wk
4/10
SEIFA Advantage
15.7
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 Grasstree Beach ranks: household income is in the top 25% of QLD suburbs.

How Grasstree Beach Compares

Grasstree Beach vs the QLD average and the national average (2021 Census, population-weighted).

MetricGrasstree BeachQLD avgAU avg
Household income/wk $2,050 +QLD $1,770 $1,836
Rent/wk $290 -QLD $380 $390
Mortgage/month $1,733 ≈QLD $1,774 $1,958
Median age 49 44.0 45.0
SEIFA decile 4/10 ≈QLD 4.0/10 6.0/10
Unemployment 5.5% ≈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.

Grasstree Beach is a locality 779 km from Brisbane in Queensland, classified as outer regional by the ABS. The postcode is 4740. It falls within the Mackay - Isaac - Whitsunday region. The local government area is Mackay.

According to the 2021 Census, Grasstree Beach has a population of 717 with a median age of 49. The median weekly household income is $2,050, above the QLD average. The unemployment rate is 5.5%. The Indigenous population is 40 (5.6% of residents).

Housing in Grasstree Beach includes a median weekly rent of $290, median monthly mortgage repayment of $1,733, with 281 total dwellings. Housing costs in the area sit below the QLD average. Owner-occupied dwellings (owned or mortgaged) make up 82.0% of housing.

On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Grasstree Beach scores in decile 4 out of 10, which is below the national average.

Grasstree Beach is part of the Mackay statistical area in Queensland.

Grasstree Beach Details

Postcode4740
StateQueensland (QLD)
Phone Area Code07
Population (2021)717
Median Age49 years
Median Household Income (Census 2021)$2,050/week
Median Personal Income (Census 2021)$862/week
Median Weekly Rent (Census 2021)$290
Median Monthly Mortgage (Census 2021)$1,733
Average Household Size2.3 persons
Area15.7 km²
Population Density46/km²
Total Dwellings281
Australian Citizens88.0%
Indigenous Population40 (5.6%)
Unemployment Rate5.5%
SEIFA IRSAD Decile4/10 (below average)
Latitude-21.3468431
Longitude149.2822491
Distance from Brisbane779 km
Region (SA4)Mackay - Isaac - Whitsunday
Area (SA3)Mackay
Local GovernmentMackay
Federal ElectorateDawson

Age Profile

0–14 (13.7%) 15–24 (10.2%) 25–44 (21.9%) 45–64 (35.0%) 65+ (19.9%)
Show counts
0–14 years98 (13.7%)
15–24 years73 (10.2%)
25–44 years157 (21.9%)
45–64 years251 (35.0%)
65+ years143 (19.9%)

Housing Tenure

Owned outright (43.1%) Mortgaged (39.0%) Rented (18.0%)

SEIFA Socio-economic Index

Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 4 of 10. Higher deciles indicate more advantage.

Health Conditions (2021 Census)

Arthritis80 (11.2%)
Heart Disease49 (6.8%)
Asthma46 (6.4%)
Diabetes44 (6.1%)
Cancer36 (5.0%)
Lung Condition15 (2.1%)
Dementia3 (0.4%)

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 vehicle83 (31.2%)
2 vehicles115 (43.2%)
3+ vehicles68 (25.6%)

Suburbs Near Grasstree Beach

Same Postcode (4740)

More Grasstree Beach 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.