Grantham Postcode

Queensland

Inner Regional Bottom 20% SEIFA
4347
Postcode for Grantham, QLD
Phone area code: 07 · 82 km from Brisbane · Pop. 796
796
Population
36
Median Age
$1,406
Household Income/wk
$290
Median Rent/wk
2/10
SEIFA Advantage
49.3
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 Grantham ranks: SEIFA decile 2 places it in the bottom 20% of Australia for socio-economic advantage.

How Grantham Compares

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

MetricGranthamQLD avgAU avg
Household income/wk $1,406 -QLD $1,770 $1,836
Rent/wk $290 -QLD $380 $390
Mortgage/month $1,300 -QLD $1,774 $1,958
Median age 36 44.0 45.0
SEIFA decile 2/10 -QLD 4.0/10 6.0/10
Unemployment 4.5% -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.

Grantham is a locality 82 km from Brisbane in Queensland, classified as inner regional by the ABS. The postcode is 4347. It falls within the Toowoomba region. The local government area is Lockyer Valley.

According to the 2021 Census, Grantham has a population of 796 with a median age of 36. The median weekly household income is $1,406, below the QLD average. The unemployment rate is 4.5%, lower than the QLD average. The Indigenous population is 42 (5.3% of residents).

Housing in Grantham includes a median weekly rent of $290, median monthly mortgage repayment of $1,300, with 257 total dwellings. Housing costs in the area sit below the QLD average. Owner-occupied dwellings (owned or mortgaged) make up 82.1% of housing.

On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Grantham scores in decile 2 out of 10, which is well below the national average.

Grantham is served by Grantham State School.

Grantham is part of the Toowoomba statistical area in Queensland.

Grantham Details

Postcode4347
StateQueensland (QLD)
Phone Area Code07
Population (2021)796
Median Age36 years
Median Household Income (Census 2021)$1,406/week
Median Personal Income (Census 2021)$634/week
Median Weekly Rent (Census 2021)$290
Median Monthly Mortgage (Census 2021)$1,300
Average Household Size2.7 persons
Area49.3 km²
Population Density16/km²
Total Dwellings257
Australian Citizens84.9%
Indigenous Population42 (5.3%)
Unemployment Rate4.5%
SEIFA IRSAD Decile2/10 (well below average)
Latitude-27.583333
Longitude152.2
Distance from Brisbane82 km
Region (SA4)Toowoomba
Area (SA3)Toowoomba
Local GovernmentLockyer Valley
Federal ElectorateWright

Age Profile

0–14 (17.8%) 15–24 (14.9%) 25–44 (27.4%) 45–64 (24.4%) 65+ (14.7%)
Show counts
0–14 years142 (17.8%)
15–24 years119 (14.9%)
25–44 years218 (27.4%)
45–64 years194 (24.4%)
65+ years117 (14.7%)

Housing Tenure

Owned outright (37.0%) Mortgaged (45.1%) Rented (17.9%)

SEIFA Socio-economic Index

Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 2 of 10. Higher deciles indicate more advantage.

Health Conditions (2021 Census)

Arthritis107 (13.4%)
Asthma79 (9.9%)
Diabetes52 (6.5%)
Heart Disease30 (3.8%)
Cancer23 (2.9%)
Lung Condition17 (2.1%)
Dementia4 (0.5%)

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

Motor Vehicles per Dwelling

No vehicle4 (1.6%)
1 vehicle60 (23.6%)
2 vehicles107 (42.1%)
3+ vehicles83 (32.7%)

Schools in Grantham

Grantham State School
Primary · Gov · ICSEA 925 · 73 students

Suburbs Near Grantham

Same Postcode (4347)

More Grantham 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.