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Queensland · Postcode 4825
Mount Isa postcode and suburb data
Queensland · Phone area code 07 · 1563 km from Brisbane
Suburb snapshot
Mount Isa at a glance vs QLD
Fast facts and benchmark bars show the suburb's key postcode, Census, SEIFA, school and LGA signals in context.
Quick facts
Benchmarks against QLD
Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.
Where Mount Isa ranks: household income is in the top 10% of QLD suburbs; SEIFA decile 10 puts it in the top 20% of Australia for socio-economic advantage.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Mount Isa vs the QLD average and the national average, using population-weighted 2021 Census data.
| Metric | Mount Isa | QLD avg | AU avg |
|---|---|---|---|
| Household income/wk | $4,727 +QLD | $1,770 | $1,836 |
| Rent/wk | $175 -QLD | $380 | $390 |
| Mortgage/month | $1,250 -QLD | $1,774 | $1,958 |
| Median age | 35 | 44.0 | 45.0 |
| SEIFA decile | 10/10 +QLD | 4.0/10 | 6.0/10 |
| Unemployment | 3.2% -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 Isa is a very remote community in Queensland, with postcode 4825. It lies roughly 1563 km from Brisbane, classified by the ABS as very remote Australia. The area is administered by Mount Isa.
According to the 2021 Census, Mount Isa has a population of 172 with a median age of 35. The median weekly household income is $4,727, above the QLD average. The unemployment rate is 3.2%, lower than the QLD average. The Indigenous population is 8 (4.7% of residents).
Housing in Mount Isa includes a median weekly rent of $175, median monthly mortgage repayment of $1,250, with 56 total dwellings. Housing costs in the area sit below the QLD average. Rental properties account for 42.3% of dwellings.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Mount Isa scores in decile 10 out of 10, which is well above the national average.
There are 4 schools in the Mount Isa area, including Good Shepherd Catholic College, St Joseph's Catholic School, Mount Isa Central State School and others.
Mount Isa is part of the Barkly statistical area in Queensland.
Mount Isa details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 4825 |
| State | Queensland (QLD) |
| Phone Area Code | 07 |
| Population (2021) | 172 |
| Median Age | 35 years |
| Median Household Income (Census 2021) | $4,727/week |
| Median Personal Income (Census 2021) | $1,812/week |
| Median Weekly Rent (Census 2021) | $175 |
| Median Monthly Mortgage (Census 2021) | $1,250 |
| Average Household Size | 3.2 persons |
| Area | 6963.7 km² |
| Population Density | 0/km² |
| Total Dwellings | 56 |
| Australian Citizens | 88.4% |
| Indigenous Population | 8 (4.7%) |
| Unemployment Rate | 3.2% |
| SEIFA IRSAD Decile | 10/10 (well above average) |
| Latitude | -20.7255748 |
| Longitude | 139.4927085 |
| Distance from Brisbane | 1563 km |
| Region (SA4) | Northern Territory - Outback |
| Area (SA3) | Barkly |
| Local Government | Mount Isa |
| Federal Electorate | Kennedy |
| State Electorate | Barkly |
| Time Zone | AEST (UTC+10), Australia/Brisbane (standard time) |
Age Profile
Show counts
| 0–14 years | 55 (32.0%) |
| 15–24 years | 15 (8.7%) |
| 25–44 years | 58 (33.7%) |
| 45–64 years | 39 (22.7%) |
| 65+ years | 6 (3.5%) |
Housing Tenure
SEIFA socio-economic index
Health Conditions (2021 Census)
| Asthma | 11 (6.4%) |
| Diabetes | 5 (2.9%) |
| Cancer | 3 (1.7%) |
Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.
Motor Vehicles per Dwelling
| No vehicle | 0 (0.0%) |
| 1 vehicle | 5 (11.6%) |
| 2 vehicles | 24 (55.8%) |
| 3+ vehicles | 14 (32.6%) |
Schools in Mount Isa
ACARA 2025 school profiles for schools located in Mount Isa. ICSEA is shown where ACARA publishes it.
Suburbs Near Mount Isa
Same Postcode (4825)
More Mount Isa 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.