Portsmith, QLD 4870 — Suburb Profile
Last reviewed: · By Knowburb Research Team
In short
Portsmith is a suburb of Queensland, postcode 4870, home to 314 residents with a balanced age mix. Located in the Cairns local government area (Outer Regional Australia) and roughly 1391 km from the Brisbane CBD.
Snapshot
Demographics
- Population
- 314
- Median age
- 35 years
- Median household income
- $749 /week
- Median personal income
- $491 /week
- Median family income
- $1,708 /week
- Average household size
- 1.9
- Persons per bedroom
- 1.0
- Local government area
- Cairns
- Statistical region (SA4)
- Cairns
- Remoteness classification
- Outer Regional Australia
- Federal electorate
- Leichhardt
Property & cost of living
- Median rent
- $280 /week
- Median monthly mortgage
- $1,760
- Rent share of household income
- 37%
Schools
- St Joseph's School (Cairns)
- St Augustine's College (Cairns)
- Parramatta State School
- Balaclava State School
- Trinity Bay State High School
Transport
Transport data refreshes monthly from state GTFS feeds.
Lifestyle & amenities
- 41 cafés
- 101 restaurants
- 16 pubs and bars
- 58 parks and reserves
- 14 gyms and fitness centres
- 2 libraries
- 7 supermarkets
- 10 playgrounds
Climate
- Warmest month: Jan (31.5°C avg max)
- Coolest month: Jul (25.9°C avg max)
- Annual rainfall: 2026 mm
- Reference station: Cairns Aero, 6.0 km away
NBN & connectivity
Fibre to the Premises serves 92.6% of the 846 resolvable premises in Portsmith. Most premises here have a fibre cable running directly into the property — the fastest and most reliable NBN option, with plans available up to NBN 1000.
- Fibre to the Premises: 92.6%
- Fibre to the Building: 7.4%
Safety
- Recorded offences: 33,437 across the Cairns LGA in the year to April 2026 (stable on the prior year).
- Most common categories: 13,828 theft, 5,935 break-ins, 4,497 violent offences.
Nearby suburbs
Frequently asked questions
What is the population of Portsmith?
Portsmith (QLD 4870) had 314 residents at the most recent ABS Census. The median age is 35. It sits within the Cairns local government area.
What is the median rent in Portsmith?
The median advertised rent in Portsmith is $280/week, based on SQM Research listings data. Rents vary by property type, bedrooms and condition.
Are there schools in Portsmith?
Yes — 5 schools are listed within or near Portsmith covering catholic, government sectors. Nearest include: St Joseph's School (Cairns) (1.7 km), St Augustine's College (Cairns) (1.7 km), Parramatta State School (1.9 km). School data sourced from ACARA and state education departments.
What NBN technology is available in Portsmith?
Portsmith is predominantly served by Fibre to the Premises (92.6% of premises). Coverage data is sourced from the NBN upgrade map aggregated from NBN Co address checks.
How safe is Portsmith?
Across the surrounding area, 33,437 offences were recorded in the 12 months to APR26. The most common offence categories were theft (13,828), break-ins (5,935), violent (4,497). Crime statistics are recorded by area (postcode or LGA), not by individual suburb. Data sourced from each state's crime statistics agency.
What is the climate like in Portsmith?
In Portsmith, mean daily temperatures range from 20.9°C to 29.1°C and annual rainfall is 2,026 mm measured at the Cairns Aero weather station (6 km away). Long-term averages from the Bureau of Meteorology.
Sources & methodology
Demographics from ABS Census. Property data from SQM Research. Climate from Bureau of Meteorology. Schools from ACARA. NBN from NBN Co. Amenities from OpenStreetMap. See full methodology.
Additional sources for this profile: