Boulder, WA 6432 — Suburb Profile

In short

Boulder is a suburb of Western Australia, postcode 6432, home to 4,872 residents with a balanced age mix. Located in the Kalgoorlie-Boulder local government area (Very Remote Australia) and roughly 552 km from the Perth CBD.

Snapshot

Median rent$300 /wk

Population4,872

Median age35

Area4.4 km²

To CBD552 km

LGAKalgoorlie-Boulder

Demographics

Population: 4,872
Median age: 35 years
Median household income: $1,968 /week
Median personal income: $1,019 /week
Median family income: $2,337 /week
Average household size: 2.4
Persons per bedroom: 0.8
Local government area: Kalgoorlie-Boulder
Statistical region (SA4): Western Australia - Outback (South)
Remoteness classification: Very Remote Australia
Federal electorate: Durack

Source: ABS QuickStats

Property & cost of living

Median rent: $300 /week
Median monthly mortgage: $1,302
Rent share of household income: 15%

Schools

Kalgoorlie School Of The Air Other · Government
Boulder Primary School Primary · Government
St Joseph's School Other · Independent
Eastern Goldfields Education Support Centre Other · Government
Kalgoorlie-Boulder Community High School Secondary · Government

Transport

Within 800 m walk: 22 bus stops
Within 1.6 km: 43 bus stops

Closest stops:

Lane St Before Burt St bus · 68 m
Lane St After Burt St bus · 91 m
Lane St Transwa Boulder bus · 134 m
Lane St After Wittenoom St bus · 279 m
Lane St Boulder Primary School bus · 288 m

Lifestyle & amenities

9 cafés
17 restaurants
5 pubs and bars
82 parks and reserves
20 gyms and fitness centres
4 libraries
5 supermarkets
9 playgrounds

Counts within roughly 5 km of the suburb centre. Data © OpenStreetMap contributors (ODbL).

Climate

Warmest month: Jan (33.7°C avg max)
Coolest month: Jul (16.9°C avg max)
Annual rainfall: 266 mm
Reference station: Kalgoorlie-Boulder Airport, 13.4 km away

NBN & connectivity

Fibre to the Node serves 79.6% of the 2,551 resolvable premises in Boulder. Most premises here connect via fibre to a street cabinet, then copper into the home. Speeds depend heavily on the copper run length — NBN 100 is rarely achievable on long runs.

Fibre to the Premises: 20.4%
Fibre to the Node: 79.6%

Snapshot 2026-04-28. Tech mix from Luke Prior's NBN upgrade map (MIT licensed). Verify any specific address on NBN Co's address tool.

Safety

Recorded offences: 12,255 across the Goldfields-Esperance District in the year to Mar 2026 (up 12% on the prior year).
Most common categories: 4,183 violent offences, 2,653 theft, 1,611 drug offences.

Figures cover the whole Goldfields-Esperance District — the Western Australia Police Force publish counts at the district level.

Nearby suburbs

Frequently asked questions

What is the population of Boulder?

Boulder (WA 6432) had 4,872 residents at the most recent ABS Census. The median age is 35. It sits within the Kalgoorlie-Boulder local government area.

What is the median rent in Boulder?

The median advertised rent in Boulder is $300/week, based on SQM Research listings data. Rents vary by property type, bedrooms and condition.

Are there schools in Boulder?

Yes — 5 schools are listed within or near Boulder covering government, independent sectors. Nearest include: Kalgoorlie School Of The Air (0.2 km), Boulder Primary School (0.2 km), St Joseph's School (1.4 km). School data sourced from ACARA and state education departments.

What NBN technology is available in Boulder?

Boulder is predominantly served by Fibre to the Node (79.6% of premises). Coverage data is sourced from the NBN upgrade map aggregated from NBN Co address checks.

How safe is Boulder?

Across the surrounding area, 12,255 offences were recorded in the 12 months to Mar 2026. The most common offence categories were violent (4,183), theft (2,653), drug offences (1,611). 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 Boulder?

In Boulder, mean daily temperatures range from 11.8°C to 25.4°C and annual rainfall is 266 mm measured at the Kalgoorlie-Boulder Airport weather station (13.4 km away). Long-term averages from the Bureau of Meteorology.

What public transport options are in Boulder?

43 public transport stops are mapped within 1.6 km of the Boulder centroid. Within 800 m, you'll find 22 bus stops. Stop data is sourced from state government GTFS feeds.

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: