Boulder
WABoulder is a growing suburb in WA with 4,872 residents.
- SAL code
- 50159
- SA2
- 511031278
- Population
- 4,872
- LGA
- Kalgoorlie-Boulder
Boulder, WA had 4,872 residents at the 2021 Census, with the broader statistical area showing a 4.5% growth over the last five years. The predominant age group is 5-14 years, and the median age sits at 35. Households are most often couples with children, and those with a mortgage repay a median of $1,302 a month. Around 64.3% of homes are owner-occupied, with the largest single tenure being owned with a mortgage at 42.8%. Most dwellings are separate houses, making up 83.9% of the suburb's housing stock. The suburb has 11 parks and reserves mapped within its boundary. Source: ABS Census 2021 and Estimated Resident Population, with amenity counts from state Open Data and OpenStreetMap.
Population
?4,872
Suburb · Census 2021
5-Year Growth
+4.5%
3yr: +2.9% · 10yr: +0.7%
SA2 · 5yr
Household Income
$1,968/wk
Suburb · Census 2021 median
Median Age
35
Suburb · Census 2021
Socio-Economic Index
?2/10
SA2 · more disadvantaged
Unemployment
?4.3%
SA4 · Q4 2025
Schools
4
3 primary
Hospitals
No data for this suburb
Childcare services
?2
1 long day, 1 OSHC
Parks & green space
?11
Parks, reserves
Transport stops
?34
GTFS stops
Dwelling approvals
?2
Kalgoorlie-Boulder · Feb 2026
Median Weekly Rent
Based on rental bond lodgements recorded by the state government.
Median House Sale Price
state Valuer-General sale price data not yet loaded for WA
Safety & Crime
2025 Q4Reported incidents from WA police. Offence rates may not reflect all crime.
Population over time — Boulder (SA2)
ABS publishes annual estimates only at SA2; Boulder suburb alone is ~4,872 (Census 2021).
Growth at a Glance
Population grew from 8,095 to 7,756 over 24 years, averaging -0.2% per year.
Schools
4 in suburbGovernment school catchment
Catchment data is not yet available for WA.
Source when available: WA Department of Education — Public School Local-Intake Areas.
Profile
Census snapshot
Housing
Public housing 3.6%Almost entirely detached houses (83.9%), mixed tenure (64% own or mortgage), built for families (52% are 3 bed).
Dwelling mix
Tenure
Number of bedrooms
Bushfire & flood risk
Hazard data is not yet available for WA.
Source when available: WA DFES Bush Fire Prone Areas and DWER Floodplain Mapping.
Planning zones
Planning-zone data is not yet available for WA.
Source when available: Landgate / WA Department of Planning, Lands and Heritage.