How we source the data, and what we don’t claim to know

Median house & unit prices

Quarterly (NSW/VIC/SA real sales); annual (ABS for other states)

NSW medians come from every actual transaction recorded by the NSW Valuer General. VIC medians come from the Department of Transport's quarterly suburb-level publication. SA Metro Adelaide medians come from data.sa.gov.au. QLD and WA don't publish free bulk sale-price data, and the ABS annual SA2-level medians for those states are a year stale — so for many QLD/WA suburbs the page shows "Verified median pending" rather than publish a number we don't trust. We're working on a data partner; in the meantime, treat the state-level figures as the guide.

SourceNSW Valuer General, VIC Dept of Transport, SA Govt open data, ABS

ABS property statistics →

Median rent and rental yield

Annually for census-derived; quarterly for REIA indicators

Weekly rent figures come from the most recent census plus REIA's published medians. Gross yield is calculated as (annual rent ÷ median price) × 100.

SourceABS Census 2021, REIA quarterly indicators

Demographics & household composition

Census refresh (5-yearly)

Population, median age, ownership rate, household composition, and language data are all sourced from the most recent ABS Census. We re-import on each Census release.

SourceAustralian Bureau of Statistics, Census 2021

ABS 2021 Census →

Schools & ICSEA

Annually

School name, location, sector, year range, enrolment and ICSEA scores are pulled from ACARA's annual school data publication, licensed under CC BY 4.0. We don't publish individual NAPLAN results.

SourceAustralian Curriculum, Assessment and Reporting Authority (ACARA)

My School (ACARA) →

Walkability, transit, and bike scores

Re-computed quarterly

Walk, transit, and bike scores are computed from OpenStreetMap network data, counts of nearby amenities, transit stops, and bike infrastructure within walking distance of the suburb centroid.

SourceOpenStreetMap-derived metrics

OpenStreetMap →

Flood & bushfire risk

Annually, plus immediately after major events

Flood class and bushfire risk derived from Geoscience Australia's national flood hazard mapping and state bushfire prone land overlays. Suburb-level rating reflects the dominant exposure across the suburb polygon.

SourceGeoscience Australia, state hazard mapping authorities

Geoscience Australia →

Climate, rainfall & temperature

Annually (1991–2020 averages)

Mean monthly rainfall and temperatures are 1991–2020 averages for each suburb's own location, from SILO: the Queensland Government's database of Bureau of Meteorology observations, interpolated to a grid about 5 km apart. Each suburb takes the grid point nearest its centre, or the nearest point on land for a coastal or island suburb. A suburb not yet updated shows the long-term average from a named Bureau station and its distance instead, and we leave the figures out when that station is more than 50 km away. SILO data is licensed CC BY 4.0, © State of Queensland.

SourceSILO (Queensland Government), from Bureau of Meteorology observations

SILO climate data →

Crime statistics

Updated as published (varies by jurisdiction)

Crime data is sourced from each state's official open-data portal. Categories and reporting periods vary by jurisdiction, so we display the source-as-provided figures rather than re-categorising across states.

SourceState and territory police open data portals

Suburb & postcode boundaries

Re-imported on each official release

Suburb and postcode geometry uses ABS Statistical Areas and Australia Post's locality file. Where these disagree (which they sometimes do at the edge), we follow the ABS boundary.

SourceABS, Australia Post

RBA cash rate

Monthly (after each RBA decision)

Cash rate history is sourced directly from RBA published decisions. Updated within 24 hours of each decision.

SourceReserve Bank of Australia

RBA media releases →