Cassilis flood map & planning overlays
A planning-constraint profile of Cassilis
(Upper Hunter, NSW) - 971.69 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 26 September 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
971.69 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Cassilis's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
Aircraft noise and flight paths over Cassilis
Two different things, kept apart on purpose. The ANEF contour is the planning instrument - a forecast published per airport that planning schemes use to control noise-sensitive development. Observed overflight is what a sampled aircraft-tracking feed actually recorded over the suburb - where aircraft flew, how low and how often.
Observed overflight - sampled to
Night movements: not established - night is sampled as often as day, but too few night flights have been seen here to conclude either way.
Traffic is sampled rather than watched continuously, so every figure is a floor: aircraft not captured between samples are not represented. Rates are per 500 m square - the busiest square in the suburb, not a count of flights over the suburb - and a square is only rated where enough traffic was seen to measure it. Altitudes are above mean sea level. Flight paths change with runway use, weather, season and airspace design. This is a record of observed traffic; it is not a noise contour and not a planning control.
Cassilis at a glance
How Cassilis is zoned
Buying in Cassilis? The zoning, flood and bushfire lines on the section 10.7 certificate attached to the contract are mapped controls - see our s10.7 certificate guide.
Across its 971.69 km², Cassilis is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 100% is flagged bushfire-prone. There are 22 heritage-listed sites on record, and the dominant land-use zone is Primary Production. The median lot measures about 161,015 m² across 1,330 parcels.
Who lives in Cassilis
Census 2021 figures published by the ABS for the Cassilis suburb boundary itself, not a wider region.
Socio-economic standing
ABS SEIFA 2021 ranks every Australian suburb. Decile 1 is the most disadvantaged tenth of the country, decile 10 the least.
Score 997, and decile 5 within New South Wales. The national average is 1000.
Age profile
Share of Cassilis's 278 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Scone Surrounds, the wider ABS statistical area containing Cassilis. There is no annual population series published at suburb level, so this describes the surrounding area rather than Cassilis itself.
8,042 in 2001 to 8,425 in 2025, up 5%.
Source: ABS Census 2021 and SEIFA 2021 (Suburbs and Localities), Regional Population (SA2), CC BY 4.0. Small counts are randomly adjusted by the ABS.
Cassilis data sources and coverage
“Not mapped” means we hold no source layer for this suburb - never an all-clear.
| Dataset | Coverage | Publisher |
|---|---|---|
| Flood mapping | Mapped | NSW Government spatial services, NSW ePlanning and published council flood studies |
| Bushfire-prone mapping | Mapped | NSW Government spatial services, NSW ePlanning and published council flood studies |
| Zoning | Mapped | NSW Government spatial services, NSW ePlanning and published council flood studies |
| Heritage and environment | Mapped where published | NSW Government spatial services, NSW ePlanning and published council flood studies |
| Aircraft noise contours (ANEF) | Not held | NSW Government spatial services, NSW ePlanning and published council flood studies, Defence |
| Observed flight paths | Observed | adsb.lol, under the Open Database License |
| Demographics | Available | Australian Bureau of Statistics (2021 Census and SEIFA) |
Profile last materially updated 26 September 2026. See the methodology and full source list. Source data changes over time and critical decisions should be checked with the responsible authority.
Check a specific Cassilis address
See exactly which overlays touch a single property - the interactive map is free. Need it on paper? A full planning PDF is just $9.
Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and an indicative AS 2870 site class for a Cassilis lot.
See what's in the $9 report →Cassilis planning - frequently asked
Is Cassilis flood-prone?
Flood mapping covers Cassilis and none of the suburb falls within a mapped flood overlay.
Is Cassilis bushfire-prone?
Around 100% of Cassilis is mapped as bushfire-prone, compared with a Upper Hunter average of 99%.
Is Cassilis under a flight path?
No aircraft were observed over Cassilis in the period sampled (recent weeks to now). Sampling is intermittent, so that is a floor rather than proof that none fly over. Traffic is sampled rather than watched continuously and flight paths change with runway use, weather and season; the ANEF contour is the planning instrument.
What is the zoning in Cassilis?
The dominant planning zone in Cassilis is Primary Production, though the suburb also includes National Parks and Nature Reserves and Forestry.
Does Cassilis have heritage-listed places?
Cassilis has 22 heritage-listed places on record.
What is the typical lot size in Cassilis?
Across 1,330 surveyed parcels in Cassilis, the median lot size is about 161,015 m². There are also 6 registered easements mapped in the suburb.
Does Cassilis have a train station?
There is no train station inside Cassilis itself. The suburb is served by 18 bus stops.
What is the population of Cassilis?
At the 2021 Census Cassilis had 278 usual residents, with a median age of 42 and an average household size of 2.6 people. The wider Scone Surrounds statistical area, which contains Cassilis, went from 8,042 people in 2001 to 8,425 in 2025, up 5%.
Is Cassilis an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Cassilis scores 997 and sits in decile 6 of 10 nationally and decile 5 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Cassilis?
Median household income in Cassilis was $1,375 a week at the 2021 Census, against $1,531 for the typical suburb in Upper Hunter. Median rent was $180 a week and the median mortgage repayment $1,138 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Turill Mid-Western Regional |
24.2 km | 0% | 100% |
| Uarbry Warrumbungle |
26.2 km | 0% | 100% |
| Mogo Mid-Western Regional |
31.2 km | 0% | 100% |
| Coolah Warrumbungle |
31.4 km | Not mapped | 100% |
| Merriwa | 31.5 km | 0% | 100% |
| Cattle Creek Liverpool Plains |
32.3 km | Not mapped | 100% |
| Ulan Mid-Western Regional |
35.9 km | 0% | 89% |
| Yarraman Liverpool Plains |
37.1 km | Not mapped | 100% |
| Bungaba Mid-Western Regional |
38.1 km | 0% | 100% |
| Bundella Liverpool Plains |
39.6 km | Not mapped | 100% |