Stuart Mill flood map & planning overlays
Stuart Mill: 26 heritage places (3rd) and a median of 57 (joint 3rd).
Free map preview, then PDF reports from $9 - about the price of an iced latte on a public holiday.
A planning-constraint profile of Stuart Mill
(Northern Grampians, VIC) - 150.52 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 24 October 2026.
Constraint readout
150.52 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Stuart Mill's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
Aircraft noise and flight paths over Stuart Mill
The ANEF contour is a published planning forecast and observed overflight is what a sampled tracking feed recorded - neither describes any individual property.
Observed overflight - sampled 4 Sep to 24 Oct 2026
Night movements: not established - night is sampled as often as day, but too few night flights have been seen here to conclude either way.
How this is measured
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.
Stuart Mill at a glance
How Stuart Mill is zoned
Selling in Stuart Mill? The zoning and planning overlays on this page are the controls a Section 32 vendor statement discloses.
Across its 150.52 km², Stuart Mill is highly constrained by planning overlays. About 9% of the suburb sits within a mapped flood overlay, and 100% is flagged bushfire-prone. There are 26 heritage-listed sites on record, and the dominant land-use zone is Public Conservation and Resource Zone (PCRZ). The median lot measures about 15,302 m² across 716 parcels.
Who lives in Stuart Mill
Census 2021 figures published by the ABS for the Stuart Mill 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 952, and decile 3 within Victoria. The national average is 1000.
Age profile
Share of Stuart Mill's 78 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of St Arnaud, the wider ABS statistical area containing Stuart Mill. There is no annual population series published at suburb level, so this describes the surrounding area rather than Stuart Mill itself.
4,075 in 2001 to 3,394 in 2025, down 17%.
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.
Stuart Mill 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 | Vicmap Planning and Victorian Government spatial services |
| Bushfire-prone mapping | Mapped | Vicmap Planning and Victorian Government spatial services |
| Zoning | Mapped | Vicmap Planning and Victorian Government spatial services |
| Heritage and environment | Mapped where published | Vicmap Planning and Victorian Government spatial services |
| Aircraft noise contours (ANEF) | Not held | Vicmap Planning and Victorian Government spatial services, 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 24 October 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 Stuart Mill 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.
See what's in the $9 report →Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and the indicative soil reactivity range to expect for a Stuart Mill lot.
Stuart Mill planning - frequently asked
Is Stuart Mill flood-prone?
About 9% of Stuart Mill falls within a mapped flood overlay, against the council-wide suburb average of 27%.
Is Stuart Mill bushfire-prone?
Around 100% of Stuart Mill is mapped as bushfire-prone, compared with a Northern Grampians average of 100%.
Is Stuart Mill under a flight path?
No aircraft were observed over Stuart Mill in the period sampled (4 Sep 2026 to 24 Oct 2026). 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 Stuart Mill?
The dominant planning zone in Stuart Mill is Public Conservation and Resource Zone (PCRZ), though the suburb also includes Farming Zone (FZ) and Rural Living Zone (RLZ4).
Does Stuart Mill have heritage-listed places?
Stuart Mill has 26 heritage-listed places on record.
What is the typical lot size in Stuart Mill?
Across 716 surveyed parcels in Stuart Mill, the median lot size is about 15,302 m². There are also 6 registered easements mapped in the suburb.
What is the population of Stuart Mill?
At the 2021 Census Stuart Mill had 78 usual residents, with a median age of 57 and an average household size of 2.1 people. The wider St Arnaud statistical area, which contains Stuart Mill, went from 4,075 people in 2001 to 3,394 in 2025, down 17%.
Is Stuart Mill an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Stuart Mill scores 952 and sits in decile 4 of 10 nationally and decile 3 within Victoria (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Stuart Mill?
Median household income in Stuart Mill was $1,042 a week at the 2021 Census, against $1,296 for the typical suburb in Northern Grampians. Median rent was $205 a week and the median mortgage repayment $705 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Winjallok | 9.6 km | 12% | 100% |
| Carapooee | 9.7 km | 24% | 100% |
| Carapooee West | 10.3 km | 7% | 100% |
| Rostron | 10.5 km | 21% | 100% |
| Dalyenong | 11.8 km | 7% | 100% |
| Redbank | 12.4 km | 8% | 100% |
| Moyreisk | 12.8 km | 17% | 100% |
| Beazleys Bridge | 15.4 km | 16% | 100% |
| Emu | 16.5 km | 15% | 100% |
| Barkly Pyrenees |
17.5 km | 7% | 100% |