Winjallok flood map & planning overlays
In Winjallok, 8 ha farms carry 12.2% flood mapping.
Free map preview, then PDF reports from $9 - about the price of an iced latte on a public holiday.
A planning-constraint profile of Winjallok
(Northern Grampians, VIC) - 43.68 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 24 October 2026.
Constraint readout
43.68 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Winjallok's boundary, with the flood, bushfire and environmental overlays drawn on top. Magenta is where aircraft were observed in the sampled period, brightest below 3,000 ft.
Nearby suburbs, nearest first
Aircraft noise and flight paths over Winjallok
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.
Winjallok at a glance
How Winjallok is zoned
Selling in Winjallok? The zoning and planning overlays on this page are the controls a Section 32 vendor statement discloses.
Across its 43.68 km², Winjallok is highly constrained by planning overlays. About 12% of the suburb sits within a mapped flood overlay, and 100% is flagged bushfire-prone. There is 1 heritage-listed site on record, and the dominant land-use zone is Farming Zone (FZ). The median lot measures about 79,974 m² across 176 parcels.
Who lives in Winjallok
Census 2021 figures published by the ABS for the Winjallok 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 955, and decile 3 within Victoria. The national average is 1000.
Population trend, 2001 to 2025
Estimated resident population of St Arnaud, the wider ABS statistical area containing Winjallok. There is no annual population series published at suburb level, so this describes the surrounding area rather than Winjallok 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.
Winjallok 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 Winjallok 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 →The report's Aircraft Overflight page narrows that to the address itself: how many aircraft a day, how low, and at what heights.
Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and the indicative soil reactivity range to expect for a Winjallok lot.
Winjallok planning - frequently asked
Is Winjallok flood-prone?
About 12% of Winjallok falls within a mapped flood overlay, against the council-wide suburb average of 27%.
Is Winjallok bushfire-prone?
Around 100% of Winjallok is mapped as bushfire-prone, compared with a Northern Grampians average of 100%.
Is Winjallok under a flight path?
Aircraft were observed over about 1% of Winjallok in the period sampled, but only above 3,000 ft - the lowest measured was 8,500 ft. 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 Winjallok?
The dominant planning zone in Winjallok is Farming Zone (FZ), though the suburb also includes Public Conservation and Resource Zone (PCRZ).
Does Winjallok have heritage-listed places?
Winjallok has 1 heritage-listed place on record.
What is the typical lot size in Winjallok?
Across 176 surveyed parcels in Winjallok, the median lot size is about 79,974 m². There are also 5 registered easements mapped in the suburb.
Is Winjallok an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Winjallok scores 955 and sits in decile 4 of 10 nationally and decile 3 within Victoria (decile 1 is the most disadvantaged tenth, decile 10 the least).
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Rostron | 8.5 km | 21% | 100% |
| Stuart Mill | 9.6 km | 9% | 100% |
| Navarre | 9.9 km | 24% | 100% |
| Paradise | 11.2 km | 7% | 100% |
| Barkly Pyrenees |
11.7 km | 7% | 100% |
| Redbank | 12.1 km | 8% | 100% |
| Tottington | 12.9 km | 7% | 100% |
| Beazleys Bridge | 15.2 km | 16% | 100% |
| Carapooee West | 15.2 km | 7% | 100% |
| Wattle Creek | 16.2 km | 41% | 100% |