Barramunga flood map & planning overlays
Barramunga is joint 6th in Colac Otway for heritage, with 11 places.
Free map preview, then PDF reports from $9 - about the price of an iced latte on a public holiday.
A planning-constraint profile of Barramunga
(Colac Otway, VIC) - 88.54 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 24 October 2026.
Constraint readout
88.54 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Barramunga'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 Barramunga
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.
Barramunga at a glance
How Barramunga is zoned
Selling in Barramunga? The zoning and planning overlays on this page are the controls a Section 32 vendor statement discloses.
Across its 88.54 km², Barramunga is highly constrained by planning overlays. About 1% of the suburb sits within a mapped flood overlay, and 100% is flagged bushfire-prone. There are 11 heritage-listed sites on record, and the dominant land-use zone is Public Conservation and Resource Zone (PCRZ). The median lot measures about 32,298 m² across 261 parcels.
Who lives in Barramunga
Census 2021 figures published by the ABS for the Barramunga 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 1050, and decile 9 within Victoria. The national average is 1000.
Population trend, 2001 to 2025
Estimated resident population of Otway, the wider ABS statistical area containing Barramunga. There is no annual population series published at suburb level, so this describes the surrounding area rather than Barramunga itself.
3,452 in 2001 to 3,974 in 2025, up 15%.
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.
Barramunga 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 Barramunga 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 →Aircraft have been seen below 3,000 ft over about 2% of Barramunga. 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 Barramunga lot.
Barramunga planning - frequently asked
Is Barramunga flood-prone?
About 1% of Barramunga falls within a mapped flood overlay, against the council-wide suburb average of 12%.
Is Barramunga bushfire-prone?
Around 100% of Barramunga is mapped as bushfire-prone, compared with a Colac Otway average of 97%.
Is Barramunga under a flight path?
Aircraft were observed below 3,000 ft over about 2% of Barramunga, and over about 10% at any altitude up to 10,000 ft, in the period sampled (4 Sep 2026 to 24 Oct 2026). The lowest measured aircraft was at 2,000 ft, with an average of 4,000 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 Barramunga?
The dominant planning zone in Barramunga is Public Conservation and Resource Zone (PCRZ), though the suburb also includes Farming Zone (FZ) and Public Use Zone (PUZ1).
Does Barramunga have heritage-listed places?
Barramunga has 11 heritage-listed places on record.
What is the typical lot size in Barramunga?
Across 261 surveyed parcels in Barramunga, the median lot size is about 32,298 m². There are also 52 registered easements mapped in the suburb.
Does Barramunga have a train station?
There is no train station inside Barramunga itself. The suburb is served by 1 bus stop.
Is Barramunga an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Barramunga scores 1050 and sits in decile 9 of 10 nationally and decile 9 within Victoria (decile 1 is the most disadvantaged tenth, decile 10 the least).
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Mount Sabine | 6.4 km | Not mapped | 100% |
| Forrest | 7.9 km | 11% | 100% |
| Tanybryn | 8.3 km | Not mapped | 100% |
| Kennett River | 10.1 km | <1% | 100% |
| Barwon Downs | 10.1 km | 4% | 100% |
| Beech Forest | 11.6 km | <1% | 100% |
| Skenes Creek North | 12.2 km | Not mapped | 100% |
| Wongarra | 12.5 km | <1% | 100% |
| Wye River | 13.3 km | <1% | 100% |
| Kawarren | 13.7 km | <1% | 100% |