Gerangamete flood map & planning overlays
Gerangamete ranks 8th in Colac Otway for significant landscape overlay, 95.8%.
Free map preview, then PDF reports from $9 - about the price of an iced latte on a public holiday.
A planning-constraint profile of Gerangamete
(Colac Otway, VIC) - 54.63 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 24 October 2026.
Constraint readout
54.63 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Gerangamete'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 Gerangamete
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.
Gerangamete at a glance
How Gerangamete is zoned
Selling in Gerangamete? The zoning and planning overlays on this page are the controls a Section 32 vendor statement discloses.
Across its 54.63 km², Gerangamete is highly constrained by planning overlays. About 18% of the suburb sits within a mapped flood overlay, and 100% is flagged bushfire-prone. The dominant land-use zone is Farming Zone (FZ). The median lot measures about 11,414 m² across 290 parcels.
Who lives in Gerangamete
Census 2021 figures published by the ABS for the Gerangamete 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 1009, and decile 6 within Victoria. The national average is 1000.
Age profile
Share of Gerangamete's 112 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Colac Surrounds, the wider ABS statistical area containing Gerangamete. There is no annual population series published at suburb level, so this describes the surrounding area rather than Gerangamete itself.
5,829 in 2001 to 5,670 in 2025, down 3%.
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.
Gerangamete 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 Gerangamete 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 5% of Gerangamete. 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 Gerangamete lot.
Gerangamete planning - frequently asked
Is Gerangamete flood-prone?
About 18% of Gerangamete falls within a mapped flood overlay, against the council-wide suburb average of 12%.
Is Gerangamete bushfire-prone?
Around 100% of Gerangamete is mapped as bushfire-prone, compared with a Colac Otway average of 97%.
Is Gerangamete under a flight path?
Aircraft were observed below 3,000 ft over about 5% of Gerangamete, and over about 16% 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 1,000 ft, with an average of 3,500 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 Gerangamete?
The dominant planning zone in Gerangamete is Farming Zone (FZ), though the suburb also includes Public Conservation and Resource Zone (PCRZ) and Transport Zone (TRZ2).
Does Gerangamete have heritage-listed places?
No heritage-listed places are on record within Gerangamete.
What is the typical lot size in Gerangamete?
Across 290 surveyed parcels in Gerangamete, the median lot size is about 11,414 m². There are also 102 registered easements mapped in the suburb.
What is the population of Gerangamete?
At the 2021 Census Gerangamete had 112 usual residents, with a median age of 41 and an average household size of 2.7 people. The wider Colac Surrounds statistical area, which contains Gerangamete, went from 5,829 people in 2001 to 5,670 in 2025, down 3%.
Is Gerangamete an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Gerangamete scores 1009 and sits in decile 7 of 10 nationally and decile 6 within Victoria (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Gerangamete?
Median household income in Gerangamete was $1,406 a week at the 2021 Census, against $1,443 for the typical suburb in Colac Otway. Median rent was $205 a week and the median mortgage repayment $1,733 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Forrest | 6.5 km | 11% | 100% |
| Yeodene | 6.6 km | 3% | 100% |
| Barongarook | 7.2 km | <1% | 100% |
| Kawarren | 9.7 km | <1% | 100% |
| Murroon | 9.7 km | 9% | 100% |
| Barwon Downs | 10.0 km | 4% | 100% |
| Yeo | 10.1 km | 2% | 100% |
| Barongarook West | 13.5 km | <1% | 100% |
| Elliminyt | 13.7 km | 17% | 92% |
| Barramunga | 14.4 km | 1% | 100% |