Areas / Surf Coast / Moriac

Moriac flood map & planning overlays

Moriac is young (38) and earns $2,486, 3rd on the Surf Coast.

Free map preview, then PDF reports from $9 - about the price of an iced latte on a public holiday.

A planning-constraint profile of Moriac (Surf Coast, VIC) - 17.08 km², mapped from live council and state overlay data. This suburb is highly constrained.
Profile updated 24 October 2026.

Elevation hillshade with street names, clipped to Moriac'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 Moriac

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

Under observed aircraft
87%
of the suburb, at or below 10,000 ft
Below 3,000 ft
69%
of the suburb's area
Lowest measured
500 ft
averaging 3,000 ft
Busiest square
~0 a day
0 a day below 3,000 ft · ±26% · area average
typical observed square 0 a day

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.

Moriac at a glance

Parcels 456 Median lot 4,000 m² Mapped easements 225

How Moriac is zoned

Farming Zone (FZ2) 90%
Low Density Residential Zone (LDRZ) 4%
Township Zone (TZ) 3%
Transport Zone (TRZ1) 1%
Transport Zone (TRZ2) 1%
Transport Zone (TRZ3) 0%

Selling in Moriac? The zoning and planning overlays on this page are the controls a Section 32 vendor statement discloses.

Across its 17.08 km², Moriac is highly constrained by planning overlays. About 14% of the suburb sits within a mapped flood overlay, and 97% is flagged bushfire-prone. There is 1 heritage-listed site on record, and the dominant land-use zone is Farming Zone (FZ2). The median lot measures about 4,000 m² across 456 parcels.

Who lives in Moriac

Census 2021 figures published by the ABS for the Moriac suburb boundary itself, not a wider region.

Population
852
usual residents, 2021
Median age
38
years
Median household income
$2,486
per week, Surf Coast suburb typical $2,045
Median rent
$410
per week, Surf Coast suburb typical $355
Median mortgage
$2,000
per month
Household size
3.1
people, average

Socio-economic standing

ABS SEIFA 2021 ranks every Australian suburb. Decile 1 is the most disadvantaged tenth of the country, decile 10 the least.

Advantage and disadvantage (IRSAD) Decile 10
most disadvantagedleast disadvantaged

Score 1074, and decile 10 within Victoria. The national average is 1000.

Relative disadvantage (IRSD) Decile 10
most disadvantagedleast disadvantaged

Age profile

Share of Moriac's 852 residents in each ABS age band.

0-4 7.1%
5-14 18.5%
15-19 5.8%
20-24 4.4%
25-34 8.1%
35-44 17.8%
45-54 14.8%
55-64 11.1%
65-74 8.7%
75-84 3.1%
85+ 0.8%

Population trend, 2001 to 2025

Estimated resident population of Winchelsea, the wider ABS statistical area containing Moriac. There is no annual population series published at suburb level, so this describes the surrounding area rather than Moriac itself.

5,418 in 2001 to 7,079 in 2025, up 31%.

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.

Moriac data sources and coverage

“Not mapped” means we hold no source layer for this suburb - never an all-clear.

DatasetCoveragePublisher
Flood mappingMappedVicmap Planning and Victorian Government spatial services
Bushfire-prone mappingMappedVicmap Planning and Victorian Government spatial services
ZoningMappedVicmap Planning and Victorian Government spatial services
Heritage and environmentMapped where publishedVicmap Planning and Victorian Government spatial services
Aircraft noise contours (ANEF)Not heldVicmap Planning and Victorian Government spatial services, Defence
Observed flight pathsObservedadsb.lol, under the Open Database License
DemographicsAvailableAustralian 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 Moriac 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 69% of Moriac. 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 Moriac lot.

Moriac planning - frequently asked

Is Moriac flood-prone?

About 14% of Moriac falls within a mapped flood overlay, against the council-wide suburb average of 7%.

Is Moriac bushfire-prone?

Around 97% of Moriac is mapped as bushfire-prone, compared with a Surf Coast average of 97%.

Is Moriac under a flight path?

Aircraft were observed below 3,000 ft over about 69% of Moriac, and over about 87% 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 500 ft, with an average of 3,000 ft. At the busiest point in the suburb about 0 aircraft a day were recorded passing over one 500 m square. 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 Moriac?

The dominant planning zone in Moriac is Farming Zone (FZ2), though the suburb also includes Low Density Residential Zone (LDRZ) and Township Zone (TZ).

Does Moriac have heritage-listed places?

Moriac has 1 heritage-listed place on record.

What is the typical lot size in Moriac?

Across 456 surveyed parcels in Moriac, the median lot size is about 4,000 m². There are also 225 registered easements mapped in the suburb.

What is the population of Moriac?

At the 2021 Census Moriac had 852 usual residents, with a median age of 38 and an average household size of 3.1 people. The wider Winchelsea statistical area, which contains Moriac, went from 5,418 people in 2001 to 7,079 in 2025, up 31%.

Is Moriac an advantaged suburb?

On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Moriac scores 1074 and sits in decile 10 of 10 nationally and decile 10 within Victoria (decile 1 is the most disadvantaged tenth, decile 10 the least).

What is the median household income in Moriac?

Median household income in Moriac was $2,486 a week at the 2021 Census, against $2,045 for the typical suburb in Surf Coast. Median rent was $410 a week and the median mortgage repayment $2,000 a month.

Compare nearby suburbs

Nearby suburbDistanceFlood mappedBushfire-prone
Mount Moriac 4.1 km 3% 100%
Modewarre 5.3 km 21% 95%
Paraparap 6.1 km 9% 100%
Freshwater Creek 7.6 km 11% 100%
Buckley 7.7 km 11% 95%
Gherang 9.4 km 5% 100%
Barrabool 9.8 km 7% 100%
Waurn Ponds
Greater Geelong		 10.2 km 3% 72%
Gnarwarre 10.4 km 3% 100%
Wurdiboluc 11.6 km 24% 82%

See all Surf Coast suburb profiles →