Lake Munmorah flood map & planning overlays
A planning-constraint profile of Lake Munmorah
(Central Coast, NSW) - 5.56 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 3 October 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
5.56 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Lake Munmorah'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 Lake Munmorah
Two different things, kept apart on purpose. The ANEF contour is the planning instrument - a forecast published per airport that planning schemes use to control noise-sensitive development. Observed overflight is what a sampled aircraft-tracking feed actually recorded over the suburb - where aircraft flew, how low and how often.
Observed overflight - sampled 4 Sep to 2 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.
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.
Lake Munmorah at a glance
How Lake Munmorah is zoned
Buying in Lake Munmorah? The zoning, flood and bushfire lines on the section 10.7 certificate attached to the contract are mapped controls - see our s10.7 certificate guide.
Across its 5.56 km², Lake Munmorah is highly constrained by planning overlays. About 20% of the suburb sits within a mapped flood overlay, and 75% is flagged bushfire-prone. There is 1 heritage-listed site on record, and the dominant land-use zone is Low Density Residential. The median lot measures about 593 m² across 1,845 parcels.
Who lives in Lake Munmorah
Census 2021 figures published by the ABS for the Lake Munmorah 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 927, and decile 2 within New South Wales. The national average is 1000.
Age profile
Share of Lake Munmorah's 5,084 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Lake Munmorah - Mannering Park, the wider ABS statistical area containing Lake Munmorah. There is no annual population series published at suburb level, so this describes the surrounding area rather than Lake Munmorah itself.
9,041 in 2001 to 11,084 in 2025, up 23%.
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.
Lake Munmorah 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 | NSW Government spatial services, NSW ePlanning and published council flood studies |
| Bushfire-prone mapping | Mapped | NSW Government spatial services, NSW ePlanning and published council flood studies |
| Zoning | Mapped | NSW Government spatial services, NSW ePlanning and published council flood studies |
| Heritage and environment | Mapped where published | NSW Government spatial services, NSW ePlanning and published council flood studies |
| Aircraft noise contours (ANEF) | Not held | NSW Government spatial services, NSW ePlanning and published council flood studies, 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 3 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 Lake Munmorah 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.
Aircraft have been seen below 3,000 ft over about 30% of Lake Munmorah. The report's Aircraft Overflight page narrows that to the address itself: how many aircraft a day, how low, and at what heights.
Published flood models are held over parts of Lake Munmorah. The free check tells you whether one reaches an address; where it does, a Flood Model Report is +$9 with the planning report.
Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and an indicative AS 2870 site class for a Lake Munmorah lot.
See what's in the $9 report →Lake Munmorah planning - frequently asked
Is Lake Munmorah flood-prone?
About 20% of Lake Munmorah falls within a mapped flood overlay, against the council-wide suburb average of 30%. Published flood models are held over parts of Lake Munmorah; the free check on the Flood Model Report page says whether one reaches a given address.
Is Lake Munmorah bushfire-prone?
Around 75% of Lake Munmorah is mapped as bushfire-prone, compared with a Central Coast average of 69%.
Is Lake Munmorah under a flight path?
Aircraft were observed below 3,000 ft over about 30% of Lake Munmorah, and over about 43% at any altitude up to 10,000 ft, in the period sampled (4 Sep 2026 to 2 Oct 2026). The lowest measured aircraft was at 1,500 ft, with an average of 2,500 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 Lake Munmorah?
The dominant planning zone in Lake Munmorah is Low Density Residential, though the suburb also includes Transition and General Residential.
Does Lake Munmorah have heritage-listed places?
Lake Munmorah has 1 heritage-listed place on record.
What is the typical lot size in Lake Munmorah?
Across 1,845 surveyed parcels in Lake Munmorah, the median lot size is about 593 m². There are also 18 registered easements mapped in the suburb.
Does Lake Munmorah have a train station?
There is no train station inside Lake Munmorah itself. The suburb is served by 85 bus stops.
What is the population of Lake Munmorah?
At the 2021 Census Lake Munmorah had 5,084 usual residents, with a median age of 50 and an average household size of 2.3 people. The wider Lake Munmorah - Mannering Park statistical area, which contains Lake Munmorah, went from 9,041 people in 2001 to 11,084 in 2025, up 23%.
Is Lake Munmorah an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Lake Munmorah scores 927 and sits in decile 2 of 10 nationally and decile 2 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Lake Munmorah?
Median household income in Lake Munmorah was $1,155 a week at the 2021 Census, against $1,735 for the typical suburb in Central Coast. Median rent was $380 a week and the median mortgage repayment $1,733 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Freemans | 2.0 km | 23% | 100% |
| Doyalson North | 2.5 km | 3% | 96% |
| Kingfisher Shores | 2.8 km | 45% | 94% |
| Wybung | 3.1 km | 0% | 99% |
| Colongra | 3.2 km | 14% | 84% |
| Budgewoi Peninsula | 3.2 km | 13% | 99% |
| Chain Valley Bay | 3.2 km | 21% | 90% |
| Halekulani | 3.2 km | 15% | 55% |
| Crangan Bay Lake Macquarie |
3.7 km | 7% | 100% |
| Mannering Park | 4.2 km | 16% | 63% |