Leppington flood map & planning overlays
A planning-constraint profile of Leppington
(Camden, NSW) - 21.17 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
21.17 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Leppington'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 Leppington
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
typical observed square 2 a day
Night movements: observed, lowest 2,000 ft - night is sampled as often as day, but night traffic is light, so this is a floor and no rate can be put on it.
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.
Leppington at a glance
How Leppington is zoned
Buying in Leppington? 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 21.17 km², Leppington is highly constrained by planning overlays. About 10% of the suburb sits within a mapped flood overlay, and 32% is flagged bushfire-prone. There are 21 heritage-listed sites on record, and the dominant land-use zone is Primary Production Small Lots. The median lot measures about 376 m² across 6,326 parcels.
Who lives in Leppington
Census 2021 figures published by the ABS for the Leppington 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 1067, and decile 9 within New South Wales. The national average is 1000.
Age profile
Share of Leppington's 9,423 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Leppington - Catherine Field, the wider ABS statistical area containing Leppington. There is no annual population series published at suburb level, so this describes the surrounding area rather than Leppington itself.
4,631 in 2001 to 21,103 in 2025, up 356%.
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.
Leppington 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 Leppington 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 70% of Leppington. 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 Leppington. 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 Leppington lot.
See what's in the $9 report →Leppington planning - frequently asked
Is Leppington flood-prone?
About 10% of Leppington falls within a mapped flood overlay, against the council-wide suburb average of 8%. Published flood models are held over parts of Leppington; the free check on the Flood Model Report page says whether one reaches a given address.
Is Leppington bushfire-prone?
Around 32% of Leppington is mapped as bushfire-prone, compared with a Camden average of 44%.
Is Leppington under a flight path?
Aircraft were observed below 3,000 ft over about 70% of Leppington, and over about 84% 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 500 ft, with an average of 3,500 ft. At the busiest point in the suburb about 15 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 Leppington?
The dominant planning zone in Leppington is Primary Production Small Lots, though the suburb also includes Low Density Residential and Infrastructure.
Does Leppington have heritage-listed places?
Leppington has 21 heritage-listed places on record.
What is the typical lot size in Leppington?
Across 6,326 surveyed parcels in Leppington, the median lot size is about 376 m². There are also 27 registered easements mapped in the suburb.
Does Leppington have a train station?
Yes - Leppington has 1 train station: Leppington Station. It is also served by 139 bus stops.
What is the population of Leppington?
At the 2021 Census Leppington had 9,423 usual residents, with a median age of 32 and an average household size of 3.2 people. The wider Leppington - Catherine Field statistical area, which contains Leppington, went from 4,631 people in 2001 to 21,103 in 2025, up 356%.
Is Leppington an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Leppington scores 1067 and sits in decile 9 of 10 nationally and decile 9 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Leppington?
Median household income in Leppington was $2,275 a week at the 2021 Census, against $2,294 for the typical suburb in Camden. Median rent was $550 a week and the median mortgage repayment $2,700 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Catherine Field | 2.5 km | 14% | 54% |
| Varroville Campbelltown |
3.9 km | 0% | 92% |
| Denham Court Campbelltown |
3.9 km | 6% | 66% |
| Gledswood Hills | 4.3 km | 3% | 28% |
| Oran Park | 4.4 km | 4% | 15% |
| Rossmore Liverpool |
4.7 km | 18% | 60% |
| Kearns Campbelltown |
5.0 km | 0% | 61% |
| Raby Campbelltown |
5.6 km | 0% | 13% |
| Horningsea Park Liverpool |
6.0 km | 22% | 18% |
| Austral Liverpool |
6.1 km | 27% | 49% |