Mount Light flood map & planning overlays
A planning-constraint profile of Mount Light
(Naracoorte Lucindale Council, SA) - 51.64 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 26 September 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
51.64 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Mount Light'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 Mount Light
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 26 Sep 2026
Night movements: observed, lowest 500 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.
Mount Light at a glance
How Mount Light is zoned
Selling in Mount Light? The zone and overlays on this page are the Planning and Design Code controls a Form 1 vendor's statement has to disclose.
Across its 51.64 km², Mount Light is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 100% is flagged bushfire-prone. There are 5 heritage-listed sites on record, and the dominant land-use zone is Rural. The median lot measures about 90,103 m² across 162 parcels.
Who lives in Mount Light
Census 2021 figures published by the ABS for the Mount Light 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 1030, and decile 8 within South Australia. The national average is 1000.
Age profile
Share of Mount Light's 155 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Naracoorte Surrounds, the wider ABS statistical area containing Mount Light. There is no annual population series published at suburb level, so this describes the surrounding area rather than Mount Light itself.
2,704 in 2001 to 2,475 in 2025, down 8%.
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.
Mount Light 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 | the South Australian Planning and Design Code and Location SA spatial data |
| Bushfire-prone mapping | Mapped | the South Australian Planning and Design Code and Location SA spatial data |
| Zoning | Mapped | the South Australian Planning and Design Code and Location SA spatial data |
| Heritage and environment | Mapped where published | the South Australian Planning and Design Code and Location SA spatial data |
| Aircraft noise contours (ANEF) | Not held | the South Australian Planning and Design Code and Location SA spatial data, 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 26 September 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 Mount Light 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 2% of Mount Light. 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 an indicative AS 2870 site class for a Mount Light lot.
See what's in the $9 report →Mount Light planning - frequently asked
Is Mount Light flood-prone?
Flood mapping covers Mount Light and none of the suburb falls within a mapped flood overlay.
Is Mount Light bushfire-prone?
Around 100% of Mount Light is mapped as bushfire-prone, compared with a Naracoorte Lucindale Council average of 100%.
Is Mount Light under a flight path?
Aircraft were observed below 3,000 ft over about 2% of Mount Light, and over about 3% at any altitude up to 10,000 ft, in the period sampled (4 Sep 2026 to 26 Sep 2026). The lowest measured aircraft was at 2,000 ft, with an average of 3,000 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 Mount Light?
The dominant planning zone in Mount Light is Rural, though the suburb also includes Rural Living and Conservation.
Does Mount Light have heritage-listed places?
Mount Light has 5 heritage-listed places on record.
What is the typical lot size in Mount Light?
Across 162 surveyed parcels in Mount Light, the median lot size is about 90,103 m².
What is the population of Mount Light?
At the 2021 Census Mount Light had 155 usual residents, with a median age of 46 and an average household size of 2.7 people. The wider Naracoorte Surrounds statistical area, which contains Mount Light, went from 2,704 people in 2001 to 2,475 in 2025, down 8%.
Is Mount Light an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Mount Light scores 1030 and sits in decile 8 of 10 nationally and decile 8 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Mount Light?
Median household income in Mount Light was $1,937 a week at the 2021 Census, against $1,796 for the typical suburb in Naracoorte Lucindale Council. Median rent was $250 a week and the median mortgage repayment $1,000 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Naracoorte | 7.0 km | <1% | 100% |
| Hynam | 11.3 km | 0% | 100% |
| Moyhall | 11.5 km | 0% | 100% |
| Struan | 11.7 km | 0% | 100% |
| Koppamurra | 12.3 km | 0% | 100% |
| Joanna | 14.3 km | 0% | 100% |
| Wild Dog Valley | 14.6 km | 0% | 100% |
| Laurie Park | 14.7 km | 0% | 99% |
| Bool Lagoon | 17.8 km | 0% | 100% |
| Kybybolite | 19.2 km | <1% | 100% |