Mount Benson flood map & planning overlays
A planning-constraint profile of Mount Benson
(District Council of Robe, SA) - 313.77 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
313.77 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Mount Benson's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
Aircraft noise and flight paths over Mount Benson
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: 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.
Mount Benson at a glance
How Mount Benson is zoned
Selling in Mount Benson? 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 313.77 km², Mount Benson 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 2 heritage-listed sites on record, and the dominant land-use zone is Rural. The median lot measures about 519,807 m² across 337 parcels.
Who lives in Mount Benson
Census 2021 figures published by the ABS for the Mount Benson 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 966, and decile 5 within South Australia. The national average is 1000.
Age profile
Share of Mount Benson's 130 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Kingston - Robe, the wider ABS statistical area containing Mount Benson. There is no annual population series published at suburb level, so this describes the surrounding area rather than Mount Benson itself.
3,718 in 2001 to 4,041 in 2025, up 9%.
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 Benson 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 Benson 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.
Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and an indicative AS 2870 site class for a Mount Benson lot.
See what's in the $9 report →Mount Benson planning - frequently asked
Is Mount Benson flood-prone?
Flood mapping covers Mount Benson and none of the suburb falls within a mapped flood overlay.
Is Mount Benson bushfire-prone?
Around 100% of Mount Benson is mapped as bushfire-prone, compared with a District Council of Robe average of 98%.
Is Mount Benson under a flight path?
No aircraft were observed over Mount Benson in the period sampled (4 Sep 2026 to 26 Sep 2026). Sampling is intermittent, so that is a floor rather than proof that none fly over. 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 Benson?
The dominant planning zone in Mount Benson is Rural, though the suburb also includes Conservation and Coastal Waters and Offshore Islands.
Does Mount Benson have heritage-listed places?
Mount Benson has 2 heritage-listed places on record.
What is the typical lot size in Mount Benson?
Across 337 surveyed parcels in Mount Benson, the median lot size is about 519,807 m².
What is the population of Mount Benson?
At the 2021 Census Mount Benson had 130 usual residents, with a median age of 49 and an average household size of 2.4 people. The wider Kingston - Robe statistical area, which contains Mount Benson, went from 3,718 people in 2001 to 4,041 in 2025, up 9%.
Is Mount Benson an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Mount Benson scores 966 and sits in decile 4 of 10 nationally and decile 5 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Mount Benson?
Median household income in Mount Benson was $1,416 a week at the 2021 Census, against $1,330 for the typical suburb in District Council of Robe. Median rent was $200 a week and the median mortgage repayment $1,060 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Reedy Creek Kingston District Council |
12.7 km | 0% | 100% |
| Robe | 13.5 km | 0% | 100% |
| Boatswain Point | 14.1 km | 0% | 92% |
| Wangolina Kingston District Council |
17.8 km | 0% | 100% |
| Bray | 20.2 km | 0% | 100% |
| Nora Creina | 22.6 km | 0% | 99% |
| Cape Jaffa Kingston District Council |
24.7 km | 0% | 98% |
| Conmurra Naracoorte Lucindale Council |
25.1 km | 0% | 100% |
| Sandy Grove Kingston District Council |
26.6 km | 0% | 100% |
| Pinks Beach Kingston District Council |
27.4 km | 0% | 92% |