Mil-Lel flood map & planning overlays
A planning-constraint profile of Mil-Lel
(Southern Limestone Coast Council, SA) - 70.16 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
70.16 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Mil-Lel's boundary, with the flood, bushfire and environmental overlays drawn on top. Amber hatching is the published aircraft noise (ANEF) contour. 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 Mil-Lel
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.
Inside an aircraft noise contour
1% of the suburb's land sits inside a published ANEF or airport-environs contour. Contours vary street by street, so whether a particular lot is inside one needs a property-level check.
Contours held
- SA Planning and Design Code aircraft noise
Observed overflight - sampled 4 Sep to 3 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.
Mil-Lel at a glance
How Mil-Lel is zoned
Selling in Mil-Lel? 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 70.16 km², Mil-Lel 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. The dominant land-use zone is Rural. The median lot measures about 42,181 m² across 276 parcels.
Who lives in Mil-Lel
Census 2021 figures published by the ABS for the Mil-Lel 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 1025, and decile 8 within South Australia. The national average is 1000.
Age profile
Share of Mil-Lel's 382 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Grant, the wider ABS statistical area containing Mil-Lel. There is no annual population series published at suburb level, so this describes the surrounding area rather than Mil-Lel itself.
5,110 in 2001 to 6,505 in 2025, up 27%.
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.
Mil-Lel 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) | Inside a held contour | 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 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 Mil-Lel 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.
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 Mil-Lel lot.
See what's in the $9 report →Mil-Lel planning - frequently asked
Is Mil-Lel flood-prone?
Flood mapping covers Mil-Lel and none of the suburb falls within a mapped flood overlay.
Is Mil-Lel bushfire-prone?
Around 100% of Mil-Lel is mapped as bushfire-prone, compared with a Southern Limestone Coast Council average of 98%.
Is Mil-Lel affected by aircraft noise?
About 1% of Mil-Lel sits inside a published aircraft noise contour. ANEF contours are forecasts published per airport and used to control noise-sensitive development; they are not a measurement at any one house, and a property can sit under a flight path and outside every contour.
Is Mil-Lel under a flight path?
Aircraft were observed over about 2% of Mil-Lel in the period sampled, but only above 3,000 ft - the lowest measured was 4,000 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 Mil-Lel?
The dominant planning zone in Mil-Lel is Rural, though the suburb also includes Rural Living and Employment.
Does Mil-Lel have heritage-listed places?
No heritage-listed places are on record within Mil-Lel.
What is the typical lot size in Mil-Lel?
Across 276 surveyed parcels in Mil-Lel, the median lot size is about 42,181 m².
What is the population of Mil-Lel?
At the 2021 Census Mil-Lel had 382 usual residents, with a median age of 40 and an average household size of 3.0 people. The wider Grant statistical area, which contains Mil-Lel, went from 5,110 people in 2001 to 6,505 in 2025, up 27%.
Is Mil-Lel an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Mil-Lel scores 1025 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 Mil-Lel?
Median household income in Mil-Lel was $2,238 a week at the 2021 Census, against $1,833 for the typical suburb in Southern Limestone Coast Council. Median rent was $195 a week and the median mortgage repayment $1,733 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Worrolong | 4.1 km | 0% | 98% |
| Glenburnie | 7.0 km | 0% | 100% |
| Mount Gambier City of Mount Gambier |
9.0 km | 0% | 41% |
| Mingbool | 9.1 km | 0% | 100% |
| Suttontown | 9.8 km | 0% | 96% |
| Yahl | 11.7 km | 0% | 100% |
| Square Mile | 11.8 km | 0% | 100% |
| Ob Flat | 13.9 km | 0% | 100% |
| Pleasant Park | 14.6 km | 0% | 100% |
| Dismal Swamp | 14.8 km | 0% | 100% |