Smithfield Plains flood map & planning overlays
A planning-constraint profile of Smithfield Plains
(City of Playford, SA) - 1.48 km², mapped from live council and
state overlay data. This suburb is moderately constrained.
Profile updated 26 September 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
1.48 km² - this suburb is moderately constrained by planning overlays.
Elevation hillshade with street names, clipped to Smithfield Plains'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 Smithfield Plains
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.
Smithfield Plains at a glance
How Smithfield Plains is zoned
Selling in Smithfield Plains? 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 1.48 km², Smithfield Plains is moderately constrained by planning overlays. About 24% of the suburb sits within a mapped flood overlay. The dominant land-use zone is Master Planned Neighbourhood. The median lot measures about 480 m² across 1,483 parcels.
Who lives in Smithfield Plains
Census 2021 figures published by the ABS for the Smithfield Plains 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 761, and decile 1 within South Australia. The national average is 1000.
Age profile
Share of Smithfield Plains's 3,305 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Davoren Park, the wider ABS statistical area containing Smithfield Plains. There is no annual population series published at suburb level, so this describes the surrounding area rather than Smithfield Plains itself.
11,881 in 2001 to 20,448 in 2025, up 72%.
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.
Smithfield Plains 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 Smithfield Plains 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 14% of Smithfield Plains. 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 Smithfield Plains lot.
See what's in the $9 report →Smithfield Plains planning - frequently asked
Is Smithfield Plains flood-prone?
About 24% of Smithfield Plains falls within a mapped flood overlay, against the council-wide suburb average of 26%.
Is Smithfield Plains bushfire-prone?
Bushfire mapping covers Smithfield Plains and little to none of it is mapped as bushfire-prone (the City of Playford average is 49%).
Is Smithfield Plains under a flight path?
Aircraft were observed below 3,000 ft over about 14% of Smithfield Plains, and over about 51% 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 1,000 ft, with an average of 3,500 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 Smithfield Plains?
The dominant planning zone in Smithfield Plains is Master Planned Neighbourhood, though the suburb also includes General Neighbourhood and Suburban Activity Centre.
Does Smithfield Plains have heritage-listed places?
No heritage-listed places are on record within Smithfield Plains.
What is the typical lot size in Smithfield Plains?
Across 1,483 surveyed parcels in Smithfield Plains, the median lot size is about 480 m².
Does Smithfield Plains have a train station?
There is no train station inside Smithfield Plains itself. The suburb is served by 13 bus stops.
What is the population of Smithfield Plains?
At the 2021 Census Smithfield Plains had 3,305 usual residents, with a median age of 29 and an average household size of 2.6 people. The wider Davoren Park statistical area, which contains Smithfield Plains, went from 11,881 people in 2001 to 20,448 in 2025, up 72%.
Is Smithfield Plains an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Smithfield Plains scores 761 and sits in decile 1 of 10 nationally and decile 1 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Smithfield Plains?
Median household income in Smithfield Plains was $1,008 a week at the 2021 Census, against $1,542 for the typical suburb in City of Playford. Median rent was $251 a week and the median mortgage repayment $1,092 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Smithfield | 1.2 km | 18% | 0% |
| Andrews Farm | 1.5 km | 25% | 30% |
| Davoren Park | 1.7 km | 18% | 0% |
| Munno Para | 1.9 km | 30% | 15% |
| Munno Para West | 2.3 km | 29% | 4% |
| Eyre | 2.5 km | 28% | 48% |
| Elizabeth North | 2.7 km | 26% | 0% |
| Elizabeth Downs | 2.9 km | 34% | 0% |
| Blakeview | 3.1 km | 25% | 40% |
| Munno Para Downs | 3.3 km | 35% | 60% |