Evanston flood map & planning overlays
A planning-constraint profile of Evanston
(Town of Gawler, SA) - 2.61 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
2.61 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Evanston'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 Evanston
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 3 Oct 2026
typical observed square 1 a day
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.
Evanston at a glance
How Evanston is zoned
Selling in Evanston? 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 2.61 km², Evanston is highly constrained by planning overlays. About 32% of the suburb sits within a mapped flood overlay, and 45% is flagged bushfire-prone. There are 7 heritage-listed sites on record, and the dominant land-use zone is General Neighbourhood. The median lot measures about 540 m² across 1,364 parcels.
Who lives in Evanston
Census 2021 figures published by the ABS for the Evanston 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 847, and decile 1 within South Australia. The national average is 1000.
Age profile
Share of Evanston's 2,580 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Gawler - South, the wider ABS statistical area containing Evanston. There is no annual population series published at suburb level, so this describes the surrounding area rather than Evanston itself.
15,284 in 2001 to 24,176 in 2025, up 58%.
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.
Evanston 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 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 Evanston 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 56% of Evanston. 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 Evanston lot.
See what's in the $9 report →Evanston planning - frequently asked
Is Evanston flood-prone?
About 32% of Evanston falls within a mapped flood overlay, against the council-wide suburb average of 38%.
Is Evanston bushfire-prone?
Around 45% of Evanston is mapped as bushfire-prone, compared with a Town of Gawler average of 73%.
Is Evanston under a flight path?
Aircraft were observed below 3,000 ft over about 56% of Evanston, in the period sampled (4 Sep 2026 to 3 Oct 2026). The lowest measured aircraft was at 500 ft, with an average of 1,000 ft. At the busiest point in the suburb about 3 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 Evanston?
The dominant planning zone in Evanston is General Neighbourhood, though the suburb also includes Rural and Recreation.
Does Evanston have heritage-listed places?
Evanston has 7 heritage-listed places on record.
What is the typical lot size in Evanston?
Across 1,364 surveyed parcels in Evanston, the median lot size is about 540 m². There are also 75 registered easements mapped in the suburb.
Does Evanston have a train station?
There is no train station inside Evanston itself. The suburb is served by 22 bus stops.
What is the population of Evanston?
At the 2021 Census Evanston had 2,580 usual residents, with a median age of 39 and an average household size of 2.2 people. The wider Gawler - South statistical area, which contains Evanston, went from 15,284 people in 2001 to 24,176 in 2025, up 58%.
Is Evanston an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Evanston scores 847 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 Evanston?
Median household income in Evanston was $1,046 a week at the 2021 Census, against $1,374 for the typical suburb in Town of Gawler. Median rent was $264 a week and the median mortgage repayment $1,248 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Gawler South | 1.4 km | 22% | 70% |
| Evanston Park | 1.7 km | 12% | 87% |
| Gawler West | 1.7 km | 79% | 44% |
| Evanston Gardens | 1.8 km | 37% | 80% |
| Reid | 2.1 km | 59% | 92% |
| Gawler | 2.5 km | 50% | 8% |
| Buchfelde Light Regional Council |
2.8 km | 22% | 100% |
| Gawler East | 3.2 km | 11% | 83% |
| Evanston South | 3.4 km | 22% | 90% |
| Kudla | 3.8 km | 41% | 100% |