St Peters flood map & planning overlays
A planning-constraint profile of St Peters
(The City of Norwood Payneham and St Peters, SA) - 1.49 km², mapped from live council and
state overlay data. This suburb is moderately constrained.
Profile updated 3 October 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
1.49 km² - this suburb is moderately constrained by planning overlays.
Elevation hillshade with street names, clipped to St Peters'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 St Peters
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 3 a day
Night movements: observed, lowest 1,000 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.
St Peters at a glance
How St Peters is zoned
Selling in St Peters? 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 1.49 km², St Peters is moderately constrained by planning overlays. About 28% of the suburb sits within a mapped flood overlay. There are 49 heritage-listed sites on record, and the dominant land-use zone is Established Neighbourhood. The median lot measures about 639 m² across 1,675 parcels.
Who lives in St Peters
Census 2021 figures published by the ABS for the St Peters 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 1120, and decile 10 within South Australia. The national average is 1000.
Age profile
Share of St Peters's 3,231 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of St Peters - Marden, the wider ABS statistical area containing St Peters. There is no annual population series published at suburb level, so this describes the surrounding area rather than St Peters itself.
12,677 in 2001 to 14,481 in 2025, up 14%.
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.
St Peters 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 St Peters 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 25% of St Peters. 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 St Peters lot.
See what's in the $9 report →St Peters planning - frequently asked
Is St Peters flood-prone?
About 28% of St Peters falls within a mapped flood overlay, against the council-wide suburb average of 26%.
Is St Peters bushfire-prone?
Bushfire mapping covers St Peters and little to none of it is mapped as bushfire-prone.
Is St Peters under a flight path?
Aircraft were observed below 3,000 ft over about 25% of St Peters, and over about 99% at any altitude up to 10,000 ft, in the period sampled (4 Sep 2026 to 3 Oct 2026). The lowest measured aircraft was at 1,000 ft, with an average of 3,500 ft. At the busiest point in the suburb about 34 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 St Peters?
The dominant planning zone in St Peters is Established Neighbourhood, though the suburb also includes Open Space and Business Neighbourhood.
Does St Peters have heritage-listed places?
St Peters has 49 heritage-listed places on record.
What is the typical lot size in St Peters?
Across 1,675 surveyed parcels in St Peters, the median lot size is about 639 m².
Does St Peters have a train station?
There is no train station inside St Peters itself. The suburb is served by 14 bus stops.
What is the population of St Peters?
At the 2021 Census St Peters had 3,231 usual residents, with a median age of 43 and an average household size of 2.5 people. The wider St Peters - Marden statistical area, which contains St Peters, went from 12,677 people in 2001 to 14,481 in 2025, up 14%.
Is St Peters an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), St Peters scores 1120 and sits in decile 10 of 10 nationally and decile 10 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in St Peters?
Median household income in St Peters was $2,266 a week at the 2021 Census, against $1,752 for the typical suburb in The City of Norwood Payneham and St Peters. Median rent was $310 a week and the median mortgage repayment $2,700 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Joslin | 0.6 km | 26% | 0% |
| College Park | 0.8 km | 32% | 0% |
| Stepney | 0.9 km | 37% | 0% |
| Royston Park | 1.1 km | 20% | 0% |
| Hackney | 1.1 km | 20% | 0% |
| Evandale | 1.1 km | 20% | 0% |
| Gilberton The Corporation of the Town of Walkerville |
1.1 km | 6% | 0% |
| Maylands | 1.4 km | 30% | 0% |
| Walkerville The Corporation of the Town of Walkerville |
1.5 km | 3% | 0% |
| Marden | 1.7 km | 28% | 0% |
See all The City of Norwood Payneham and St Peters suburb profiles →