Port Julia flood map & planning overlays
A planning-constraint profile of Port Julia
(Yorke Peninsula Council, SA) - 19.51 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
19.51 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Port Julia'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 Port Julia
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
Night movements: observed, lowest 3,500 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.
Port Julia at a glance
How Port Julia is zoned
Selling in Port Julia? 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 19.51 km², Port Julia is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 99% is flagged bushfire-prone. There is 1 heritage-listed site on record, and the dominant land-use zone is Rural. The median lot measures about 905 m² across 237 parcels.
Who lives in Port Julia
Census 2021 figures published by the ABS for the Port Julia 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 971, and decile 5 within South Australia. The national average is 1000.
Age profile
Share of Port Julia's 59 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Yorke Peninsula - North, the wider ABS statistical area containing Port Julia. There is no annual population series published at suburb level, so this describes the surrounding area rather than Port Julia itself.
7,295 in 2001 to 7,755 in 2025, up 6%.
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.
Port Julia 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 Port Julia 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 6% of Port Julia. 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 Port Julia lot.
See what's in the $9 report →Port Julia planning - frequently asked
Is Port Julia flood-prone?
Flood mapping covers Port Julia and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 1%).
Is Port Julia bushfire-prone?
Around 99% of Port Julia is mapped as bushfire-prone, compared with a Yorke Peninsula Council average of 93%.
Is Port Julia under a flight path?
Aircraft were observed below 3,000 ft over about 6% of Port Julia, and over about 25% 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 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 Port Julia?
The dominant planning zone in Port Julia is Rural, though the suburb also includes Conservation and Rural Settlement.
Does Port Julia have heritage-listed places?
Port Julia has 1 heritage-listed place on record.
What is the typical lot size in Port Julia?
Across 237 surveyed parcels in Port Julia, the median lot size is about 905 m².
Does Port Julia have a train station?
There is no train station inside Port Julia itself. The suburb is served by 2 bus stops.
What is the population of Port Julia?
At the 2021 Census Port Julia had 59 usual residents, with a median age of 66 and an average household size of 1.7 people. The wider Yorke Peninsula - North statistical area, which contains Port Julia, went from 7,295 people in 2001 to 7,755 in 2025, up 6%.
Is Port Julia an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Port Julia scores 971 and sits in decile 5 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 Port Julia?
Median household income in Port Julia was $767 a week at the 2021 Census, against $937 for the typical suburb in Yorke Peninsula Council.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Sheaoak Flat | 4.6 km | <1% | 94% |
| Black Point | 5.2 km | 0% | 93% |
| Pine Point | 8.2 km | 0% | 95% |
| Curramulka | 10.4 km | 0% | 100% |
| Port Vincent | 14.4 km | 3% | 98% |
| Sandilands | 15.1 km | 0% | 100% |
| Rogues Point | 17.5 km | 34% | 44% |
| James Well | 18.7 km | 14% | 68% |
| Ramsay | 23.7 km | 0% | 100% |
| Ardrossan | 24.0 km | 0% | 87% |