Western Junction flood map & planning overlays
A planning-constraint profile of Western Junction
(Northern Midlands, TAS) - 14.99 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
14.99 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Western Junction'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 Western Junction
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: observed, lowest 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.
Western Junction at a glance
How Western Junction is zoned
Buying in Western Junction? The zone and code overlays on this page are the Tasmanian Planning Scheme controls a section 337 certificate reports for a title.
Across its 14.99 km², Western Junction is highly constrained by planning overlays. About 8% of the suburb sits within a mapped flood overlay, and 84% is flagged bushfire-prone. There are 8 heritage-listed sites on record, and the dominant land-use zone is Agriculture. The median lot measures about 5,614 m² across 257 parcels.
Who lives in Western Junction
Census 2021 figures published by the ABS for the Western Junction 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 1029, and decile 10 within Tasmania. The national average is 1000.
Age profile
Share of Western Junction's 128 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Perth - Evandale, the wider ABS statistical area containing Western Junction. There is no annual population series published at suburb level, so this describes the surrounding area rather than Western Junction itself.
4,426 in 2001 to 5,816 in 2025, up 31%.
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.
Western Junction 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 Tasmanian Planning Scheme and the LIST (Land Tasmania) |
| Bushfire-prone mapping | Mapped | the Tasmanian Planning Scheme and the LIST (Land Tasmania) |
| Zoning | Mapped | the Tasmanian Planning Scheme and the LIST (Land Tasmania) |
| Heritage and environment | Mapped where published | the Tasmanian Planning Scheme and the LIST (Land Tasmania) |
| Aircraft noise contours (ANEF) | Not held | the Tasmanian Planning Scheme and the LIST (Land Tasmania), 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 Western Junction 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 69% of Western Junction. The report's Aircraft Overflight page narrows that to the address itself: how many aircraft a day, how low, and at what heights.
Published flood models are held here: a Flood Model Report is available for about 210 Western Junction addresses (+$9 with the planning report).
See what's in the $9 report →Western Junction planning - frequently asked
Is Western Junction flood-prone?
About 8% of Western Junction falls within a mapped flood overlay, against the council-wide suburb average of 12%. Modelled flood depth, velocity and flood level are held for about 210 Western Junction addresses, from published flood studies; the free check on the Flood Model Report page says whether a model reaches a given address.
Is Western Junction bushfire-prone?
Around 84% of Western Junction is mapped as bushfire-prone, compared with a Northern Midlands average of 99%.
Is Western Junction under a flight path?
Aircraft were observed below 3,000 ft over about 69% of Western Junction, and over about 71% 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 500 ft, with an average of 1,000 ft. At the busiest point in the suburb about 84 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 Western Junction?
The dominant planning zone in Western Junction is Agriculture, though the suburb also includes General Industrial and Low Density Residential.
Does Western Junction have heritage-listed places?
Western Junction has 8 heritage-listed places on record.
What is the typical lot size in Western Junction?
Across 257 surveyed parcels in Western Junction, the median lot size is about 5,614 m².
What is the population of Western Junction?
At the 2021 Census Western Junction had 128 usual residents, with a median age of 45 and an average household size of 2.7 people. The wider Perth - Evandale statistical area, which contains Western Junction, went from 4,426 people in 2001 to 5,816 in 2025, up 31%.
Is Western Junction an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Western Junction scores 1029 and sits in decile 8 of 10 nationally and decile 10 within Tasmania (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Western Junction?
Median household income in Western Junction was $1,625 a week at the 2021 Census, against $1,375 for the typical suburb in Northern Midlands. Median rent was $220 a week and the median mortgage repayment $1,354 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Devon Hills | 2.7 km | 2% | 100% |
| Breadalbane | 4.8 km | 3% | 100% |
| Relbia Launceston |
5.4 km | 16% | 100% |
| Perth | 5.8 km | 23% | 97% |
| Youngtown Launceston |
7.8 km | 8% | 64% |
| Evandale | 9.2 km | 16% | 99% |
| White Hills Launceston |
9.4 km | 6% | 100% |
| Prospect Launceston |
9.6 km | 7% | 83% |
| St Leonards Launceston |
9.9 km | 9% | 98% |
| Kings Meadows Launceston |
9.9 km | 10% | 48% |