Cygnet flood map & planning overlays
A planning-constraint profile of Cygnet
(Huon Valley, TAS) - 57.51 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
57.51 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Cygnet's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
Aircraft noise and flight paths over Cygnet
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: 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.
Cygnet at a glance
How Cygnet is zoned
Buying in Cygnet? The zone and code overlays on this page are the Tasmanian Planning Scheme controls a section 337 certificate reports for a title.
Across its 57.51 km², Cygnet is highly constrained by planning overlays. About 6% of the suburb sits within a mapped flood overlay, and 99% is flagged bushfire-prone. There are 10 heritage-listed sites on record, and the dominant land-use zone is Rural. The median lot measures about 1,884 m² across 1,269 parcels.
Who lives in Cygnet
Census 2021 figures published by the ABS for the Cygnet 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 920, and decile 4 within Tasmania. The national average is 1000.
Age profile
Share of Cygnet's 1,742 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Cygnet, the wider ABS statistical area containing Cygnet. There is no annual population series published at suburb level, so this describes the surrounding area rather than Cygnet itself.
3,661 in 2001 to 5,216 in 2025, up 42%.
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.
Cygnet 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 Cygnet 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.
Published flood models are held here: a Flood Model Report is available for about 1,000 Cygnet addresses (+$9 with the planning report).
See what's in the $9 report →Cygnet planning - frequently asked
Is Cygnet flood-prone?
About 6% of Cygnet falls within a mapped flood overlay, against the council-wide suburb average of 8%. Modelled flood depth, velocity and flood level are held for about 1,000 Cygnet addresses, from published flood studies; the free check on the Flood Model Report page says whether a model reaches a given address.
Is Cygnet bushfire-prone?
Around 99% of Cygnet is mapped as bushfire-prone, compared with a Huon Valley average of 99%.
Is Cygnet under a flight path?
No aircraft were observed over Cygnet in the period sampled (4 Sep 2026 to 3 Oct 2026). Sampling is intermittent, so that is a floor rather than proof that none fly over. 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 Cygnet?
The dominant planning zone in Cygnet is Rural, though the suburb also includes Landscape Conservation and Environmental Management.
Does Cygnet have heritage-listed places?
Cygnet has 10 heritage-listed places on record.
What is the typical lot size in Cygnet?
Across 1,269 surveyed parcels in Cygnet, the median lot size is about 1,884 m².
What is the population of Cygnet?
At the 2021 Census Cygnet had 1,742 usual residents, with a median age of 46 and an average household size of 2.4 people. The wider Cygnet statistical area, which contains Cygnet, went from 3,661 people in 2001 to 5,216 in 2025, up 42%.
Is Cygnet an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Cygnet scores 920 and sits in decile 2 of 10 nationally and decile 4 within Tasmania (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Cygnet?
Median household income in Cygnet was $1,041 a week at the 2021 Census, against $1,206 for the typical suburb in Huon Valley. Median rent was $285 a week and the median mortgage repayment $1,280 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Cradoc | 4.6 km | 11% | 100% |
| Glaziers Bay | 5.5 km | 5% | 100% |
| Upper Woodstock | 5.8 km | 7% | 100% |
| Nicholls Rivulet | 5.9 km | 8% | 100% |
| Lower Wattle Grove | 5.9 km | 4% | 100% |
| Wattle Grove | 7.0 km | 5% | 100% |
| Gardners Bay | 7.2 km | 5% | 100% |
| Woodstock | 7.5 km | 14% | 100% |
| Lymington | 7.7 km | 6% | 100% |
| Petcheys Bay | 8.4 km | 5% | 100% |