Smithton flood map & planning overlays
A planning-constraint profile of Smithton
(Circular Head, TAS) - 91.59 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
91.59 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Smithton'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 Smithton
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.
Smithton at a glance
How Smithton is zoned
Buying in Smithton? The zone and code overlays on this page are the Tasmanian Planning Scheme controls a section 337 certificate reports for a title.
Across its 91.59 km², Smithton is highly constrained by planning overlays. About 26% of the suburb sits within a mapped flood overlay, and 97% is flagged bushfire-prone. There are 26 heritage-listed sites on record, and the dominant land-use zone is Agriculture. The median lot measures about 1,013 m² across 2,425 parcels.
Who lives in Smithton
Census 2021 figures published by the ABS for the Smithton 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 881, and decile 2 within Tasmania. The national average is 1000.
Age profile
Share of Smithton's 3,934 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Smithton, the wider ABS statistical area containing Smithton. There is no annual population series published at suburb level, so this describes the surrounding area rather than Smithton itself.
3,890 in 2001 to 3,886 in 2025, down 0%.
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.
Smithton 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 Smithton 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 2% of Smithton. 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 2,100 Smithton addresses (+$9 with the planning report).
See what's in the $9 report →Smithton planning - frequently asked
Is Smithton flood-prone?
About 26% of Smithton falls within a mapped flood overlay, against the council-wide suburb average of 14%. Modelled flood depth, velocity and flood level are held for about 2,100 Smithton addresses, from published flood studies; the free check on the Flood Model Report page says whether a model reaches a given address.
Is Smithton bushfire-prone?
Around 97% of Smithton is mapped as bushfire-prone, compared with a Circular Head average of 99%.
Is Smithton under a flight path?
Aircraft were observed below 3,000 ft over about 2% of Smithton, in the period sampled (4 Sep 2026 to 3 Oct 2026). The lowest measured aircraft was at 500 ft, with an average of 2,500 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 Smithton?
The dominant planning zone in Smithton is Agriculture, though the suburb also includes Rural and Environmental Management.
Does Smithton have heritage-listed places?
Smithton has 26 heritage-listed places on record.
What is the typical lot size in Smithton?
Across 2,425 surveyed parcels in Smithton, the median lot size is about 1,013 m².
What is the population of Smithton?
At the 2021 Census Smithton had 3,934 usual residents, with a median age of 42 and an average household size of 2.3 people. The wider Smithton statistical area, which contains Smithton, went from 3,890 people in 2001 to 3,886 in 2025, down 0%.
Is Smithton an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Smithton scores 881 and sits in decile 1 of 10 nationally and decile 2 within Tasmania (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Smithton?
Median household income in Smithton was $1,189 a week at the 2021 Census, against $1,338 for the typical suburb in Circular Head. Median rent was $222 a week and the median mortgage repayment $1,083 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Broadmeadows | 5.2 km | 12% | 100% |
| Scotchtown | 7.2 km | 15% | 100% |
| Mella | 8.2 km | 9% | 100% |
| Irishtown | 8.4 km | 7% | 100% |
| Forest | 8.5 km | 9% | 100% |
| Scopus | 10.3 km | 21% | 100% |
| Wiltshire | 11.2 km | 42% | 100% |
| South Forest | 12.9 km | 8% | 100% |
| Alcomie | 13.0 km | 5% | 100% |
| Edith Creek | 14.0 km | 15% | 100% |