Gray flood map & planning overlays
A planning-constraint profile of Gray
(Break O'Day, TAS) - 33.64 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 10 September 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
33.64 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Gray's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
Gray at a glance
How Gray is zoned
Buying in Gray? The zone and code overlays on this page are the Tasmanian Planning Scheme controls a section 337 certificate reports for a title.
Across its 33.64 km², Gray is highly constrained by planning overlays. About 6% of the suburb sits within a mapped flood overlay, and 100% 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 116,265 m² across 101 parcels.
Who lives in Gray
Census 2021 figures published by the ABS for the Gray 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 Gray's 71 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of St Helens - Scamander, the wider ABS statistical area containing Gray. There is no annual population series published at suburb level, so this describes the surrounding area rather than Gray itself.
5,830 in 2001 to 7,219 in 2025, up 24%.
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.
Gray 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 | Watched, not yet sampled here | adsb.lol, under the Open Database License |
| Demographics | Available | Australian Bureau of Statistics (2021 Census and SEIFA) |
Profile last materially updated 10 September 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 Gray 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 40 Gray addresses (+$9 with the planning report).
See what's in the $9 report →Gray planning - frequently asked
Is Gray flood-prone?
About 6% of Gray falls within a mapped flood overlay, against the council-wide suburb average of 13%. Modelled flood depth, velocity and flood level are held for about 40 Gray addresses, from published flood studies; the free check on the Flood Model Report page says whether a model reaches a given address.
Is Gray bushfire-prone?
Around 100% of Gray is mapped as bushfire-prone, compared with a Break O'Day average of 99%.
What is the zoning in Gray?
The dominant planning zone in Gray is Rural, though the suburb also includes Environmental Management and Utilities.
Does Gray have heritage-listed places?
Gray has 1 heritage-listed place on record.
What is the typical lot size in Gray?
Across 101 surveyed parcels in Gray, the median lot size is about 116,265 m².
What is the population of Gray?
At the 2021 Census Gray had 71 usual residents, with a median age of 54 and an average household size of 2.0 people. The wider St Helens - Scamander statistical area, which contains Gray, went from 5,830 people in 2001 to 7,219 in 2025, up 24%.
Is Gray an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Gray 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 Gray?
Median household income in Gray was $675 a week at the 2021 Census, against $900 for the typical suburb in Break O'Day.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Chain Of Lagoons | 5.0 km | 14% | 100% |
| St Marys | 6.8 km | 12% | 100% |
| Four Mile Creek | 9.6 km | 10% | 100% |
| Cornwall | 11.5 km | 3% | 99% |
| Seymour | 11.7 km | 38% | 97% |
| Falmouth | 14.3 km | 16% | 99% |
| Douglas-Apsley | 15.8 km | 9% | 100% |
| Douglas River | 17.4 km | 30% | 100% |
| Scamander | 20.0 km | 30% | 97% |
| Upper Scamander | 21.8 km | 9% | 100% |