Thirldene flood map & planning overlays
A planning-constraint profile of Thirldene
(Tamworth Regional, NSW) - 158.89 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 26 September 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
158.89 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Thirldene's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
Thirldene at a glance
How Thirldene is zoned
Buying in Thirldene? The zoning, flood and bushfire lines on the section 10.7 certificate attached to the contract are mapped controls - see our s10.7 certificate guide.
Across its 158.89 km², Thirldene is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 100% is flagged bushfire-prone. The dominant land-use zone is Primary Production. The median lot measures about 3,720,575 m² across 32 parcels.
Who lives in Thirldene
Census 2021 figures published by the ABS for the Thirldene 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 975, and decile 4 within New South Wales. The national average is 1000.
Population trend, 2001 to 2025
Estimated resident population of Tamworth Surrounds, the wider ABS statistical area containing Thirldene. There is no annual population series published at suburb level, so this describes the surrounding area rather than Thirldene itself.
16,382 in 2001 to 20,158 in 2025, up 23%.
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.
Thirldene 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 | NSW Government spatial services, NSW ePlanning and published council flood studies |
| Bushfire-prone mapping | Mapped | NSW Government spatial services, NSW ePlanning and published council flood studies |
| Zoning | Mapped | NSW Government spatial services, NSW ePlanning and published council flood studies |
| Heritage and environment | Mapped where published | NSW Government spatial services, NSW ePlanning and published council flood studies |
| Aircraft noise contours (ANEF) | Not held | NSW Government spatial services, NSW ePlanning and published council flood studies, 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 26 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 Thirldene 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.
Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and an indicative AS 2870 site class for a Thirldene lot.
See what's in the $9 report →Thirldene planning - frequently asked
Is Thirldene flood-prone?
Flood mapping covers Thirldene and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 3%).
Is Thirldene bushfire-prone?
Around 100% of Thirldene is mapped as bushfire-prone, compared with a Tamworth Regional average of 92%.
What is the zoning in Thirldene?
The dominant planning zone in Thirldene is Primary Production, though the suburb also includes National Parks and Nature Reserves and Rural Landscape.
Does Thirldene have heritage-listed places?
No heritage-listed places are on record within Thirldene.
What is the typical lot size in Thirldene?
Across 32 surveyed parcels in Thirldene, the median lot size is about 3,720,575 m². There are also 4 registered easements mapped in the suburb.
Is Thirldene an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Thirldene scores 975 and sits in decile 5 of 10 nationally and decile 4 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Bakers Creek Uralla |
8.6 km | 0% | 82% |
| Ironbark | 11.3 km | 0% | 100% |
| Woodsreef | 14.7 km | 0% | 99% |
| Warrabah | 17.7 km | 0% | 100% |
| Camerons Creek Uralla |
18.4 km | Not mapped | 42% |
| Gundamulda Gwydir |
20.3 km | 0% | 90% |
| Kingstown Uralla |
25.2 km | 0% | 49% |
| Gulf Creek Gwydir |
25.9 km | 0% | 98% |
| Namoi River | 28.6 km | 0% | 100% |
| Red Hill | 29.0 km | 0% | 97% |