Twelve Mile flood map & planning overlays
A planning-constraint profile of Twelve Mile
(Dubbo Regional, NSW) - 205.36 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
205.36 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Twelve Mile'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 Twelve Mile
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 2 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.
Twelve Mile at a glance
How Twelve Mile is zoned
Buying in Twelve Mile? 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 205.36 km², Twelve Mile 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. There are 2 heritage-listed sites on record, and the dominant land-use zone is Primary Production. The median lot measures about 229,198 m² across 282 parcels.
Who lives in Twelve Mile
Census 2021 figures published by the ABS for the Twelve Mile 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 1007, and decile 6 within New South Wales. The national average is 1000.
Population trend, 2001 to 2025
Estimated resident population of Wellington, the wider ABS statistical area containing Twelve Mile. There is no annual population series published at suburb level, so this describes the surrounding area rather than Twelve Mile itself.
8,950 in 2001 to 9,159 in 2025, up 2%.
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.
Twelve Mile 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 | 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 Twelve Mile 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.
The report's Aircraft Overflight page narrows that to the address itself: how many aircraft a day, how low, and at what heights.
Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and an indicative AS 2870 site class for a Twelve Mile lot.
See what's in the $9 report →Twelve Mile planning - frequently asked
Is Twelve Mile flood-prone?
Flood mapping covers Twelve Mile and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 5%).
Is Twelve Mile bushfire-prone?
Around 100% of Twelve Mile is mapped as bushfire-prone, compared with a Dubbo Regional average of 97%.
Is Twelve Mile under a flight path?
Aircraft were observed over about 11% of Twelve Mile in the period sampled, but only above 3,000 ft - the lowest measured was 4,500 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 Twelve Mile?
The dominant planning zone in Twelve Mile is Primary Production, though the suburb also includes Environmental Management and Infrastructure.
Does Twelve Mile have heritage-listed places?
Twelve Mile has 2 heritage-listed places on record.
What is the typical lot size in Twelve Mile?
Across 282 surveyed parcels in Twelve Mile, the median lot size is about 229,198 m². There are also 21 registered easements mapped in the suburb.
Is Twelve Mile an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Twelve Mile scores 1007 and sits in decile 7 of 10 nationally and decile 6 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 |
|---|---|---|---|
| Yarrabin Mid-Western Regional |
13.5 km | 0% | 100% |
| Piambong Mid-Western Regional |
15.5 km | 0% | 100% |
| Two Mile Flat Mid-Western Regional |
16.3 km | 0% | 100% |
| Wuuluman | 16.9 km | 1% | 100% |
| Spicers Creek | 18.2 km | 0% | 100% |
| Yarragal | 18.5 km | Not mapped | 100% |
| Worlds End Mid-Western Regional |
18.9 km | 0% | 100% |
| Collingwood Mid-Western Regional |
19.4 km | 0% | 100% |
| Lake Burrendong | 20.2 km | 0% | 23% |
| Guntawang Mid-Western Regional |
21.8 km | 0% | 100% |