Kelvin flood map & planning overlays
A planning-constraint profile of Kelvin
(Gunnedah, NSW) - 276.8 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
276.8 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Kelvin's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
Aircraft noise and flight paths over Kelvin
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.
Kelvin at a glance
How Kelvin is zoned
Buying in Kelvin? 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 276.8 km², Kelvin 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 253,954 m² across 454 parcels.
Who lives in Kelvin
Census 2021 figures published by the ABS for the Kelvin 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 1033, and decile 7 within New South Wales. The national average is 1000.
Age profile
Share of Kelvin's 182 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Gunnedah Surrounds, the wider ABS statistical area containing Kelvin. There is no annual population series published at suburb level, so this describes the surrounding area rather than Kelvin itself.
4,488 in 2001 to 4,611 in 2025, up 3%.
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.
Kelvin 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 Kelvin 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 Kelvin lot.
See what's in the $9 report →Kelvin planning - frequently asked
Is Kelvin flood-prone?
Flood mapping covers Kelvin and none of the suburb falls within a mapped flood overlay.
Is Kelvin bushfire-prone?
Around 100% of Kelvin is mapped as bushfire-prone, compared with a Gunnedah average of 96%.
Is Kelvin under a flight path?
No aircraft were observed over Kelvin in the period sampled (4 Sep 2026 to 2 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 Kelvin?
The dominant planning zone in Kelvin is Primary Production, though the suburb also includes National Parks and Nature Reserves and Environmental Management.
Does Kelvin have heritage-listed places?
No heritage-listed places are on record within Kelvin.
What is the typical lot size in Kelvin?
Across 454 surveyed parcels in Kelvin, the median lot size is about 253,954 m². There are also 2 registered easements mapped in the suburb.
What is the population of Kelvin?
At the 2021 Census Kelvin had 182 usual residents, with a median age of 43 and an average household size of 2.8 people. The wider Gunnedah Surrounds statistical area, which contains Kelvin, went from 4,488 people in 2001 to 4,611 in 2025, up 3%.
Is Kelvin an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Kelvin scores 1033 and sits in decile 8 of 10 nationally and decile 7 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Kelvin?
Median household income in Kelvin was $1,812 a week at the 2021 Census, against $1,666 for the typical suburb in Gunnedah. Median rent was $220 a week and the median mortgage repayment $2,180 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Keepit | 9.5 km | 0% | 56% |
| Orange Grove | 11.3 km | 0% | 100% |
| Blue Vale | 15.6 km | Not mapped | 96% |
| Wongo Creek Tamworth Regional |
16.0 km | 0% | 96% |
| Rushes Creek Tamworth Regional |
17.1 km | 0% | 98% |
| Wean Narrabri |
17.8 km | Not mapped | 100% |
| Rangari | 17.8 km | 0% | 100% |
| Carroll | 19.6 km | 0% | 100% |
| Somerton Tamworth Regional |
24.2 km | 0% | 100% |
| New Mexico Tamworth Regional |
24.4 km | 0% | 100% |