Gonn flood map & planning overlays
A planning-constraint profile of Gonn
(Murray River, NSW) - 186.37 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 23 September 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
186.37 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Gonn's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
Gonn at a glance
How Gonn is zoned
Buying in Gonn? 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 186.37 km², Gonn is highly constrained by planning overlays. About 29% 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 Primary Production. The median lot measures about 412,531 m² across 106 parcels.
Who lives in Gonn
Census 2021 figures published by the ABS for the Gonn 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 997, and decile 5 within New South Wales. The national average is 1000.
Population trend, 2001 to 2025
Estimated resident population of Deniliquin Surrounds, the wider ABS statistical area containing Gonn. There is no annual population series published at suburb level, so this describes the surrounding area rather than Gonn itself.
8,216 in 2001 to 7,020 in 2025, down 15%.
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.
Gonn 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 | Not watched | adsb.lol, under the Open Database License |
| Demographics | Available | Australian Bureau of Statistics (2021 Census and SEIFA) |
Profile last materially updated 23 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 Gonn 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 Gonn lot.
See what's in the $9 report →Gonn planning - frequently asked
Is Gonn flood-prone?
About 29% of Gonn falls within a mapped flood overlay, against the council-wide suburb average of 20%.
Is Gonn bushfire-prone?
Around 100% of Gonn is mapped as bushfire-prone, compared with a Murray River average of 98%.
What is the zoning in Gonn?
The dominant planning zone in Gonn is Primary Production, though the suburb also includes Forestry and National Parks and Nature Reserves.
Does Gonn have heritage-listed places?
Gonn has 1 heritage-listed place on record.
What is the typical lot size in Gonn?
Across 106 surveyed parcels in Gonn, the median lot size is about 412,531 m². There are also 1 registered easements mapped in the suburb.
Is Gonn an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Gonn scores 997 and sits in decile 6 of 10 nationally and decile 5 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 |
|---|---|---|---|
| Cobramunga | 11.1 km | 53% | 100% |
| Noorong | 12.6 km | 2% | 100% |
| Tullakool | 17.2 km | 13% | 100% |
| Wetuppa | 18.6 km | Not mapped | 100% |
| Mellool | 24.5 km | 31% | 100% |
| Barham | 25.0 km | 71% | 97% |
| Cunninyeuk | 25.5 km | Not mapped | 100% |
| Dhuragoon | 31.7 km | Not mapped | 100% |
| Wakool | 32.3 km | <1% | 100% |
| Burraboi | 35.5 km | Not mapped | 100% |