Tresco flood map & planning overlays
Tresco's 1,011 m² lots are Swan Hill's 2nd-smallest.
Free map preview, then PDF reports from $9 - about the price of an iced latte on a public holiday.
A planning-constraint profile of Tresco
(Swan Hill, VIC) - 28.81 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 15 October 2026.
Constraint readout
28.81 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Tresco's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
Tresco at a glance
How Tresco is zoned
Selling in Tresco? The zoning and planning overlays on this page are the controls a Section 32 vendor statement discloses.
Across its 28.81 km², Tresco is highly constrained by planning overlays. About 52% of the suburb sits within a mapped flood overlay, and 72% is flagged bushfire-prone. The dominant land-use zone is Farming Zone (FZ). The median lot measures about 1,011 m² across 457 parcels.
Who lives in Tresco
Census 2021 figures published by the ABS for the Tresco 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 964, and decile 3 within Victoria. The national average is 1000.
Age profile
Share of Tresco's 162 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Swan Hill Surrounds, the wider ABS statistical area containing Tresco. There is no annual population series published at suburb level, so this describes the surrounding area rather than Tresco itself.
7,254 in 2001 to 6,467 in 2025, down 11%.
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.
Tresco 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 | Vicmap Planning and Victorian Government spatial services |
| Bushfire-prone mapping | Mapped | Vicmap Planning and Victorian Government spatial services |
| Zoning | Mapped | Vicmap Planning and Victorian Government spatial services |
| Heritage and environment | Mapped where published | Vicmap Planning and Victorian Government spatial services |
| Aircraft noise contours (ANEF) | Not held | Vicmap Planning and Victorian Government spatial services, 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 15 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 Tresco 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.
See what's in the $9 report →Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and the indicative soil reactivity range to expect for a Tresco lot.
Tresco planning - frequently asked
Is Tresco flood-prone?
About 52% of Tresco falls within a mapped flood overlay, against the council-wide suburb average of 39%.
Is Tresco bushfire-prone?
Around 72% of Tresco is mapped as bushfire-prone, compared with a Swan Hill average of 87%.
What is the zoning in Tresco?
The dominant planning zone in Tresco is Farming Zone (FZ), though the suburb also includes Transport Zone (TRZ1) and Transport Zone (TRZ2).
Does Tresco have heritage-listed places?
No heritage-listed places are on record within Tresco.
What is the typical lot size in Tresco?
Across 457 surveyed parcels in Tresco, the median lot size is about 1,011 m². There are also 119 registered easements mapped in the suburb.
What is the population of Tresco?
At the 2021 Census Tresco had 162 usual residents, with a median age of 46 and an average household size of 2.7 people. The wider Swan Hill Surrounds statistical area, which contains Tresco, went from 7,254 people in 2001 to 6,467 in 2025, down 11%.
Is Tresco an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Tresco scores 964 and sits in decile 4 of 10 nationally and decile 3 within Victoria (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Tresco?
Median household income in Tresco was $1,399 a week at the 2021 Census, against $1,390 for the typical suburb in Swan Hill. Median rent was $170 a week and the median mortgage repayment $930 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Tresco West | 4.9 km | 11% | 76% |
| Winlaton | 6.0 km | 86% | 100% |
| Lake Boga | 7.0 km | 62% | 75% |
| Fish Point | 7.1 km | 92% | 100% |
| Mystic Park Gannawarra |
8.6 km | 87% | 94% |
| Pental Island | 10.9 km | 90% | 100% |
| Kunat | 13.0 km | Not mapped | 100% |
| Castle Donnington | 13.7 km | 29% | 100% |
| Benjeroop Gannawarra |
13.9 km | 90% | 100% |
| Lake Charm Gannawarra |
16.4 km | 55% | 92% |