Southside flood map & planning overlays
6,312 residents, 2nd-most in Gympie Regional, on 914 m² median lots, with 67.9% flood-mapped.
Most lots here are flood-mapped. The free check shows how much of one lot the overlay covers.
Free map preview, then PDF reports from $9 - about the price of an iced latte on a public holiday.
A planning-constraint profile of Southside
(Gympie Regional, QLD) - 18.64 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 7 November 2026.
Constraint readout
18.64 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Southside'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 Southside
The ANEF contour is a published planning forecast and observed overflight is what a sampled tracking feed recorded - neither describes any individual property.
Observed overflight - sampled 4 Sep to 7 Nov 2026
typical observed square 0 a day
Night movements: observed, lowest 1,000 ft - night is sampled as often as day, but night traffic is light, so this is a floor and no rate can be put on it.
How this is measured
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.
Southside at a glance
Schools in and near Southside
Public school-location data shows availability across the suburb; it does not rate schools or assign any individual address to a catchment.
Inside the suburb boundary
2 schools providing primary years and 1 providing secondary years. A combined school may be counted in both teaching levels.
Nearest school availability
Primary: inside the suburb
Secondary: inside the suburb
Source: Queensland Government school geographic information. Catchment boundaries can divide a suburb and change over time.
Which school zone is a Southside address in? Check an address with our free school zone checker.
How Southside is zoned
Selling in Southside? The lot-level zone is the zoning Part 3 of Queensland's Form 2 seller disclosure statement asks for - see our Form 2 planning data guide.
Across its 18.64 km², Southside is highly constrained by planning overlays. About 68% of the suburb sits within a mapped flood overlay, and 35% is flagged bushfire-prone. There are 3 heritage-listed sites on record, and the dominant land-use zone is Limited Development (Constrained Land). The median lot measures about 913 m² across 3,639 parcels.
Who lives in Southside
Census 2021 figures published by the ABS for the Southside 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 895, and decile 2 within Queensland. The national average is 1000.
Age profile
Share of Southside's 6,312 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Gympie - South, the wider ABS statistical area containing Southside. There is no annual population series published at suburb level, so this describes the surrounding area rather than Southside itself.
4,267 in 2001 to 9,079 in 2025, up 113%.
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.
Southside 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 | the relevant council planning scheme and Queensland Government spatial data |
| Bushfire-prone mapping | Mapped | the relevant council planning scheme and Queensland Government spatial data |
| Zoning | Mapped | the relevant council planning scheme and Queensland Government spatial data |
| Heritage and environment | Mapped where published | the relevant council planning scheme and Queensland Government spatial data |
| Aircraft noise contours (ANEF) | Not held | the relevant council planning scheme and Queensland Government spatial data, Defence |
| Observed flight paths | Observed | adsb.lol, under the Open Database License |
| Demographics | Available | Australian Bureau of Statistics (2021 Census and SEIFA) |
| School availability | Available | Queensland Government |
Profile last materially updated 7 November 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 Southside 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 →Aircraft have been seen below 3,000 ft over about 40% of Southside. The report's Aircraft Overflight page narrows that to the address itself: how many aircraft a day, how low, and at what heights.
Published flood models are held over parts of Southside. The free check tells you whether one reaches an address; where it does, a Flood Model Report is +$9 with the planning report.
Moving here? The Liveability section adds walking times from the address to schools, parks, shops and transport, and the school zones it sits in (+$9 with the planning 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 Southside lot.
Southside planning - frequently asked
Is Southside flood-prone?
About 68% of Southside falls within a mapped flood overlay, against the council-wide suburb average of 41%. Published flood models are held over parts of Southside; the free check on the Flood Model Report page says whether one reaches a given address.
Is Southside bushfire-prone?
Around 35% of Southside is mapped as bushfire-prone, compared with a Gympie Regional average of 67%.
Is Southside under a flight path?
Aircraft were observed below 3,000 ft over about 40% of Southside, and over about 56% at any altitude up to 10,000 ft, in the period sampled (4 Sep 2026 to 7 Nov 2026). The lowest measured aircraft was at 500 ft, with an average of 3,500 ft. At the busiest point in the suburb about 1 aircraft a day were recorded passing over one 500 m square. 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 Southside?
The dominant planning zone in Southside is Limited Development (Constrained Land), though the suburb also includes Residential Living and Rural Residential.
Does Southside have heritage-listed places?
Southside has 3 heritage-listed places on record.
What is the typical lot size in Southside?
Across 3,639 surveyed parcels in Southside, the median lot size is about 913 m². There are also 999 registered easements mapped in the suburb.
Does Southside have a train station?
There is no train station inside Southside itself. The suburb is served by 14 bus stops.
What is the population of Southside?
At the 2021 Census Southside had 6,312 usual residents, with a median age of 46 and an average household size of 2.4 people. The wider Gympie - South statistical area, which contains Southside, went from 4,267 people in 2001 to 9,079 in 2025, up 113%.
Is Southside an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Southside scores 895 and sits in decile 2 of 10 nationally and decile 2 within Queensland (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Southside?
Median household income in Southside was $1,175 a week at the 2021 Census, against $1,314 for the typical suburb in Gympie Regional. Median rent was $285 a week and the median mortgage repayment $1,387 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Gympie | 3.0 km | 56% | 18% |
| Nahrunda | 3.1 km | 69% | 27% |
| Jones Hill | 3.3 km | 48% | 50% |
| Monkland | 3.7 km | 92% | 23% |
| Widgee Crossing South | 3.9 km | 46% | 84% |
| Pie Creek | 4.1 km | 37% | 67% |
| Widgee Crossing North | 4.4 km | 92% | 51% |
| Two Mile | 4.6 km | 53% | 51% |
| Glanmire | 5.1 km | 88% | 42% |
| The Dawn | 5.7 km | 61% | 39% |