Hynam flood map & planning overlays
A planning-constraint profile of Hynam
(Naracoorte Lucindale Council, SA) - 150.2 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
150.2 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Hynam'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 Hynam
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 3 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.
Hynam at a glance
How Hynam is zoned
Selling in Hynam? The zone and overlays on this page are the Planning and Design Code controls a Form 1 vendor's statement has to disclose.
Across its 150.2 km², Hynam 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 6 heritage-listed sites on record, and the dominant land-use zone is Rural. The median lot measures about 80,781 m² across 310 parcels.
Who lives in Hynam
Census 2021 figures published by the ABS for the Hynam 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 1041, and decile 9 within South Australia. The national average is 1000.
Age profile
Share of Hynam's 198 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Naracoorte Surrounds, the wider ABS statistical area containing Hynam. There is no annual population series published at suburb level, so this describes the surrounding area rather than Hynam itself.
2,704 in 2001 to 2,475 in 2025, down 8%.
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.
Hynam 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 South Australian Planning and Design Code and Location SA spatial data |
| Bushfire-prone mapping | Mapped | the South Australian Planning and Design Code and Location SA spatial data |
| Zoning | Mapped | the South Australian Planning and Design Code and Location SA spatial data |
| Heritage and environment | Mapped where published | the South Australian Planning and Design Code and Location SA spatial data |
| Aircraft noise contours (ANEF) | Not held | the South Australian Planning and Design Code and Location SA spatial data, 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 Hynam 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 Hynam lot.
See what's in the $9 report →Hynam planning - frequently asked
Is Hynam flood-prone?
Flood mapping covers Hynam and none of the suburb falls within a mapped flood overlay.
Is Hynam bushfire-prone?
Around 100% of Hynam is mapped as bushfire-prone, compared with a Naracoorte Lucindale Council average of 100%.
Is Hynam under a flight path?
Aircraft were observed over about 3% of Hynam in the period sampled, but only above 3,000 ft - the lowest measured was 2,000 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 Hynam?
The dominant planning zone in Hynam is Rural, though the suburb also includes Strategic Employment and Township.
Does Hynam have heritage-listed places?
Hynam has 6 heritage-listed places on record.
What is the typical lot size in Hynam?
Across 310 surveyed parcels in Hynam, the median lot size is about 80,781 m².
What is the population of Hynam?
At the 2021 Census Hynam had 198 usual residents, with a median age of 46 and an average household size of 2.6 people. The wider Naracoorte Surrounds statistical area, which contains Hynam, went from 2,704 people in 2001 to 2,475 in 2025, down 8%.
Is Hynam an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Hynam scores 1041 and sits in decile 8 of 10 nationally and decile 9 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Hynam?
Median household income in Hynam was $1,708 a week at the 2021 Census, against $1,796 for the typical suburb in Naracoorte Lucindale Council. Median rent was $200 a week and the median mortgage repayment $1,099 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Laurie Park | 7.5 km | 0% | 99% |
| Kybybolite | 10.7 km | <1% | 100% |
| Koppamurra | 11.1 km | 0% | 100% |
| Mount Light | 11.3 km | 0% | 100% |
| Naracoorte | 13.1 km | <1% | 100% |
| Wild Dog Valley | 15.0 km | 0% | 100% |
| Joanna | 16.9 km | 0% | 100% |
| Binnum | 19.5 km | 0% | 100% |
| Struan | 20.5 km | 0% | 100% |
| Wrattonbully | 21.7 km | <1% | 100% |