Eureka flood map & planning overlays
A planning-constraint profile of Eureka
(Byron, NSW) - 21.52 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
21.52 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Eureka'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 Eureka
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.
Eureka at a glance
How Eureka is zoned
Buying in Eureka? 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 21.52 km², Eureka is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 79% is flagged bushfire-prone. There are 14 heritage-listed sites on record, and the dominant land-use zone is Primary Production. The median lot measures about 20,043 m² across 197 parcels.
Who lives in Eureka
Census 2021 figures published by the ABS for the Eureka 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 1045, and decile 8 within New South Wales. The national average is 1000.
Age profile
Share of Eureka's 353 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Bangalow, the wider ABS statistical area containing Eureka. There is no annual population series published at suburb level, so this describes the surrounding area rather than Eureka itself.
5,132 in 2001 to 7,627 in 2025, up 49%.
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.
Eureka 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 Eureka 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 Eureka lot.
See what's in the $9 report →Eureka planning - frequently asked
Is Eureka flood-prone?
Flood mapping covers Eureka and less than 1% of the suburb falls within a mapped flood overlay (the council-wide suburb average is 22%).
Is Eureka bushfire-prone?
Around 79% of Eureka is mapped as bushfire-prone, compared with a Byron average of 94%.
Is Eureka under a flight path?
Aircraft were observed over about 18% of Eureka in the period sampled, but only above 3,000 ft - the lowest measured was 3,000 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 Eureka?
The dominant planning zone in Eureka is Primary Production, though the suburb also includes Rural Landscape and Environmental Conservation.
Does Eureka have heritage-listed places?
Eureka has 14 heritage-listed places on record.
What is the typical lot size in Eureka?
Across 197 surveyed parcels in Eureka, the median lot size is about 20,043 m². There are also 3 registered easements mapped in the suburb.
Does Eureka have a train station?
There is no train station inside Eureka itself. The suburb is served by 7 bus stops.
What is the population of Eureka?
At the 2021 Census Eureka had 353 usual residents, with a median age of 47 and an average household size of 2.5 people. The wider Bangalow statistical area, which contains Eureka, went from 5,132 people in 2001 to 7,627 in 2025, up 49%.
Is Eureka an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Eureka scores 1045 and sits in decile 9 of 10 nationally and decile 8 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Eureka?
Median household income in Eureka was $1,944 a week at the 2021 Census, against $1,634 for the typical suburb in Byron. Median rent was $455 a week and the median mortgage repayment $1,986 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Federal | 3.4 km | 0% | 97% |
| Possum Creek | 5.0 km | 0% | 99% |
| Nashua | 5.3 km | 16% | 85% |
| Binna Burra | 5.3 km | 12% | 99% |
| Rosebank Lismore |
5.4 km | Not mapped | 61% |
| Clunes | 5.5 km | 2% | 58% |
| Repentance Creek Lismore |
7.2 km | Not mapped | 100% |
| Booyong | 7.2 km | 20% | 90% |
| Bangalow | 7.4 km | 7% | 85% |
| Coorabell | 7.8 km | 0% | 99% |