Couridjah zoning & planning overlays
A planning-constraint profile of Couridjah
(Wollondilly, NSW) - 2.84 km², mapped from live council and
state overlay data. This suburb is highly constrained on the overlays we could measure - no flood mapping covers this suburb, so this is not a suburb-wide verdict.
Profile updated 26 September 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
2.84 km² - this suburb is highly constrained on the overlays we could measure - no flood mapping covers this suburb, so this is not a suburb-wide verdict.
Elevation hillshade with street names, clipped to Couridjah's boundary, with the bushfire and environmental overlays drawn on top. Magenta is where aircraft were observed in the sampled period, brightest below 3,000 ft. No flood layer is drawn because we hold no flood mapping for this area.
Nearby suburbs, nearest first
Aircraft noise and flight paths over Couridjah
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 25 Sep 2026
typical observed square 1 a day
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.
Couridjah at a glance
How Couridjah is zoned
Buying in Couridjah? 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 2.84 km², Couridjah is highly constrained by the planning overlays we hold. We hold no flood mapping covering this suburb, so no flood figure is shown - that is a gap in our data, not an all-clear. Of what is mapped, 100% is flagged bushfire-prone. There are 6 heritage-listed sites on record, and the dominant land-use zone is Primary Production Small Lots. The median lot measures about 2,023 m² across 131 parcels.
Who lives in Couridjah
Census 2021 figures published by the ABS for the Couridjah 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 982, and decile 5 within New South Wales. The national average is 1000.
Age profile
Share of Couridjah's 282 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Picton - Tahmoor - Buxton, the wider ABS statistical area containing Couridjah. There is no annual population series published at suburb level, so this describes the surrounding area rather than Couridjah itself.
14,113 in 2001 to 22,603 in 2025, up 60%.
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.
Couridjah data sources and coverage
“Not mapped” means we hold no source layer for this suburb - never an all-clear.
| Dataset | Coverage | Publisher |
|---|---|---|
| Flood mapping | Not 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 26 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 Couridjah 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.
Aircraft have been seen below 3,000 ft over about 85% of Couridjah. 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 Couridjah lot.
See what's in the $9 report →Couridjah planning - frequently asked
Is Couridjah flood-prone?
We don't yet hold flood mapping covering Couridjah, so this page can't say how much of the suburb is flood-affected - that is a gap in our data, not an indication that the suburb is free of flood risk. Wollondilly is the authority to check for flood mapping in this area.
Is Couridjah bushfire-prone?
Around 100% of Couridjah is mapped as bushfire-prone, compared with a Wollondilly average of 93%.
Is Couridjah under a flight path?
Aircraft were observed below 3,000 ft over about 85% of Couridjah, and over about 100% at any altitude up to 10,000 ft, in the period sampled (4 Sep 2026 to 25 Sep 2026). The lowest measured aircraft was at 1,500 ft, with an average of 3,500 ft. At the busiest point in the suburb about 2 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 Couridjah?
The dominant planning zone in Couridjah is Primary Production Small Lots, though the suburb also includes Rural Landscape and Primary Production.
Does Couridjah have heritage-listed places?
Couridjah has 6 heritage-listed places on record.
What is the typical lot size in Couridjah?
Across 131 surveyed parcels in Couridjah, the median lot size is about 2,023 m².
Does Couridjah have a train station?
There is no train station inside Couridjah itself. The suburb is served by 12 bus stops.
What is the population of Couridjah?
At the 2021 Census Couridjah had 282 usual residents, with a median age of 40 and an average household size of 2.9 people. The wider Picton - Tahmoor - Buxton statistical area, which contains Couridjah, went from 14,113 people in 2001 to 22,603 in 2025, up 60%.
Is Couridjah an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Couridjah scores 982 and sits in decile 5 of 10 nationally and decile 5 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Couridjah?
Median household income in Couridjah was $1,791 a week at the 2021 Census, against $2,250 for the typical suburb in Wollondilly. Median rent was $365 a week and the median mortgage repayment $2,250 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Buxton | 3.1 km | 0% | 93% |
| Tahmoor | 3.4 km | Not mapped | 70% |
| Thirlmere | 3.4 km | Not mapped | 88% |
| Bargo | 6.2 km | 0% | 89% |
| Lakesland | 6.4 km | 0% | 100% |
| Balmoral Village Wingecarribee |
8.2 km | 0% | 100% |
| Picton | 8.6 km | Not mapped | 84% |
| Mowbray Park | 8.6 km | Not mapped | 99% |
| Maldon | 8.7 km | Not mapped | 85% |
| Pheasants Nest | 8.7 km | 0% | 97% |