Nalpa flood map & planning overlays
A planning-constraint profile of Nalpa
(The Rural City of Murray Bridge, SA) - 27.5 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
27.5 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Nalpa's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
Aircraft noise and flight paths over Nalpa
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.
Nalpa at a glance
How Nalpa is zoned
Selling in Nalpa? 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 27.5 km², Nalpa is highly constrained by planning overlays. About 100% of the suburb sits within a mapped flood overlay, and 100% is flagged bushfire-prone. The dominant land-use zone is Rural. The median lot measures about 341,088 m² across 74 parcels.
Who lives in Nalpa
Census 2021 figures published by the ABS for the Nalpa 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 913, and decile 2 within South Australia. The national average is 1000.
Age profile
Share of Nalpa's 184 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Murray Bridge Surrounds, the wider ABS statistical area containing Nalpa. There is no annual population series published at suburb level, so this describes the surrounding area rather than Nalpa itself.
3,472 in 2001 to 3,993 in 2025, up 15%.
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.
Nalpa 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 Nalpa 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.
Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and an indicative AS 2870 site class for a Nalpa lot.
See what's in the $9 report →Nalpa planning - frequently asked
Is Nalpa flood-prone?
About 100% of Nalpa falls within a mapped flood overlay, against the council-wide suburb average of 47%.
Is Nalpa bushfire-prone?
Around 100% of Nalpa is mapped as bushfire-prone, compared with a The Rural City of Murray Bridge average of 99%.
Is Nalpa under a flight path?
No aircraft were observed over Nalpa in the period sampled (4 Sep 2026 to 3 Oct 2026). Sampling is intermittent, so that is a floor rather than proof that none fly over. 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 Nalpa?
The dominant planning zone in Nalpa is Rural, though the suburb also includes Conservation.
Does Nalpa have heritage-listed places?
No heritage-listed places are on record within Nalpa.
What is the typical lot size in Nalpa?
Across 74 surveyed parcels in Nalpa, the median lot size is about 341,088 m².
What is the population of Nalpa?
At the 2021 Census Nalpa had 184 usual residents, with a median age of 58 and an average household size of 2.1 people. The wider Murray Bridge Surrounds statistical area, which contains Nalpa, went from 3,472 people in 2001 to 3,993 in 2025, up 15%.
Is Nalpa an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Nalpa scores 913 and sits in decile 2 of 10 nationally and decile 2 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Nalpa?
Median household income in Nalpa was $971 a week at the 2021 Census, against $1,379 for the typical suburb in The Rural City of Murray Bridge. Median rent was $200 a week and the median mortgage repayment $1,083 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Wellington | 5.3 km | 63% | 100% |
| Wellington East Coorong District Council |
5.6 km | 100% | 100% |
| Mulgundawa | 9.5 km | 59% | 100% |
| Jervois | 13.3 km | 29% | 100% |
| Brinkley | 16.6 km | 0% | 100% |
| Lake Alexandrina | 17.1 km | 100% | 100% |
| Woods Point | 17.3 km | 39% | 100% |
| Ashville Coorong District Council |
17.3 km | 30% | 100% |
| Poltalloch Coorong District Council |
18.2 km | 44% | 100% |
| Cooke Plains Coorong District Council |
18.6 km | 21% | 100% |