Castlemaine flood map & planning overlays
Castlemaine is Mount Alexander's biggest town, 7,506 people, on its smallest lots.
Free map preview, then PDF reports from $9 - about the price of an iced latte on a public holiday.
A planning-constraint profile of Castlemaine
(Mount Alexander, VIC) - 20.17 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 25 October 2026.
Constraint readout
20.17 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Castlemaine'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 Castlemaine
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 24 Oct 2026
typical observed square 0 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.
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.
Castlemaine at a glance
How Castlemaine is zoned
Selling in Castlemaine? The zoning and planning overlays on this page are the controls a Section 32 vendor statement discloses.
Across its 20.17 km², Castlemaine is highly constrained by planning overlays. About 10% of the suburb sits within a mapped flood overlay, and 92% is flagged bushfire-prone. There are 190 heritage-listed sites on record, and the dominant land-use zone is General Residential Zone (GRZ1). The median lot measures about 763 m² across 5,797 parcels.
Who lives in Castlemaine
Census 2021 figures published by the ABS for the Castlemaine 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 980, and decile 4 within Victoria. The national average is 1000.
Age profile
Share of Castlemaine's 7,506 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Castlemaine, the wider ABS statistical area containing Castlemaine. There is no annual population series published at suburb level, so this describes the surrounding area rather than Castlemaine itself.
9,358 in 2001 to 11,640 in 2025, up 24%.
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.
Castlemaine 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 | Vicmap Planning and Victorian Government spatial services |
| Bushfire-prone mapping | Mapped | Vicmap Planning and Victorian Government spatial services |
| Zoning | Mapped | Vicmap Planning and Victorian Government spatial services |
| Heritage and environment | Mapped where published | Vicmap Planning and Victorian Government spatial services |
| Aircraft noise contours (ANEF) | Not held | Vicmap Planning and Victorian Government spatial services, 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 25 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 Castlemaine 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 →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 the indicative soil reactivity range to expect for a Castlemaine lot.
Castlemaine planning - frequently asked
Is Castlemaine flood-prone?
About 10% of Castlemaine falls within a mapped flood overlay, against the council-wide suburb average of 8%.
Is Castlemaine bushfire-prone?
Around 92% of Castlemaine is mapped as bushfire-prone, compared with a Mount Alexander average of 100%.
Is Castlemaine under a flight path?
Aircraft were observed over about 27% of Castlemaine 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 Castlemaine?
The dominant planning zone in Castlemaine is General Residential Zone (GRZ1), though the suburb also includes Public Conservation and Resource Zone (PCRZ) and Farming Zone (FZ1).
Does Castlemaine have heritage-listed places?
Castlemaine has 190 heritage-listed places on record.
What is the typical lot size in Castlemaine?
Across 5,797 surveyed parcels in Castlemaine, the median lot size is about 763 m². There are also 1,640 registered easements mapped in the suburb.
Does Castlemaine have a train station?
Yes - Castlemaine has 1 train station: Castlemaine Station. It is also served by 41 bus stops.
What is the population of Castlemaine?
At the 2021 Census Castlemaine had 7,506 usual residents, with a median age of 52 and an average household size of 2.0 people. The wider Castlemaine statistical area, which contains Castlemaine, went from 9,358 people in 2001 to 11,640 in 2025, up 24%.
Is Castlemaine an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Castlemaine scores 980 and sits in decile 5 of 10 nationally and decile 4 within Victoria (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Castlemaine?
Median household income in Castlemaine was $1,106 a week at the 2021 Census, against $1,402 for the typical suburb in Mount Alexander. Median rent was $300 a week and the median mortgage repayment $1,362 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Moonlight Flat (Castlemaine) | 2.9 km | 12% | 100% |
| Mckenzie Hill | 3.1 km | <1% | 100% |
| Barkers Creek | 4.1 km | 3% | 100% |
| Golden Point (Castlemaine) | 5.2 km | 1% | 100% |
| Campbells Creek | 5.3 km | 7% | 100% |
| Chewton | 5.9 km | 3% | 100% |
| Muckleford | 6.1 km | 8% | 100% |
| Chewton Bushlands | 7.1 km | Not mapped | 100% |
| Yapeen | 7.7 km | 7% | 100% |
| Harcourt | 8.1 km | 3% | 100% |