Mount Marsh Demographics: Population, Age & Income Profile (NSW)

Mount Marsh, New South Wales· UNKNOWN
Mount Marsh has a medium demographic profile typical of New South Wales suburbsUpdated 3 May 2026

Liveability Score

5.5/10

Mount Marsh has a medium demographic profile typical of New South Wales suburbs

Key Facts

Median Age
38 years (state avg)
Median Household Income
$1,468/wk (state avg)
Families with Children
28.7% of households
Home Ownership
64.5% own — 31.5% rent
Postcode
2469
Highest high-risk exposure
19.9% of land (bushfire)

Demographics Analysis

Mount Marsh in New South Wales reflects the broader demographic characteristics of the region. According to the Australian Bureau of Statistics (ABS) 2021 Census, the typical household in New South Wales has a median weekly income of around $1,468, with a median age of 38 years.

The ABS reports that 28.7% of households in New South Wales are couples with children, while 24.7% are couples without children. Lone person households account for 24.5% of households. This family composition data helps home buyers understand the neighbourhood character and amenity demand.

Home ownership rates in New South Wales show that 64.5% of households own their home (with or without a mortgage), while 31.5% rent. These tenure patterns affect property turnover rates, rental demand, and neighbourhood stability — all important factors for home buyers evaluating Mount Marsh.

Climate risk is an increasingly important factor for property buyers evaluating suburbs like Mount Marsh. Different demographic groups face different climate exposure profiles — families may prioritise heat safety near schools, while retirees may be more concerned about insurance costs in flood-prone areas. Get an address-level climate risk report for your Mount Marsh property to understand how climate projections may affect your investment.

Mount Marsh (postcode 2469) is tracked in ClimateNest's suburb hazard model, which maps the share of the suburb's land exposed to each hazard at high and moderate levels. The suburb's highest high-risk exposures are bushfire (19.9% of land in high-risk zones), surface flood (7.9% of land in high-risk zones), riverine flood (5.9% of land in high-risk zones). Exposure is not uniform across Mount Marsh — individual properties can sit well above or below these averages, so an address-level check is recommended before buying, selling or insuring.

Adaptation & Mitigation Actions

Improve Flood Defenses

Near-term

Upgrade drainage infrastructure and implement flood barriers to protect properties from flooding.

Est. cost: Medium

Bushfire Mitigation

Immediate

Implement vegetation management programs and improve building standards to reduce bushfire risk.

Est. cost: High

Heatwave Preparedness

Near-term

Develop heatwave early warning systems and provide cooling centers for vulnerable populations.

Est. cost: Low

Community Awareness Programs

Long-term

Educate residents about climate risks and adaptation measures through workshops and online resources.

Est. cost: Low

Council & Emergency Services

UNKNOWN
Emergency Services

Data last updated: 3 May 2026

Explore Mount Marsh Risk Reports

Frequently Asked Questions

What is the population of Mount Marsh?

Population data for Mount Marsh comes from the ABS 2021 Census, the most recent national census. For the most current suburb-level population data, refer to ABS QuickStats or consult the New South Wales state government's population projections. Understanding population trends helps home buyers assess housing demand, infrastructure investment, and neighbourhood character.

What is the median age in Mount Marsh?

The median age for New South Wales is 38 years according to the 2021 ABS Census, which serves as a reference point for Mount Marsh. A younger median age often indicates more families and first home buyers, while older demographics suggest established households and potentially lower turnover. Both have implications for property demand and investment strategy.

What is the average household income in Mount Marsh?

The median weekly household income in New South Wales is $1,468 per week (ABS 2021 Census). Household income affects serviceability for mortgage lending, rental affordability, and the type of housing stock in demand within a suburb. Higher-income areas typically support stronger property values and faster capital growth. Combine demographic research with a climate risk report from ClimateNest for a complete property assessment.

What type of people live in Mount Marsh?

The demographic profile of Mount Marsh is broadly shaped by its location within New South Wales. According to the ABS Census, 28.7% of households in the state are couples with children, while 24.7% are couples without children. The overall population of New South Wales has a median age of 38 — use this as context when assessing the demographic character of Mount Marsh.

What share of Mount Marsh is exposed to high bushfire risk?

ClimateNest's hazard overlay maps 19.9% of Mount Marsh in high-risk zones for bushfire, with a further 71.8% in moderate-risk zones. Suburb-level exposure is not uniform — individual properties can differ from these averages, so an address-level check is recommended.

Is Mount Marsh Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Mount Marsh, New South Wales, covering flood, bushfire, sea level rise and more.

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What A$69 could save you from

$7.2B
2022 insured disaster losses*
$300B+
climate risk to property by 2050*
30-120%
insurance premium increases in high-risk areas*

*Industry sources: ICA, APRA, RBA

Full report from A$69 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections