Mannum at a glance
Walk score
4
Very car dependent
Population
2,919
Median age 56
The brief
What to know about Mannum.
The postcode for Mannum is 5238 (SA).
Mannum (5238) sits in the Karoonda East Murray region of South Australia.
Mannum has roughly 2,919 residents, with a retiree-heavy demographic. Households are mostly owner-occupied. Daily life is car-dependent: most residents drive to work, school and the shops.
Day to day
What it’s like to live here.
Mannum scores 4/100 on walkability, which makes it car-dependent with limited public transport. Plan for two cars in a typical household, especially if work isn't local.
Summer days here average around 28°C (warm), winter mornings around 7°C (cool). Annual rainfall lands at about 448mm. Data comes from the Bureau of Meteorology's Adelaide (Kent Town) station, 11.1km away.
Schooling within or near the suburb covers 2 government primary.
Who lives here
Demographics.
The 2021 Census put Mannum's population at 2,919, with a median age of 56. That sits as a retiree-heavy demographic. Households are mostly owner-occupied (71% own, 26% rent), which shapes everything from school catchment stability to how often properties turn over. The household mix skews family-dominated (63% family households, 35% lone person), so amenity decisions tend to follow what families want: parks, schools, supermarkets.
Population
2,919
Median age
56
Family households
63%
Lone person
35%
Demographics data as of May 2026· ABS 2021 Census
Market
The price of a home here.
Median house price
Verified median pending
We don't yet have a verified suburb-level median for this market. We're working on a data partner; in the meantime, treat the state-level figures as a guide only. How we source data.
Rental and ownership
Weekly rent (house)
$480/wk
Weekly rent (unit)
$220/wk
Owner occupied
71%
Renter occupied
26%
At a deeper level
2,919
Median age: 56
Rental data as of March 2026· rental-sa
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Safety
Crime and safety.
88
total offences in 2025-26
Top offence categories
Crime statistics are reported at LGA level and may cover a broader area than this suburb.
Source: State Police Open Data
Crime data as of June 2026· State Police Open Data
Getting around
Walkability.
4
0
5
Scores calculated from OpenStreetMap data (ODbL)
Walkability data as of May 2026· OpenStreetMap
Place
Location.
Amenities
Transport
Education
Schools in Mannum.
Local schools for Mannum
View the catchment for each school to find out more.
Government School Catchment
Mannum Community College
Palmer Primary School
Mypolonga Primary School
© ACARA, licensed under CC BY 4.0.
Climate
Weather year-round.
Annual Rainfall
448 mm
Hottest Month (avg max)
28.0°C
Coldest Month (avg min)
7.0°C
Monthly Rainfall (mm)
Weather data from BOM station Adelaide (Kent Town) (11 km away)
Climate data as of May 2026· Bureau of Meteorology
Frequently asked
About Mannum.
- What is the Mannum postcode?
- Mannum is in the 5238 postcode, in SA, in the Karoonda East Murray region.
- Where is Mannum?
- Mannum is a regional suburb in SA, postcode 5238, in the Karoonda East Murray region.
- What is the average rent in Mannum?
- The median weekly rent for houses is $480, for units it's $220.
- What schools are in Mannum?
- There are 3 schools serving Mannum on this page, including Mannum Community College, Palmer Primary School, Mypolonga Primary School.
- How walkable is Mannum?
- Mannum has a Walk Score of 4 out of 100, highly car-dependent. transit score 0, bike score 5.
- What suburbs are near Mannum?
- Mannum is close to Bolto, Port Mannum, Cowirra, Ponde, Frahns.
- What is the population of Mannum?
- The population of Mannum is approximately 2,919 (2021 Census). The median age is 56.
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Side by side
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Sources cited
Median, growth and rental data from state revenue offices and ABS. Census from ABS 2021. Climate from BoM. Hazard from Geoscience Australia. School data from ACARA. Crime from state police open data. Full methodology →
Always dated
Every figure on this page carries its source and as-of date in a tooltip. If a figure looks off to you, tell us and we’ll fix it within a week.
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