South Australia · Suburb Profile
Iron Knob SA — Suburb Profile
Population, median income, rent prices, housing costs and demographics for Iron Knob, South Australia. ABS Census 2021.
The population of Iron Knob SA is 110 according to the 2021 Census. The median personal income in Iron Knob is $457 per week ($23,764 per year). Median rent in Iron Knob is $130 per week ($563 per month). Iron Knob has a median age of 57 years, older than the national median of 38. Iron Knob has a population density of 14.3 people per km².
The most common overseas birthplace in Iron Knob is England. The most common religion is No Religion (37% of residents). The median monthly mortgage repayment in Iron Knob is $390.
There were 8 recorded offences in Iron Knob in 2025-26, a rate of 73 offences per 1,000 people. The most common offence category was assault (3 offences).
Iron Knob Map
Iron Knob Population
Iron Knob Median Income & Rent
Iron Knob Demographics
Gender Split
Population Density
Households
Iron Knob Age Distribution
Source: ABS Census 2021 — Suburb & Locality (SAL)
Iron Knob Housing Tenure
Source: ABS Census 2021 — Suburb & Locality (SAL)
Iron Knob Country of Birth
Source: ABS Census 2021 G09 — Country of Birth by SAL
Iron Knob Religion
Source: ABS Census 2021 G14 — Religion by SAL
Iron Knob Education Level
Source: ABS Census 2021 G16 — Highest Year of School by SAL
Iron Knob Employment
Source: ABS Census 2021 G46 — Labour Force Status by SAL
Iron Knob Qualifications
Source: ABS Census 2021 G49 — Non-School Qualification by SAL
Iron Knob Occupation
Source: ABS Census 2021 G51 — Industry of Employment by Occupation
Iron Knob Field of Study
Source: ABS Census 2021 G51 — Field of Study by SAL
Iron Knob Dwelling Types
Source: ABS Census 2021 G36 — Dwelling Structure by SAL
Iron Knob Weekly Household Income
Source: ABS Census 2021 G33 — Household Income by SAL
Iron Knob Marital Status
Source: ABS Census 2021 G05 — Marital Status by SAL
Iron Knob Ancestry
Source: ABS Census 2021 G08 — Ancestry by SAL
Iron Knob School & University Attendance
Source: ABS Census 2021 G15 — Type of Educational Institution by SAL
Iron Knob Need for Assistance
Source: ABS Census 2021 G18 — Core Activity Need for Assistance by SAL
Iron Knob Volunteering
Source: ABS Census 2021 G23 — Voluntary Work by SAL
Iron Knob Monthly Mortgage Repayments
Source: ABS Census 2021 G38 — Mortgage Repayment by SAL
Iron Knob How People Get to Work
Source: ABS Census 2021 G62 — Method of Travel to Work by SAL
Iron Knob Car Ownership
Source: ABS Census 2021 G34 — Motor Vehicles per Dwelling by SAL
Iron Knob Number of Bedrooms
Source: ABS Census 2021 G41 — Number of Bedrooms by SAL
Iron Knob Population Mobility
Source: ABS Census 2021 G43 — Summary by SAL
Iron Knob Indigenous Population
Source: ABS Census 2021 G07 — Indigenous Status by SAL
Iron Knob Long-term Health Conditions
Source: ABS Census 2021 G19 — Long-term Health Conditions by SAL
Iron Knob Personal Weekly Income Distribution
Source: ABS Census 2021 G17 — Personal Income by SAL
Iron Knob Family Structure
Source: ABS Census 2021 G29 — Family Composition by SAL
Iron Knob Military Service
Source: ABS Census 2021 G22 — ADF Service by SAL
Iron Knob Unpaid Carers
Source: ABS Census 2021 G25 — Unpaid Assistance by SAL
Iron Knob Children Ever Born
Source: ABS Census 2021 G28 — Children Ever Born by SAL
Iron Knob When Migrants Arrived
Source: ABS Census 2021 G10 — Year of Arrival by SAL
Iron Knob Unpaid Domestic Work
Source: ABS Census 2021 G24 — Unpaid Domestic Work by SAL
Iron Knob Household Size
Source: ABS Census 2021 G35 — Household Size by SAL
Iron Knob Where Residents Moved From
Source: ABS Census 2021 G44 — Address 1 Year Ago by SAL
Iron Knob Family Blending
Source: ABS Census 2021 G31 — Family Blending by SAL
Iron Knob Crime Statistics
Reported offences in 2025-26 — 8 total
Offence trend by year:
Source: SA Government Open Data — data.sa.gov.au
Iron Knob Rent Prices & Affordability
Rent is under 25% of household income — generally considered affordable.
If you earn X in Iron Knob
Iron Knob vs State & National Average
Nearby Suburbs in SA
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Frequently Asked Questions About Iron Knob
What is the population of Iron Knob SA?
The population of Iron Knob SA is 110 according to the ABS Census 2021.The suburb has a population density of 14.3 people per km².Iron Knob is ranked #8,678 out of 14,663 suburbs by population.
What is the median income in Iron Knob?
The median personal income in Iron Knob SA is $457 per week, or $23,764 per year.The median household income is $556 per week.Family income is $850 per week.Iron Knob is ranked #8,596 by income out of 14,663 Australian suburbs.
How much is rent in Iron Knob?
Median rent in Iron Knob SA is $130 per week ($563 per month).Rent represents 23.4% of household income, which is considered affordable.Iron Knob ranks #8,442 out of 14,663 suburbs by rent.
What are mortgage repayments in Iron Knob?
The median monthly mortgage repayment in Iron Knob SA is $390. This data comes from the ABS Census 2021 and reflects mortgage repayments for owner-occupied dwellings.
What is the median age in Iron Knob?
The median age in Iron Knob SA is 57 years.This is older than the national median age of 38 years.
Is Iron Knob a good suburb to live in?
Iron Knob is a suburb in South Australia with a population of 110.The median income is $457/wk, which is below the SA average of $763/wk.Rent affordability is rated as affordable (23.4% of household income). See the full suburb profile above for detailed statistics.
Data: Australian Bureau of Statistics, Census of Population and Housing 2021. SA2 area: 40627. All dollar figures in AUD.