Suburb profile · ABS Census 2021
Seaford Heights suburb profile
Seaford Heights, SA · Postcode 5169
This Seaford Heights suburb profile summarises official Australian Bureau of Statistics Census 2021 data for Seaford Heights, SA (postcode 5169). Use it as a free suburb report covering population, median rent, household income, age, housing tenure and employment, plus how those figures changed since Census 2016— then compare Seaford Heights with nearby suburbs.
Seaford Heights at a glance
Population
1,079
Median rent
$380/wk
Household income
$2,170/wk
Median age
29
Seaford Heights trends (2016 → 2021)
Change since the previous Census. Historical figures are mapped from State Suburbs (SSC) to today's suburb boundaries.
Population
Census 2011 → 2016 → 2021
+17883.3% over 10 years
Population
1,079
was 53 in 2016
+1,026 · +1935.8%
Household income
$2,170/wk
was $1,600/wk in 2016
+$570 · +35.6%
Median age
29
was 30 in 2016
-1 · -3.3%
Dig deeper: Seaford Heights population growth · Seaford Heights then and now
Seaford Heights vs nearby & Greater Adelaide
Median Census 2021 figures for Seaford Heights, nearby suburbs (8), and the Adelaide metro median (suburbs with 1,000+ people).
Rent
+16.6% vs area
- Seaford Heights$380/wk
- Nearby$329/wk
- Adelaide$326/wk
Household income
+35% vs area
- Seaford Heights$2,170/wk
- Nearby$1,432.5/wk
- Adelaide$1,607/wk
Median age
-27.5% vs area
- Seaford Heights29
- Nearby40.5
- Adelaide40
Personal income
+35.3% vs area
- Seaford Heights$1,081/wk
- Nearby$700.5/wk
- Adelaide$799/wk
Nearby uses the same postcode first, then larger suburbs in SA. See Adelaide rankings.
Socio-economic profile
How Seaford Heights compares to other Australian suburbs on income, education and occupation — from official ABS SEIFA 2021 data.
Seaford Heights sits above average for socio-economic advantage compared with suburbs Australia-wide.
Relative disadvantage (IRSD)
Decile 101,091.6
Lower score / decile = more relative disadvantage
Advantage & disadvantage (IRSAD)
Decile 81,027.7
Higher score / decile = more relative advantage
Economic resources (IER)
Decile 81,064.3
Access to economic resources (income, housing)
Education & occupation (IEO)
Decile 6985.9
Education and occupational skill levels
Source: ABS SEIFA 2021. See methodology.
Seaford Heights on the map
OpenStreetMap outline for Seaford Heights, SA.
Map data © OpenStreetMap contributors. Boundary matching is approximate.
Seaford Heights people
- Population
- 1,079
- Median age
- 29
- Born overseas
- 25.9%
- Average household size
- 2.6
Total usual residents (Census 2021)
Median age of residents in years
Percentage born outside Australia
Average number of people per household
Seaford Heights income
- Median household income
- $2,170/wk
- Median personal income
- $1,081/wk
Median total weekly household income
Median total weekly personal income
Seaford Heights housing
- Median rent
- $380/wk
- Median mortgage repayment
- $1,733/mo
- Separate houses
- 91.4%
- Flats & apartments
- 0%
- Owned outright
- 9.8%
- Mortgaged
- 65.8%
- Rented
- 22.5%
- Unoccupied dwellings
- 1.5%
Median weekly rent for rented dwellings
Median monthly mortgage repayment
Percentage of dwellings that are separate houses
Percentage of dwellings that are flats or apartments
Percentage of dwellings owned without a mortgage
Percentage of dwellings with a mortgage
Percentage of dwellings rented
Percentage of private dwellings unoccupied on Census night
Seaford Heights work
- Employment to population
- 81.8%
- Unemployment rate
- 2.3%
- Year 12 or above
- 65.6%
Employed persons as a percentage of population aged 15+
Unemployed persons as a percentage of the labour force
Percentage with Year 12 or equivalent as highest school level
Nearby suburb profiles (near 5169)
Compare Seaford Heights with nearby suburbs
Seaford Heights in numbers
Seaford Heights had 1,079 residents at the 2021 Census, making it the 411th most populous suburb or locality in SA out of 1,624. The median age is 29, 31% below the typical SA suburb. The average household has 2.6 people. 25.9% of residents were born overseas.
Among occupied homes, 9.8% own their home outright, 65.8% are paying a mortgage, 22.5% rent. Separate houses make up 91.4% of dwellings, with 0% in flats or apartments. Median rent was $380/wk, 23% above the typical SA suburb.
Median household income was $2,170/wk, 42% above the typical SA suburb. The unemployment rate on Census night was 2.3%. 65.6% of adults had completed Year 12 or above. On the ABS SEIFA index of relative socio-economic disadvantage it sits in decile 10 nationally (1 is most disadvantaged, 10 least).
Between the 2016 and 2021 Censuses the population grew 1935.8% (from 53 to 1,079).
Seaford Heights suburb FAQs
- What is the median rent in Seaford Heights, SA?
- The median weekly rent in Seaford Heights was $380/wk at the 2021 Census (ABS).
- How many people live in Seaford Heights, SA?
- Seaford Heights had 1,079 residents at the 2021 Census, up 1935.8% from 2016.
- What is the median household income in Seaford Heights?
- Median household income in Seaford Heights was $2,170/wk at the 2021 Census.
- Do most people rent or own in Seaford Heights?
- 22.5% of occupied homes in Seaford Heights were rented, 9.8% were owned outright and 65.8% were owned with a mortgage.
About this Seaford Heights suburb profile
Figures are from the ABS Census of Population and Housing 2021 (General Community Profile) for the Suburbs and Localities boundary matching Seaford Heights. Where shown, 2016 values come from the 2016 State Suburbs (SSC) profile, linked via ABS geographic correspondence — boundaries are not always identical. Medians may be suppressed for very small areas. This is not financial or relocation advice — use it alongside current market data.
Source: ABS Census 2021. Methodology · Richest suburbs in Adelaide