South Johnstone QLD

Postcode 4859 · Cassowary Coast LGA

South Johnstone is a quiet locality in Queensland within the Cassowary Coast local government area (postcode 4859). With a population of 456, the suburb has an established demographic with a median age of 44. Households earn a median income of $59K per year, with an average household size of 2.3 people. The most common occupations are labourers, technicians & trades, machinery operators & drivers. The top ancestries reported are Australian, English, Aboriginal Australian.

The median weekly rent is $240 (Census 2021). The median monthly mortgage repayment is $867.

South Johnstone is served by 2 schools, including 2 primary. The average ICSEA score is 917, which is below the national average of 1,000. The crime rate in the Cassowary Coast LGA is moderate at 5,615 incidents per 100,000 population.

SEIFA INDEX (ABS)
Advantage2/10
Education1/10
Economic1/10
Disadvantage1/10
MEDIAN RENT /WK
$240
POPULATION
456
DEMOGRAPHICS
Median Age44
Household Size2.3
HH Income /wk$1,125
Personal Income /wk$562
Mortgage /mth$867
CRIME (Cassowary Coast LGA)
Crime Rate (per 100k)5,615
Total Incidents5,615
SCHOOLS (2)
Avg ICSEA917
Total Students127
Catholic1
Government1
St Rita's SchoolPrimary · Catholic · ICSEA 970
South Johnstone State SchoolPrimary · Government · ICSEA 864
Data: Year ending Dec 2026