Northfield SA

Postcode 5085 · Port Adelaide Enfield LGA

Northfield is a mid-sized suburb in South Australia within the Port Adelaide Enfield local government area (postcode 5085). With a population of 5,043, the suburb has a mix of young professionals and families with a median age of 35. Households earn a median income of $74K per year, with an average household size of 2.6 people. The most common occupations are professionals, community & personal service, technicians & trades. The top ancestries reported are English, Australian, Indian.

The median house price in Northfield is $911,000, having grown strongly 7.1% over the past year. The current median weekly rent is $558. This gives a gross rental yield of approximately 3.2%. The median monthly mortgage repayment is $1,580.

Northfield is served by 1 school, including 1 primary. The average ICSEA score is 982, which is around the national average of 1,000. Public transport access includes 14 bus stops. The crime rate in the Port Adelaide Enfield LGA is higher than average at 8,725 incidents per 100,000 population.

From an investment perspective, Northfield offers a gross rental yield of 3.2%, rated as moderate yield. Property prices are near the state median ($911K/$950K). The price-to-income ratio of 12.3x is considered stretched. House prices have moved +7.1% year-on-year.

INVESTMENT SIGNALS
Rental Yield3.2% Moderate Yield
Price vs State$911K/$950K Near Median
Affordability12.3x Stretched
Price Momentum+7.1% Rising
SEIFA INDEX (ABS)
Advantage2/10
Education4/10
Economic1/10
Disadvantage2/10
MEDIAN HOUSE
$911K
7.1% YoY
MEDIAN RENT /WK
$307
POPULATION
5,043
DEMOGRAPHICS
Median Age35
Household Size2.6
HH Income /wk$1,420
Personal Income /wk$679
Mortgage /mth$1,580
CRIME (Port Adelaide Enfield LGA)
Crime Rate (per 100k)8,725
Total Incidents440
TRANSPORT
Bus Stops14
SCHOOLS (1)
Avg ICSEA982
Total Students352
Government1
Northfield Primary SchoolPrimary · Government · ICSEA 982
Data: 2025-Q4