Dee Why NSW

Postcode 2099 · Northern Beaches LGA

Dee Why is a large suburb in New South Wales within the Northern Beaches local government area (postcode 2099). With a population of 23,354, the suburb has a mix of young professionals and families with a median age of 36. Households earn a median income of $110K per year, with an average household size of 2.3 people. The most common occupations are professionals, managers, technicians & trades. The top ancestries reported are English, Australian, Irish.

The median house price in Dee Why is $2.0 million, having dropped significantly 29.3% over the past year. Units have a median price of $1.1 million (+6.1% YoY). The current median weekly rent is $825. This gives a gross rental yield of approximately 2.1%. The median monthly mortgage repayment is $2,457.

Dee Why is served by 4 schools, including 2 primary, 1 combined, 1 special. The average ICSEA score is 1085, which is above the national average of 1,000. Public transport access includes 56 bus stops. Healthcare facilities include 2 private hospitals. The crime rate in the Northern Beaches LGA is low at 1,499 incidents per 100,000 population.

From an investment perspective, Dee Why offers a gross rental yield of 2.1%, rated as low yield. Property prices are above the state median ($2.0M/$1.5M), placing it in the premium segment. The price-to-income ratio of 18.3x is considered stretched. House prices have moved -29.3% year-on-year.

INVESTMENT SIGNALS
Rental Yield2.1% Low Yield
Price vs State$2.0M/$1.5M Above Median
Affordability18.3x Stretched
Price Momentum-29.3% Falling
INCOME (ATO 2022-23)
Median Income$66,798
Mean Income$79,622
Earners14,002
YoY Change+7.3%
SEIFA INDEX (ABS)
Advantage7/10
Education9/10
Economic3/10
Disadvantage9/10
MEDIAN HOUSE
$2.0M
-29.3% YoY
MEDIAN UNIT
$1.1M
6.1% YoY
MEDIAN RENT /WK
$550
POPULATION
23,354
DEMOGRAPHICS
Median Age36
Household Size2.3
HH Income /wk$2,106
Personal Income /wk$1065
Mortgage /mth$2,457
CRIME (Northern Beaches LGA)
Crime Rate (per 100k)1,499
Total Incidents4,058
TRANSPORT
Bus Stops56
SCHOOLS (4)
Avg ICSEA1085
Total Students2,199
Independent1
Government2
Catholic1
St Luke's Grammar SchoolCombined · Independent · ICSEA 1178
Dee Why Public SchoolPrimary · Government · ICSEA 1028
St Kevin's Catholic Primary SchoolPrimary · Catholic · ICSEA 1085
Fisher Road SchoolSpecial · Government · ICSEA 1050
HOSPITALS (2)
Dee Why Endoscopy Unitprivate
Delmar Private Hospitalprivate
Data: 2026