Dee Why Beach at a glance
Walk score
100
Walker's paradise
Population
42.9k
Median age 38
The brief
What to know about Dee Why Beach.
The postcode for Dee Why Beach is 2099 (NSW), part of Greater Sydney.
Dee Why Beach (2099) sits in the Northern Beaches region of NSW.
Dee Why Beach has roughly 42,917 residents, with a typical family-age mix. Households are dominated by renters. Day-to-day life here is very walkable, with most errands manageable on foot.
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Day to day
What it’s like to live here.
Dee Why Beach scores 100/100 on walkability, which makes it very walkable with limited public transport. Coffee, groceries and a meal out are mostly walking-distance, which keeps a household viable on one car.
Summer days here average around 26°C (mild), winter mornings around 8°C (mild). Annual rainfall lands at about 1302mm. Data comes from the Bureau of Meteorology's Sydney (Observatory Hill) station, 32.5km away.
Schooling within or near the suburb covers 8 government primary, 3 government secondary, 3 Catholic, 4 independent.
Who lives here
Demographics.
The 2021 Census put Dee Why Beach's population at 42,917, with a median age of 38. That sits as a typical family-age mix.
Population
42,917
Median age
38
Family households
–
Lone person
–
Market
The price of a home here.
Median house price
Verified median pending
We don't yet have a verified suburb-level median for this market. We're working on a data partner; in the meantime, treat the state-level figures as a guide only. How we source data.
Rental and ownership
Weekly rent (house)
$550/wk
Weekly rent (unit)
$468/wk
Owner occupied
–
Renter occupied
–
At a deeper level
42,917
Median age: 38
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Getting around
Walkability.
100
20
100
Scores calculated from OpenStreetMap data (ODbL)
Walkability data as of May 2026· OpenStreetMap
Place
Location.
Amenities
Transport
Education
Schools in Dee Why Beach.
Local schools for Dee Why Beach
View the catchment for each school to find out more.
Government School Catchment
Dee Why Public School
Fisher Road School
Curl Curl North Public School
© ACARA, licensed under CC BY 4.0.
Climate
Weather year-round.
Annual Rainfall
1302 mm
Hottest Month (avg max)
26.2°C
Coldest Month (avg min)
8.4°C
Monthly Rainfall (mm)
Weather data from BOM station Sydney (Observatory Hill) (33 km away)
Climate data as of May 2026· Bureau of Meteorology
Frequently asked
About Dee Why Beach.
- What is the Dee Why Beach postcode?
- Dee Why Beach is in the 2099 postcode, in NSW, in the Northern Beaches Council region.
- Where is Dee Why Beach?
- Dee Why Beach is a suburb of Sydney, in NSW 2099. It is part of the Greater Sydney area, in the Northern Beaches Council region.
- What is the average rent in Dee Why Beach?
- The median weekly rent for houses is $550, for units it's $468.
- What schools are in Dee Why Beach?
- There are 20 schools serving Dee Why Beach on this page, including St Kevin's Catholic Primary School, Dee Why Public School, Fisher Road School.
- How walkable is Dee Why Beach?
- Dee Why Beach has a Walk Score of 100 out of 100, very walkable. transit score 20, bike score 100.
- What suburbs are near Dee Why Beach?
- Dee Why Beach is close to Wingala, Dee Why, North Curl Curl, Cromer, Cromer Heights.
- What is the population of Dee Why Beach?
- The population of Dee Why Beach is approximately 42,917 (2021 Census). The median age is 38.
For Sale
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Surrounding Suburbs
Side by side
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Sources cited
Median, growth and rental data from state revenue offices and ABS. Census from ABS 2021. Climate from BoM. Hazard from Geoscience Australia. School data from ACARA. Crime from state police open data. Full methodology →
Always dated
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