Dangar Island vs Wondabyne: true annual running costs compared (2026)
Last updated July 2026 · council rates current NSW schedules, ATO 91c/km, Opal & Translink fares, AER electricity benchmarks
Dangar Island (Hornsby rates (OLG) and Wondabyne (Central Coast rates (OLG) attract comparison from buyers considering suburbs across different council areas at similar distances from Sydney CBD (36.8 km and 40.9 km).
Dangar Island runs $756 a year cheaper than Wondabyne, driven mostly by home insurance. Over 10 years at 3% growth that gap compounds to about $8,667.
Over 10 years, Dangar Island costs about $8,700 less to run than Wondabyne — the same as paying $8,700 less for the home. It's the cost no listing shows you.
Get the free report: 10-year costs, flood & fire risk, crime, schools and overall verdict →Dangar Island
Wondabyne
Annual cost breakdown
| Category | Dangar Island | Wondabyne | Difference |
|---|---|---|---|
| Council rates | $1,541 | $1,454 | +$87 |
| Water & sewerage | $1,548 | $1,300 | +$248 |
| Commute (driving) | $6,944 | $6,985 | -$41 |
| Commute (public transport) | $2,400 | $2,400 | - |
| Home insurance | $2,600 | $3,650 | -$1,050 |
| Body corporate (unit) | $2,100 | $2,100 | - |
| Total (driving) | $12,633 | $13,389 | -$756 |
| Total (public transport) | $8,089 | $8,804 | -$715 |
Green = cheaper. Commute: ATO 91c/km, 220 working days. Insurance AI-estimated; actual premiums vary. Council rates: average residential rate (NSW, IPART-uplifted).
| Dwelling | Dangar Island | Wondabyne | Difference |
|---|---|---|---|
| House | $2,342 | $2,342 | - |
| Unit | $1,909 | $1,909 | - |
Estimated from AER residential benchmarks for each suburb's climate zone at 2026-27 regulated prices for each suburb's electricity network, including supply charge (AER Default Market Offer caps, or the QCA price in regional Queensland; unit ≈ 75% of a house). Get the free report for a breakdown by your exact number of occupants.
Cost breakdown chart
Annual cost breakdown — Dangar Island vs Wondabyne (2026-27)
What the numbers show
Dangar Island costs $756 less per year to run by car. Held over ten years at 3% annual cost growth, that gap compounds to $8,667 in favour of Dangar Island.
The biggest single gap is home insurance at $1,050 per year. Wondabyne carries high flood risk, which pushes estimated premiums higher.
On public transport the gap is $715 per year, $8,089 from Dangar Island versus $8,804 from Wondabyne.
Where the difference actually comes from
- Council rates favours Wondabyne by $87 a year, $1,454 against $1,541.
- Water and sewerage favours Wondabyne by $248 a year, $1,300 against $1,548.
- Driving commute favours Dangar Island by $41 a year, $6,944 against $6,985.
- Building insurance favours Dangar Island by $1,050 a year, $2,600 against $3,650.
They sit in different council areas, so the rates line is set by two different councils. For NSW that figure is the average residential rate reported to the Office of Local Government, uplifted by that council's IPART rate peg.
Flood risk is rated high in Wondabyne against medium in Dangar Island, which feeds the insurance estimate. Fire risk is rated high in Wondabyne against medium in Dangar Island, which feeds the insurance estimate.
10-year cumulative cost projection
| Year | Dangar Island cumulative | Wondabyne cumulative | Difference |
|---|---|---|---|
| Year 1 | $12,633 | $13,389 | $756 |
| Year 3 | $39,047 | $41,384 | $2,337 |
| Year 5 | $67,070 | $71,084 | $4,014 |
| Year 10 | $144,823 | $153,490 | $8,667 |
Assumes 3% annual cost growth. Excludes purchase price, mortgage, and personal expenses.
Frequently asked questions
Is Dangar Island or Wondabyne cheaper to live in?
Dangar Island is cheaper to run by car at $12,633 per year versus $13,389 for Wondabyne, a difference of $756 annually. Figures cover council rates, water, commute (ATO 91c/km), and home insurance. Source: SuburbCost 2026 data.
What are council rates in Dangar Island and Wondabyne?
Annual council rates for a house are $1,541 in Dangar Island (Hornsby rates (OLG) and $1,454 in Wondabyne (Central Coast rates (OLG). Water and sewerage adds $1,548 in Dangar Island and $1,300 in Wondabyne. Both figures are the average residential rate reported to the Office of Local Government, uplifted by each council's IPART rate peg.
How does the commute cost compare between Dangar Island and Wondabyne?
Annual driving commute costs are $6,944 from Dangar Island and $6,985 from Wondabyne to Sydney CBD (ATO 91c/km). Public transport costs $2,400 from Dangar Island and $2,400 from Wondabyne.
What is the 10-year cost difference between Dangar Island and Wondabyne?
At 3% annual cost growth, Dangar Island costs a cumulative $144,823 and Wondabyne costs $153,490 over 10 years by car. The cumulative difference is $8,667 in favour of Dangar Island. Excludes purchase price, mortgage, and personal expenses.
Which of Dangar Island and Wondabyne is best to actually live in?
You've got the costs. Get the free personalised report for the rest: a clear verdict on which suburb wins, the full flood, fire and crime risk profile, nearest schools, estimated electricity cost by number of occupants, and your own loan or rent stress-tested over 10 years. No spam.
Related comparisons
Sources: Hornsby rates (OLG and Central Coast rates (OLG rate data, water utility pricing (QLD: Queensland Urban Utilities / Unitywater; NSW: Sydney Water / Hunter Water), ATO 91c/km, and SuburbCost AI insurance estimates. Data updated July 2026.