Bangor vs Illawong: true annual running costs compared (2026)
Last updated July 2026 · council rates current NSW schedules, ATO 91c/km, Opal & Translink fares, AER electricity benchmarks
Bangor and Illawong are both Sutherland rates (OLG suburbs, sitting 22.9 km and 21.5 km from Sydney CBD respectively, and are commonly compared by buyers weighing up running costs within the same council area.
Bangor runs $433 a year cheaper than Illawong, driven mostly by home insurance. Over 10 years at 3% growth that gap compounds to about $4,964.
Over 10 years these two cost about the same to run. The difference here isn't money — it's location, schools and lifestyle.
Get the free report: 10-year costs, flood & fire risk, crime, schools and overall verdict →Bangor
Illawong
Annual cost breakdown
| Category | Bangor | Illawong | Difference |
|---|---|---|---|
| Council rates | $1,617 | $1,617 | - |
| Water & sewerage | $1,548 | $1,548 | - |
| Commute (driving) | $5,711 | $5,494 | +$217 |
| Commute (public transport) | $2,400 | $2,400 | - |
| Home insurance | $2,600 | $3,250 | -$650 |
| Body corporate (unit) | $2,300 | $2,300 | - |
| Total (driving) | $11,476 | $11,909 | -$433 |
| Total (public transport) | $8,165 | $8,815 | -$650 |
Green = cheaper. Commute: ATO 91c/km, 220 working days. Insurance AI-estimated; actual premiums vary. Council rates: average residential rate (NSW, IPART-uplifted).
| Dwelling | Bangor | Illawong | 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 — Bangor vs Illawong (2026-27)
What the numbers show
Bangor costs $433 less per year to run by car. Held over ten years at 3% annual cost growth, that gap compounds to $4,964 in favour of Bangor.
The biggest single gap is home insurance at $650 per year. Illawong carries high flood risk, which pushes estimated premiums higher.
On public transport the gap is $650 per year, $8,165 from Bangor versus $8,815 from Illawong.
Where the difference actually comes from
- Council rates is identical at $1,617 a year.
- Water and sewerage is identical at $1,548 a year.
- Driving commute favours Illawong by $217 a year, $5,494 against $5,711.
- Building insurance favours Bangor by $650 a year, $2,600 against $3,250.
Both suburbs sit in the same council area, so the rates line is identical and none of the difference between them comes from council. What separates them is commute distance and the insurance band.
Flood risk is rated high in Illawong against medium in Bangor, which feeds the insurance estimate.
10-year cumulative cost projection
| Year | Bangor cumulative | Illawong cumulative | Difference |
|---|---|---|---|
| Year 1 | $11,476 | $11,909 | $433 |
| Year 3 | $35,471 | $36,810 | $1,339 |
| Year 5 | $60,928 | $63,226 | $2,298 |
| Year 10 | $131,559 | $136,523 | $4,964 |
Assumes 3% annual cost growth. Excludes purchase price, mortgage, and personal expenses.
Frequently asked questions
Is Bangor or Illawong cheaper to live in?
Bangor is cheaper to run by car at $11,476 per year versus $11,909 for Illawong, a difference of $433 annually. Figures cover council rates, water, commute (ATO 91c/km), and home insurance. Source: SuburbCost 2026 data.
What are council rates in Bangor and Illawong?
Annual council rates for a house are $1,617 in Bangor (Sutherland rates (OLG) and $1,617 in Illawong (Sutherland rates (OLG). Water and sewerage adds $1,548 in Bangor and $1,548 in Illawong. 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 Bangor and Illawong?
Annual driving commute costs are $5,711 from Bangor and $5,494 from Illawong to Sydney CBD (ATO 91c/km). Public transport costs $2,400 from Bangor and $2,400 from Illawong.
What is the 10-year cost difference between Bangor and Illawong?
At 3% annual cost growth, Bangor costs a cumulative $131,559 and Illawong costs $136,523 over 10 years by car. The cumulative difference is $4,964 in favour of Bangor. Excludes purchase price, mortgage, and personal expenses.
Which of Bangor and Illawong 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: Sutherland rates (OLG and Sutherland 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.