Kiar vs Wallarah, true annual running costs compared 2026
Last updated July 2026 · council rates current NSW schedules, ATO 91c/km, Opal & Translink fares, AER electricity benchmarks
Kiar and Wallarah are both Central Coast rates (OLG suburbs, sitting 77.2 km and 75.3 km from Sydney CBD respectively, and are commonly compared by buyers weighing up running costs within the same council area.
The two sit within $217 a year of each other to run, so running cost is a minor factor here. The decision comes down to schools, risk and lifestyle, all in the free report.
Over 10 years the gap between these two is about $2,500, about $5 a week, and most of it is the AI-estimated insurance line.
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Wallarah
Annual cost breakdown
| Category | Kiar | Wallarah | Difference |
|---|---|---|---|
| Council rates Official, 2026-27 | $1,454 | $1,454 | - |
| Water & sewerage Estimated | $1,300 | $1,300 | - |
| Commute (driving) Modelled, 2026-27 | $3,372 | $3,289 | +$83 |
| Commute (public transport) Modelled, 2026-27 | $2,400 | $2,400 | - |
| Home insurance Estimated | $1,550 | $1,850 | -$300 |
| Body corporate (unit) Estimated | $1,800 | $1,800 | - |
| Total (driving) | $7,676 | $7,893 | -$217 |
| Total (public transport) | $6,704 | $7,004 | -$300 |
Totals exclude electricity, estimated separately below. Green = cheaper. Commute: ATO 91c/km, 220 working days. Insurance estimated from ACCC premium rates; actual premiums vary. Council rates: average residential rate (NSW, IPART-uplifted).
| Dwelling | Kiar | Wallarah | 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, Kiar vs Wallarah (2026-27)
What the numbers show
Kiar and Wallarah differ by $217 a year by car, but $300 of that is the building insurance estimate rather than a published figure. On the sourced costs, council rates, water and the commute, the gap is $83, so neither suburb is named cheaper here.
The biggest single gap is home insurance at $300 per year. Wallarah carries medium flood risk, which pushes estimated premiums higher.
On public transport the gap is $300 per year, $6,704 from Kiar versus $7,004 from Wallarah.
Where the difference actually comes from
- Council rates is identical at $1,454 a year.
- Water and sewerage is identical at $1,300 a year.
- Driving commute favours Wallarah by $83 a year, $3,289 against $3,372.
- Building insurance favours Kiar by $300 a year, $1,550 against $1,850.
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 medium in Wallarah against low in Kiar, which feeds the insurance estimate.
10-year cumulative cost projection
| Year | Kiar cumulative | Wallarah cumulative | Difference |
|---|---|---|---|
| Year 1 | $7,676 | $7,893 | $217 |
| Year 3 | $23,726 | $24,396 | $670 |
| Year 5 | $40,753 | $41,905 | $1,152 |
| Year 10 | $87,997 | $90,484 | $2,487 |
Assumes 3% annual cost growth. Excludes purchase price, mortgage, and personal expenses.
Frequently asked questions
Is Kiar or Wallarah cheaper to live in?
Neither is named cheaper. Kiar runs $7,676 a year by car and Wallarah $7,893, but most of the $217 difference is the building insurance estimate rather than a published figure. On council rates, water and the commute, which are sourced, the gap is $83. Source: SuburbCost 2026 data.
What are council rates in Kiar and Wallarah?
Annual council rates for a house are $1,454 in Kiar (Central Coast rates (OLG) and $1,454 in Wallarah (Central Coast rates (OLG). Water and sewerage adds $1,300 in Kiar and $1,300 in Wallarah. 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 Kiar and Wallarah?
Annual driving commute costs are $3,372 from Kiar and $3,289 from Wallarah to Sydney CBD (ATO 91c/km). Public transport costs $2,400 from Kiar and $2,400 from Wallarah.
What is the 10-year cost difference between Kiar and Wallarah?
At 3% annual cost growth, Kiar costs a cumulative $87,997 and Wallarah costs $90,484 over 10 years by car. The cumulative difference is $2,487 in favour of Kiar. Excludes purchase price, mortgage, and personal expenses.
Which of Kiar and Wallarah suits you better?
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Sources: Central Coast 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 insurance estimates from ACCC premium rates. Data updated July 2026.