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.
Kiar runs $367 a year cheaper than Wallarah, driven mostly by home insurance. Over 10 years at 3% growth that gap compounds to about $4,207.
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 →Kiar
Wallarah
Annual cost breakdown
| Category | Kiar | Wallarah | Difference |
|---|---|---|---|
| Council rates | $1,454 | $1,454 | - |
| Water & sewerage | $1,300 | $1,300 | - |
| Commute (driving) | $3,372 | $3,289 | +$83 |
| Commute (public transport) | $2,400 | $2,400 | - |
| Home insurance | $2,400 | $2,850 | -$450 |
| Body corporate (unit) | $1,800 | $1,800 | - |
| Total (driving) | $8,526 | $8,893 | -$367 |
| Total (public transport) | $7,554 | $8,004 | -$450 |
Green = cheaper. Commute: ATO 91c/km, 220 working days. Insurance AI-estimated; 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 costs $367 less per year to run by car. Held over ten years at 3% annual cost growth, that gap compounds to $4,207 in favour of Kiar.
The biggest single gap is home insurance at $450 per year. Wallarah carries medium flood risk, which pushes estimated premiums higher.
On public transport the gap is $450 per year, $7,554 from Kiar versus $8,004 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 $450 a year, $2,400 against $2,850.
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 | $8,526 | $8,893 | $367 |
| Year 3 | $26,353 | $27,487 | $1,134 |
| Year 5 | $45,266 | $47,214 | $1,948 |
| Year 10 | $97,741 | $101,948 | $4,207 |
Assumes 3% annual cost growth. Excludes purchase price, mortgage, and personal expenses.
Frequently asked questions
Is Kiar or Wallarah cheaper to live in?
Kiar is cheaper to run by car at $8,526 per year versus $8,893 for Wallarah, a difference of $367 annually. Figures cover council rates, water, commute (ATO 91c/km), and home insurance. 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 $97,741 and Wallarah costs $101,948 over 10 years by car. The cumulative difference is $4,207 in favour of Kiar. Excludes purchase price, mortgage, and personal expenses.
Which of Kiar and Wallarah 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: 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 AI insurance estimates. Data updated July 2026.