Diamondvale vs Kyoomba: true annual running costs compared (2026)
Last updated July 2026 · council rates 2026-27 (QLD), ATO 91c/km, Translink fares, AER electricity benchmarks
Diamondvale and Kyoomba are both Southern Downs Regional Council suburbs, and are commonly compared by buyers weighing up running costs within the same council area.
The two sit within $200 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 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 →Diamondvale
Kyoomba
Annual cost breakdown
| Category | Diamondvale | Kyoomba | Difference |
|---|---|---|---|
| Council rates | $1,416 | $1,416 | - |
| Water & sewerage stand-in | $1,900 | $1,900 | - |
| Commute (driving) | $18,200 | $18,200 | - |
| Commute (public transport) | $192 | $192 | - |
| Home insurance | $2,100 | $2,300 | -$200 |
| Body corporate (unit) | $1,300 | $1,400 | -$100 |
| Total (driving) | $23,616 | $23,816 | -$200 |
| Total (public transport) | $5,608 | $5,808 | -$200 |
Green = cheaper. Commute: ATO 91c/km, 220 working days. Insurance AI-estimated; actual premiums vary. Diamondvale's water charge is Queensland Urban Utilities's, standing in until its own council's schedule is loaded. Kyoomba's water charge is Queensland Urban Utilities's, standing in until its own council's schedule is loaded. Council rates: minimum residential general rate (QLD).
| Dwelling | Diamondvale | Kyoomba | Difference |
|---|---|---|---|
| House | $2,274 | $2,274 | - |
| Unit | $1,870 | $1,870 | - |
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 — Diamondvale vs Kyoomba (2026-27)
What the numbers show
Diamondvale and Kyoomba cost within $200 of each other annually by car. Over ten years with 3% annual growth the gap reaches roughly $2,293, making running cost a minor factor in the decision.
The biggest single gap is home insurance at $200 per year.
On public transport the gap is $200 per year, $5,608 from Diamondvale versus $5,808 from Kyoomba.
Where the difference actually comes from
- Council rates is identical at $1,416 a year.
- Water and sewerage is identical at $1,900 a year.
- Driving commute is identical at $18,200 a year.
- Building insurance favours Diamondvale by $200 a year, $2,100 against $2,300.
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 the insurance band.
10-year cumulative cost projection
| Year | Diamondvale cumulative | Kyoomba cumulative | Difference |
|---|---|---|---|
| Year 1 | $23,616 | $23,816 | $200 |
| Year 3 | $72,995 | $73,613 | $618 |
| Year 5 | $125,381 | $126,442 | $1,061 |
| Year 10 | $270,731 | $273,024 | $2,293 |
Assumes 3% annual cost growth. Excludes purchase price, mortgage, and personal expenses.
Frequently asked questions
Is Diamondvale or Kyoomba cheaper to live in?
Diamondvale is cheaper to run by car at $23,616 per year versus $23,816 for Kyoomba, a difference of $200 annually. Figures cover council rates, water, commute (ATO 91c/km), and home insurance. Source: SuburbCost 2026 data.
What are council rates in Diamondvale and Kyoomba?
Annual council rates for a house are $1,416 in Diamondvale (Southern Downs Regional Council) and $1,416 in Kyoomba (Southern Downs Regional Council). Water and sewerage adds $1,900 in Diamondvale and $1,900 in Kyoomba. Both figures are the minimum residential general rate; properties on higher land value pay more.
How does the commute cost compare between Diamondvale and Kyoomba?
Diamondvale carries a flat regional driving allowance of $18,200, about 20,000 km of household driving a year, because it is more than 100 km from Brisbane CBD. Kyoomba carries a flat regional driving allowance of $18,200, about 20,000 km of household driving a year, because it is more than 100 km from Toowoomba CBD. Public transport costs $192 from Diamondvale and $192 from Kyoomba.
What is the 10-year cost difference between Diamondvale and Kyoomba?
At 3% annual cost growth, Diamondvale costs a cumulative $270,731 and Kyoomba costs $273,024 over 10 years by car. The cumulative difference is $2,293 in favour of Diamondvale. Excludes purchase price, mortgage, and personal expenses.
Which of Diamondvale and Kyoomba 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.
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Sources: Southern Downs Regional Council and Southern Downs Regional Council 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.