Residential Gas Rates by State: How Pricing Really Differs Across Australia

Ask what gas costs in Australia and you will get a state-by-state table of averages. Those tables are not wrong, exactly. They are just close to useless for deciding anything about your own bill, because residential gas pricing does not actually work at the level of states. It works at the level of pipe networks, tariff structures and individual plans, and averages flatten all of that away.

So instead of a table of numbers that will be stale by the time you read it, here is the structure: how gas pricing actually differs across NSW, Victoria, Queensland, South Australia, Tasmania and the ACT, what drives those differences, and where the live numbers belong when you want them. (Households in WA and the NT are on different market arrangements and are not covered here.)

It is your distribution zone, not your state

The first thing state averages hide: gas prices differ by distribution zone, which pipe network physically delivers your gas, not just by state. Distribution networks charge for carrying gas through their pipes, those charges differ from network to network, and retailers pass the differences through into their plans.

The practical consequence is that two suburbs in the same city, sitting on different networks, can see genuinely different prices for the same plan name from the same retailer. Your postcode determines your zone, your zone shapes your rates, and a "state average" blends zones that were never priced alike. This is also why any comparison worth trusting asks for your address or postcode before it shows you a single rate.

Two tariff shapes to know

Almost every residential gas plan in the covered states is built from the same two components: a daily supply charge, a fixed amount per day just for being connected, and usage rates, charged per megajoule of gas burned. The interesting differences are in how the usage rates are structured, and there are two dominant shapes.

Stepped block tariffs. The billing period's usage is split into blocks: the first so-many megajoules at one rate, the next block at another, and so on, with the per-megajoule rate typically declining as usage within the period climbs. Where your usage lands across the blocks matters as much as the headline first-block rate, which is why a plan with a flattering first block can lose to a plainer one once a real winter's usage is run through both.

Seasonal tariffs. The rate depends on the time of year: one set of prices for the winter months, another for the rest. Since household gas usage is dominated by heating and hot water, and both peak in winter, a plan's winter rates matter far more than its summer rates. A seasonal plan that looks middling in the annual fine print can be sharp or blunt in the two months that actually decide your yearly spend.

Many plans combine the two: seasonal blocks. This is the core reason gas plans resist eyeballing and reward being computed against a real bill.

State by state, structurally

Every figure in this section comes from our own Consumer Data Right plan store, read on 30 July 2026. The plan count is the active residential gas plans serving that state. Each range is the middle 80 per cent of those plans, the tenth percentile to the ninetieth, quoted inclusive of GST so it reads the way your bill does rather than the way a plan document does.

Victoria is the country's biggest residential gas market, with the deepest plan competition and, commonly, seasonal tariffs reflecting its heating-dominated winters. More households cook, heat and shower on gas there than anywhere else, and the plan count shows it: 1,152 active residential gas plans in our store, spread across four distribution zones. Typical daily supply charges run around 83 cents to $1.27, with first-block or winter usage rates around 3.4 to 5.2 cents per MJ.

New South Wales is the second-deepest market, more often built on stepped block tariffs than seasonal ones, with several distribution zones that price differently across the state (428 active plans across fifteen zones; supply charges typically 68 cents to $1.23; first-block rates typically 3.5 to 6.2 cents per MJ).

South Australia runs a competitive retail market on stepped blocks, with 65 active plans, supply charges typically 82 cents to $1.19 and first-block rates typically 5.4 to 9.6 cents per MJ, the highest usage rates of any market covered here.

Queensland has a smaller residential gas footprint, fewer connected households and a thinner plan market: 124 active plans, supply charges typically 32 cents to $1.28, first-block rates typically 3.9 to 7.6 cents per MJ. Note how wide both of those ranges are. Thinner competition makes checking your plan more worthwhile, not less: fewer offers does not mean similar prices, and in Queensland the spread between plans is the widest on this page.

The ACT is a compact single-territory market where gas has historically carried Canberra's cold winters: 33 active plans on a single distribution zone, supply charges typically 63 cents to $1.00, first-block rates typically 4.0 to 5.7 cents per MJ.

Tasmania has the smallest reticulated gas network of the six, with limited coverage and the fewest plans. It is also the one market here where we have no figures to give you: no Tasmanian residential gas plan appears in the Consumer Data Right plan data our store holds, read on 30 July 2026, although Tasmanian electricity plans appear in numbers. Until that changes, a Tasmanian gas household has less published pricing to compare against than anyone else on this list, which makes the structural points below matter more rather than less.

Supply charges move independently of usage rates

A detail that undoes many quick comparisons: the daily supply charge and the usage rates vary independently, between states, between zones and between plans in the same zone. One plan wins on a low supply charge and gives it back per megajoule; another does the reverse. Which trade-off wins depends entirely on how much gas your household uses. A low-usage home (cooktop and not much else) is dominated by the supply charge; a heating-heavy winter home is dominated by usage rates. There is no ranking of plans that holds for both households, which is one more way a state average misleads: it silently assumes a usage level that is not yours.

No state has a gas price cap

One structural fact applies in every state and territory covered here, and readers deserve to know it plainly: there is no default-offer price cap for residential gas anywhere in Australia.

Electricity has regulated safety nets: the Australian Energy Regulator's Default Market Offer in several states, and the Victorian Default Offer set by Victoria's Essential Services Commission. They give disengaged electricity customers a capped fallback and give everyone a reference price to compare against.

Gas has no equivalent in any state. No regulated benchmark on your bill, no capped fallback if you never engage. The spread between a sharp plan and a drifted one is bounded only by competition, and a customer who stays put has no regulated floor underneath them. Whatever protection exists in residential gas pricing comes from customers comparing, which is not an editorial flourish; it is the actual design of the market, and switching gas retailers covers what acting on it involves.

State averages are trivia. Your bill is data.

Everything above explains why the state-by-state table you came looking for cannot answer the question you actually have. Averages blend distribution zones priced differently, tariff shapes that reward different households differently, and usage patterns that are not yours. The only comparison that means anything runs your usage, from your own bill, in your zone, against every plan actually available at your address.

That is the comparison Fix Your Bill runs: your real bill against every retailer in your state in the public Consumer Data Right data, not a partner shortlist. Skip the trivia. Run the real thing.