Colocation in Australia: City-by-City Buyer's Guide (Sydney to Hobart)

Why city choice matters

For a first-time colocation buyer, choosing a city is usually the first decision and often the most important. It shapes three things.

Latency. The physical distance between your servers and your users affects how responsive your applications feel. If most of your customers are in Western Australia, hosting in Sydney adds a cross-continent round trip to every request.

Power and choice. Bigger markets have more operators, more competition and more facilities able to support higher power densities. Smaller markets may have only a few options, which limits negotiation and redundancy.

Disaster recovery. If you need a second site, it should be far enough away that a single event, such as a regional power or network outage, is unlikely to affect both. City pairs like Sydney and Melbourne are common for that reason.

The coverage page (/coverage) summarises each city, and the DChunt map (/map) shows every facility we track.

Facility counts by city

The DChunt map currently lists 328 facility records from 102 operators across 33 locations. Grouped by city, the largest are:

• Sydney: 105 • Melbourne: 64 • Perth: 30 • Brisbane: 26 • Adelaide: 22 • Canberra: 21 • Darwin: 12 • Newcastle: 6 • Hobart: 5 • Launceston: 5

The remaining records are spread across regional locations such as Ballarat, the Gold Coast, the Sunshine Coast, Albury, Geelong, Townsville and others, plus one site on Christmas Island.

These counts include campuses, individual buildings and some developments, and they include facilities that do not sell retail colocation, such as cloud providers' own sites. They are best read as a measure of how much infrastructure is in each place, not as a count of options open to a small buyer. Facility lists change often, so always confirm details with operators.

Sydney and Melbourne: the primary markets

Sydney is Australia's largest data centre market by a clear margin. It has the densest carrier ecosystem, the most cloud on-ramps and the widest range of operators, from interconnection-focused buildings in the inner city to very large campuses in Western Sydney. If your users are national or you rely heavily on public cloud, Sydney is usually where to start.

Melbourne is the second-largest market and a natural partner to Sydney. It has a strong mix of operators and good connectivity, and it is a popular choice both as a primary site for Victorian businesses and as a disaster recovery location for Sydney deployments. We cover this in more detail in our Melbourne guide on the learning centre (/learn).

For many businesses, the question is not Sydney or Melbourne, but which one is primary and whether the other is needed as a second site.

Secondary capital cities

Brisbane serves Queensland's large and growing population. It has a solid set of operators and is a sensible primary site if most of your users are in Queensland or northern New South Wales.

Perth matters because of distance. Western Australian users are a long way from the east coast, so a Perth presence can noticeably improve responsiveness for them. Perth is also an important landing point for subsea cables towards Asia.

Adelaide has a smaller market with a useful mix of operators, and it can work well for South Australian businesses or as a lower-key disaster recovery site.

Canberra is shaped by government. Several facilities there focus on government and defence workloads, and some hold government hosting certifications. If you handle government data, Canberra deserves a look, though certified facilities also exist in other cities.

Darwin and Hobart are small markets. Darwin has strategic value as a northern gateway with links towards Asia. Tasmania, including Hobart and Launceston, offers a cool climate and a largely renewable electricity grid, but fewer providers and more reliance on links to the mainland.

Regional locations

A growing number of facilities sit in regional centres such as Newcastle, Ballarat, Albury, Dubbo, Wagga Wagga, Tamworth, Toowoomba and Townsville. These edge and regional sites can suit businesses with users or operations nearby, or those wanting local resilience. Choice is usually limited to one or two operators per town, so check connectivity and support arrangements carefully. Our learning centre (/learn) has more on edge and regional data centres.

A city decision checklist

Work through these questions before you contact providers:

1. Where are your users? Map your main user bases and choose the city that serves most of them with acceptable latency. 2. Which clouds and partners do you connect to? Check which cities have on-ramps or carriers you need. 3. Do you need a second site? If so, choose a city pair far enough apart to avoid shared risk. 4. What are your compliance needs? Government or regulated data may narrow you to certified facilities. 5. How much choice do you need? Larger markets give more competition and fallback options. 6. Who will visit? Consider where your team or IT partner is based for installs and support. 7. What is your budget? Pricing varies by city and facility, so get written quotes for each option you are seriously considering.

Then use the provider directory (/providers) to see which operators cover the cities on your list.

Ready to narrow it down?

DChunt is an independent advisory site, not a reseller. Our free assessment (/assessment) asks about your users, workloads, compliance and budget, then ranks Australian cities and operators against them. It is the quickest way to turn this guide into a shortlist.