Whyalla
| Whyalla South Australia | |||||||||
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View of the city from Hummock Hill | |||||||||
| Coordinates | 33°02′0″S 137°34′0″E / 33.03333°S 137.56667°E | ||||||||
| Population | 20,880 (UCL 2021) | ||||||||
| Established | 1920 | ||||||||
| Postcode(s) | 5600 | ||||||||
| Time zone | ACST (UTC+9:30) | ||||||||
| • Summer (DST) | ACDT (UTC+10:30) | ||||||||
| Location | 395 km (245 mi) from Adelaide | ||||||||
| LGA(s) | City of Whyalla | ||||||||
| State electorate(s) | Giles | ||||||||
| Federal division(s) | Grey | ||||||||
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Whyalla /waɪˈælə/ is a city in South Australia. It was founded as Hummock's Hill, and was known by that name until 1916. It is the fourth most populous city in the Australian state of South Australia after Adelaide, Mount Gambier, and Gawler, and along with Port Pirie and Port Augusta is one of the three towns to make up the "Iron Triangle". It is a seaport located on the east coast of the Eyre Peninsula and is known as the "Steel City" due to its integrated steelworks and shipbuilding heritage. The Whyalla Steelworks is the major employer in the town, and has in February 2025 been put into voluntary administration by the Government of South Australia. The port of Whyalla has been exporting iron ore since 1903.