| Type: | town |
| Port Arthur | |
| State: | SA |
| Coordinates: | -34.149°N 138.0637°W |
| Established: | 1999[1] |
| Postcode: | 5552[2] |
| Timezone: | ACST |
| Utc: | +9:30 |
| Timezone-Dst: | ACST |
| Utc-Dst: | +10:30 |
| Dist1: | 105 |
| Dir1: | NW |
| Location1: | Adelaide |
| Dist2: | 9 |
| Dir2: | NW |
| Location2: | Port Wakefield |
| Lga: | Yorke Peninsula Council |
| Region: | Yorke and Mid North[3] |
| County: | Daly |
| Stategov: | Narungga[4] |
| Fedgov: | Grey |
| Near-S: | Gulf St Vincent |
| Near-W: | Kainton Kulpara |
| Near-Nw: | Kulpara |
| Footnotes: | Adjoining localities |
Port Arthur is a locality in the Australian state of South Australia located on the Yorke Peninsula at the northern end of Gulf St Vincent about 105km (65miles) north west of the state capital of Adelaide and about 9km (06miles) north of the town of Port Wakefield.[2]
Its boundaries were created in May 1999 for the "long established name."[1] Port Arthur was used from 1861 to 1863 as a minor port for an enterprise moving passengers between Port Adelaide and the towns of Moonta and Wallaroo using the steam tug, Eleanor, and coach services operated by both "Mr Opie's Horse Conveyances" and W. Rounsevell.
Port Arthur is located within the federal Division of Grey, the state electoral district of Narungga, and the local government area of the Yorke Peninsula Council.[5] [6] [7] [4]