Does the Tropic of Capricorn Pass Through South Australia? True or False

False. The Tropic of Capricorn (23°26′S) does not pass through South Australia.

Where It Actually Crosses Australia

The Tropic of Capricorn traverses the northern portions of three states/territories:

  • Western Australia — crosses near Newman, through the Pilbara
  • Northern Territory — passes north of Alice Springs, through the MacDonnell Ranges
  • Queensland — crosses near Longreach, Rockhampton (just north), and the Capricorn Coast

South Australia's Position

South Australia lies entirely south of the Tropic of Capricorn. Its northern border is the 26th parallel south—roughly 300 km (185 mi) south of the Tropic. The entire state is in the temperate zone, not the tropics.

Why the Confusion?

  • People conflate "central Australia" with "tropical Australia."
  • The Northern Territory and South Australia share a long border; the Tropic crosses the NT but stops at the SA border.
  • Tourist markers (e.g., the "Tropic of Capricorn" sign on the Stuart Highway) are in the NT, not SA.

Quick Latitude Check

LocationLatitudeRelation to Tropic (23.43°S)
Adelaide (SA capital)34.9°S~1,300 km south
Port Augusta (SA north)32.5°S~1,000 km south
Alice Springs (NT)23.7°S~30 km south
Longreach (QLD)23.4°SOn the Tropic

Verdict: The statement is false. South Australia is entirely outside the tropics.

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