Land Border Length by Country (Oceania)
Papua New Guinea has the longest land borders in Oceania — 820 km, ahead of Australia (13 km). All 2 countries ranked with the latest available data.
Top 2 Countries
| # | Country | Share | Land Borders |
|---|---|---|---|
| 1 | 🇵🇬 Papua New Guinea | 98.4% | 820 km |
| 2 | 🇦🇺 Australia | 1.6% | 13 km |
Statistic
About this Ranking
Total land border length shapes a country’s defense requirements and military posture. Nations with extensive land borders must spread forces across multiple frontiers, investing heavily in border surveillance, fortifications, and rapid deployment capabilities. Longer borders generally demand larger ground forces and more complex logistics.
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