Land Border Length by Country (Africa)
The Congo Democratic Republic has the longest land borders in Africa — 10,730 km, ahead of Mali (7,243 km) and Sudan (6,764 km). All 48 countries ranked with the latest available data.
Top 15 Countries
| # | Country | Share | Land Borders |
|---|---|---|---|
| 1 | 🇨🇩 Congo Democratic Republic | 6.5% | 10,730 km |
| 2 | 🇲🇱 Mali | 4.4% | 7,243 km |
| 3 | 🇸🇩 Sudan | 4.1% | 6,764 km |
| 4 | 🇩🇿 Algeria | 3.9% | 6,470 km |
| 5 | 🇹🇩 Chad | 3.6% | 5,968 km |
| 6 | 🇳🇪 Niger | 3.4% | 5,697 km |
| 7 | 🇿🇲 Zambia | 3.4% | 5,667 km |
| 8 | 🇨🇬 Congo | 3.3% | 5,504 km |
| 9 | 🇪🇹 Ethiopia | 3.2% | 5,328 km |
| 10 | 🇨🇫 Central African Republic | 3.2% | 5,213 km |
| 11 | 🇦🇴 Angola | 3.1% | 5,198 km |
| 12 | 🇲🇷 Mauritania | 3.1% | 5,074 km |
| 13 | 🇿🇦 South Africa | 2.9% | 4,862 km |
| 14 | 🇸🇸 South Sudan | 2.9% | 4,797 km |
| 15 | 🇨🇲 Cameroon | 2.8% | 4,591 km |
Top 15 of 48 ranked countries
Concentration
🇨🇩 6.5%🇲🇱 4.4%🇸🇩 4.1%🇩🇿 3.9%🇹🇩 3.6%Rest 77.5%
The top 10 countries hold 39.1% of the regional total
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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