The Largest States in the World in AD 400
On the world border map for AD 400, the largest state was Ruanruan, with about 2.93 million km² — some 2% of the world's land. It was followed by Jin and Gupta Empire.
The 20 largest states in AD 400
| Rank | State | Area | Share of world land | Rank in AD 300 |
|---|---|---|---|---|
| 1 | Ruanruan | 2.93 million km² | 2.0% | new |
| 2 | Jin | 2.87 million km² | 1.9% | 1 |
| 3 | Gupta Empire | 2.48 million km² | 1.7% | 4 |
| 4 | Western Roman Empire | 2.33 million km² | 1.6% | new |
| 5 | Persia | 2.28 million km² | 1.5% | new |
| 6 | Eastern Roman Empire | 1.83 million km² | 1.2% | new |
| 7 | Suren Kingdom | 1.09 million km² | 0.7% | 5 |
| 8 | Sixteen Kingdoms | 1.05 million km² | 0.7% | new |
| 9 | Hunnic Empire | 870,000 km² | 0.6% | new |
| 10 | Hopewell Culture | 780,000 km² | 0.5% | 6 |
| 11 | Meroe | 600,000 km² | 0.4% | 8 |
| 12 | Satavahanihara | 490,000 km² | 0.3% | 7 |
| 13 | Himyarite Kingdom | 470,000 km² | 0.3% | 9 |
| 14 | Maya chiefdoms and states | 360,000 km² | 0.2% | 11 |
| 15 | Empire of Ghana | 340,000 km² | 0.2% | 12 |
| 16 | Caucasian Alans | 270,000 km² | 0.2% | new |
| 17 | Hindu kingdoms | 210,000 km² | 0.1% | 15 |
| 18 | Northern Liang | 160,000 km² | 0.1% | new |
| 19 | Koguryo | 130,000 km² | 0.1% | 16 |
| 20 | Hadramaut | 110,000 km² | 0.1% | 17 |
Areas are measured from the border polygons of the map and are approximate; claimed areas, tributaries and unorganised land are not included.
Largest states by region
Europe
| Rank | State | Area |
|---|---|---|
| 1 | Western Roman Empire | 2.33 million km² |
| 2 | Persia | 2.28 million km² |
| 3 | Eastern Roman Empire | 1.83 million km² |
| 4 | Hunnic Empire | 870,000 km² |
| 5 | Caucasian Alans | 270,000 km² |
Asia
| Rank | State | Area |
|---|---|---|
| 1 | Ruanruan | 2.93 million km² |
| 2 | Jin | 2.87 million km² |
| 3 | Gupta Empire | 2.48 million km² |
| 4 | Suren Kingdom | 1.09 million km² |
| 5 | Sixteen Kingdoms | 1.05 million km² |
Africa
| Rank | State | Area |
|---|---|---|
| 1 | Meroe | 600,000 km² |
| 2 | Himyarite Kingdom | 470,000 km² |
| 3 | Empire of Ghana | 340,000 km² |
| 4 | Hadramaut | 110,000 km² |
| 5 | Axum | 90,000 km² |
Americas
| Rank | State | Area |
|---|---|---|
| 1 | Hopewell Culture | 780,000 km² |
| 2 | Maya chiefdoms and states | 360,000 km² |
| 3 | Moche | 100,000 km² |
| 4 | Monte Albán | 60,000 km² |
| 5 | Nazca | 40,000 km² |
Questions
What was the largest country in the world in AD 400?
Ruanruan, with about 2.93 million km², on the border map for AD 400.
What were the five largest states in AD 400?
1. Ruanruan (2.93 million km²); 2. Jin (2.87 million km²); 3. Gupta Empire (2.48 million km²); 4. Western Roman Empire (2.33 million km²); 5. Persia (2.28 million km²).
What was the largest state in Europe in AD 400?
Western Roman Empire, with about 2.33 million km².
What was the largest state in Asia in AD 400?
Ruanruan, with about 2.93 million km².
What was the largest state in Africa in AD 400?
Meroe, with about 600,000 km².
← Largest states in AD 300 · Largest states in AD 500 → · Largest empires in history · The world in AD 400
Last updated 10 November 2026. Sources: border data from historical-basemaps, land and rivers from Natural Earth; texts written for Chronica Maps from standard reference works. How we make the maps.