Athens population peaked at around two hundred thirty thousand in forty three hundred BC

Evidence

Athens at its maximum, about 430 B.C., is estimated to have numbered about 230,000 (including slaves), and the surrounding territory of rural Attica probably contained a rather smaller population. — Bertrand Russell, History of Western Philosophy, 334

Categorization

• corroborated: 2 independent passages support this claim — Bertrand Russell, History of Western Philosophy, 334