Which capital of Egypt lies on the Nile delta's southern edge? The answer is Cairo.
Cairo is Egypt’s capital and largest city, located on the Nile near the southern edge of the river’s broad delta. North of the city, the Nile divides into distributaries and spreads across the fertile delta before reaching the Mediterranean Sea. This position helped make Cairo a major crossroads between Upper and Lower Egypt.
Modern Cairo was founded in 969 AD by the Fatimid dynasty, although older settlements in the area—especially Fustat, founded in 641–642—predate it. Over centuries, Cairo grew around the Nile, Islamic monuments, government institutions, and trade routes. Historic Cairo is recognized as a UNESCO World Heritage Site.
The wording can cause a geographic mix-up: Cairo is near the delta’s southern apex, not on the Mediterranean coast and not at the delta’s northern edge. It is also distinct from Giza, the separate city on the Nile’s western bank, even though the two form part of the same vast metropolitan area.
The Nile remains the defining geographic feature of the capital, supporting the dense urban corridor in an otherwise arid region.