Marchena is a municipality in Spain, in the province of Seville, in Andalusia. On 1 January 2025 it had 19,405 inhabitants according to the INE municipal register (padrón), over an area of about 374.6 km².
Population density is about 52 per km²: a partly rural municipality, with a main town and scattered villages or developments. Of the 64 municipalities in the province of Seville with at least 5,000 inhabitants, it is number 20 by population.
As the crow flies it lies about 53 km east of Seville, the provincial capital. The nearest major city is Seville, about 55 km away.
Below you will find a map of neighbouring municipalities, the weather, places to stay in the area and a link to all the municipalities in the province of Seville.