Kropia (Greek: Κρωπία) is a municipality in East Attica, Greece and has a land area of 102.0 km2.

[3][4] The soil is very fertile (something common in the Mediterranean) and many crops are grown on it, most importantly vineyards, olives, figs, pistachios, honey and vegetables.

The seat of the municipality is in the town of Koropi (pop.

In descending order of population, its other villages are Kítsi (pop.

Olympic Air has its head office in Kropia.