[2] The capital of Pella is Edessa with a population of 19,036 inhabitants according to the census of 2021, while the largest town is Giannitsa.

Other towns include Aridaia, Skydra, Arnissa, Exaplatanos and Krya Vrysi.

Other natural features of the area include Lakes Vegoritida and Agra, and Rivers Loudias and Edessian.

Pella's southernmost portion is flat and in ancient times, it was a gulf connected to the Aegean Sea.

In antiquity, the area around the modern Pella regional unit was part of the ancient Greek Kingdom of Macedon.