The county is situated in the Bărăgan Plain, all the area is flat crossed by small rivers with small but deep valleys.
Its east border is on Danube and the Ialomița River crosses the county from West to East about the middle. The Danube is split around the Ialomița Pond - the Old Danube branch and the Borcea branch.
Until 1940 (in the West part) and 1967 (in the East part) the county/plain was home of the great bustard (dropie in Romanian), with large populations of this bird. The birds disappeared because of the massive village buildout and hunting them for food.