They are both situated on the Prut River, between Stânca in Botoșani County and Costești, Rîșcani.

It was bordered to the west by the counties of Suceava and Baia, to the north by Dorohoi, to the east by Bălți, and to the south with Iași.

From the religious point of view, 89.4% were Eastern Orthodox, 9.2% Jewish, 0.7% Roman Catholic, as well as other minorities.

In 1930, the county's urban population was 50,320 inhabitants, comprising ethnically 64.9% Romanians, 31.3% Jews, 0.9% Germans, as well as other minorities.

From the religious point of view, the urban population was composed of Eastern Orthodox (64.5%), Jewish (32.3%), Roman Catholic (2.1%), as well as other minorities.