Vrancea County's area is of 4,857 km².
A curvedly shaped mountainous area, known in Romanian as Carpaţii de Curbură, lies in the western part of the county, at the Southern end of Eastern Carpathians, with heights over 1400 m. To the East, the heights decrease into hilly areas and the lower valley of Siret River.
The area is a seismically active one, with yearly earthquakes whose epicenter depths are between 80 and 160 km.
The county is famous for its wines, being the biggest wine producer in Romania. Over 11% of the county surface is covered with vines. The county's renown wine regions are Panciu - 8100 ha, Odobeşti - 7000 ha, and Coteşti.
County's main industries: