Sihlea is a commune located in Vrancea County, Romania. It is composed of four villages: Bogza, CÃÂiata, Sihlea, and Voetin.
The commune is located in the southern extremity of the county, from the county capital, FocÃÂani. Sihlea is situated on the border with BuzÃÂu County, only from Râmnicu SÃÂrat. It lies on the left bank of the river CoÃÂatcu and on both banks of its tributary, the Slimnic.
Sihlea is crossed by the county road DJ202E, which connects it to the west with ObrejiÃÂa (where it intersects with national road DN2) and further to TâmboeÃÂti, and to the south to Râmnicelu. In the north, it is also crossed by the national road , which connects it to the east with TÃÂtÃÂranu (where it ends in ) and to the west with DumbrÃÂveni (where it intersects with the same DN2), BordeÃÂti, DumitreÃÂti, Chiojdeni, and Jitia. The partly built A7 motorway, which starts in PloieÃÂti in the direction of BuzÃÂu, will enter Vrancea County in Sihlia, continuing north towards FocÃÂani and ending in Siret.
Train stations in Voetin and Sihlea villages serve the CFR Main Line 500, which connects Bucharest with the Ukrainian border near Chernivtsi.
According to the 2011 census, the commune had a population of 5,039, of which 90% were ethnic Romanians and 5.9% were Roma. Ar the 2021 census, Sihlea had a population of 4,989, of which 85.27% were Romanians and 8.34% were Roma.