瓦斯盧伊縣
Fălciu County consisted of the western part of the current Vaslui County and the extreme southeast of the current Iaşi County, and a small eastern part of the county now lies in Moldova. It bordered Vaslui County to the west, Iași county to the north, Lăpușna County and Cahul County to the east, and Tutova County to the south.