In 1702, Semeljci had 14 inhabited houses. By 1758, Semeljci had grown to include 95 listed houses and was one of the largest villages that made up the Diocesan estate. The first church was built in 1720. The increased number of people was the main reason that the village became the seat of the parish by 1754, and the church was enlarged. By the second half of the 19th century, Germans and Hungarians moved into Semeljci, making it a large and ethnically diverse village.