After another decline in the first half of the 16th century, the town experienced significant growth, largely due to an influx of Croatian settlers in 1540. Vištuk is situated at the merger of three creeks and once had several water reservoirs, the largest of which still exists today. By the end of the 16th Century, the village was one of the largest in the Červený Kameň county. In 1573 the town built its Roman Catholic church of Holy Trinity, in the place of an older, Gothic church. Roughly at the same time, a smaller church was built, later rebuilt into a chapel.