In 1927, Gerse was connected to Hungary's telephone network. Gerse received a new school building in 1930; this was the so-called "multi-storied school," which today houses the town's notary and local government offices. The Minister of the Interior suggested joining Gerse and Karátföld in 1937, but the citizens rejected the proposal and the idea was dropped. In 1938, regular medical services became available. The 1950s and 60s were decades of major changes for the two villages. The official joining of Gerse and Karátföld took place October 1, 1950; at this time the united town received the name Gersekarát. In 1951, the town began to be electrified. In 1952 the current school building was constructed. In 1953, the town council formalized the streets' names, which are still in use today. From 1957 the town received regular bus services, connecting it to other towns and villages. In 1963 the new Community Center () was constructed. In 1964, the local water tower was inaugurated. In 1966 Gersekarát joined with Sárfimizdó to form one common town council, with Telekes joining also four years later. The kindergarten was built in 1969. In 2001, a 33-hectare fishing lake was created on the town's southern border by damming the Sárvíz Brook. One attraction of Gersekarát is Lake Fias (), a small lake at the northern part of the village. Several species of protected plants can be found growing on the banks of the lake. At the southern end of the village lies the man-made 33.3 hectare lake. Part of the lake is reserved for fishing; the other part can be used for swimming, sunbathing, jet-skiing, and other water sports. Accommodation can be found either in campsites next to the lake or in rental houses and rooms in the village itself.