At the turn of the 19th century, the economy revived. Manufacturers producing English porcelain, hats, cloth and more, appeared in the town. The population was constantly rising, especially owing to the influx of people from the villages.
At the beginning of the 19th century, a bishopric was established in Kosice; the parish church of St.Elizabeth became a cathedral church in 1804.
Revival of the economy of the town was manifested in the town's architecture. The Reduta cultural center, a ballroom, theater, large burghers' and patrician houses, ornate aristocratic palaces, the Evangelical church, and a number of large barracks were built.
The arrival of the railway, which connected Kosice with Miskolcz and Budapest in 1860, and Bohumin in 1870, provided a mighty new impulse for the economic boom of the town. Construction of a railway station east of the town center was also finished that year. On the site between the railway station and the city a large park was planted and a new street network was developed. The process of urbanization of the town was influenced by the traffic patterns of Vienna and Budapest, creating a system of circular avenues which occupied the place of the demolished town walls. With the construction of new rental houses, Kosice attained a metropolitan character. The river terraces westwards above the city were built up with rustic country houses grouped around small squares. A synagogue was built amidst a row of houses situated along a southern axis next to the city in the year 1866; 20 years later a Greek-Catholic church was built in Cyrilometodska Street.
