The territory was transferred to Romania from Hungary as successor state to Austria-Hungary in 1920 under the Treaty of Trianon.

In 1924, Romanian authorities renamed a number of populated places: Copăceni (previous name: Copand), Săndulești (Sând), Petrești (Petrid), Deleni (Indol), Tureni (Tur), Borzești (Berchiș), Comșești (Comițig), Mărtinești (Sânmărtinul Deșert), Vâlcele (Banabic), Pruniș (Silivaș), Cheia (Mischiu), Mihai Viteazu (Sânmihaiu), Cornești (Sinfalău), Moldovenești (Varfalău), Plăiești (Chiend), Pietroasa (Ceagz), Călărași (Hărastăș), Stejeriș (Cârcedea), Măhăceni (Măhaci), Dumbrava (Dumbrău), Unirea (Vințu de Sus), Războieni (Cucerdea), Iacobeni (Sâniacob), Viișoara (Agârbiciu), Triteni (Tritiu), Valea Largă (Țicud), Bărboși (Săcal), Luncani (Grind), Hădăreni (Hădărău), Chețani (Cheța), Gligorești (Sânmărtinul Sărat), Gura Arieșului (Vaidasig), Oprișani (Cristiș), Podeni (Hidiș) After the administrative unification law in 1925, the county was renamed to Turda County and its territory was reorganized.

The city also had six religious communities (Greek Catholic, Romanian Orthodox, Reformed/Calvinist, Unitarian, Evangelical/Lutheran, and Jewish).

The trade was active, generally with products of the county, the center of sales being the city of Turda.

The following factories were operating in that city: one of carbonated water, one of beer, one cement, two distilleries, one of furniture, one of leather, one of chemicals, one of soap, one of glass, one of lime, and a foundry.

By mother tongue among the urban population, Hungarian predominated (53.1%), followed by Romanian (39.0%), German (2.7%), Yiddish (2.2%), Romany (1.2%), and others.