The Main West railway line extension between Dubbo and Nevertire, which included Narromine, was officially opened on 20 October 1882. The town was established after the railway opened, the first structures in the town being the railway platforms. The township was gazetted in 1883, and the railway station opened on 1 May 1883. It was renamed to its current spelling in October 1889. "Narramine" Post Office opened on 20 October 1882 and was renamed "Narromine" in November 1900. The village of Narramine was proclaimed in July 1883, and numerous buildings followed, including the police station built in 1890, the store (1890) and the Royal Hotel (1890). A bridge over the Macquarie River was built in 1897. After federation, the population of Narromine was 2,228 in the 1911 census, and in 1947 the population was 1,816.