Rud Ab

Rud Ab is a city in, and the capital of, Rud Ab District of Sabzevar County, Razavi Khorasan province, Iran. It also serves as the administrative center for Frughan Rural District.

Population
At the time of the 2006 National Census, the city's population was 3,470 in 883 households. The following census in 2011 counted 4,042 people in 1,229 households. The 2016 census measured the population of the city as 4,028 people in 1,254 households.