Zarach, Iran

Zarch  is a city in the Central District of Zarach County, Yazd province, Iran, serving as capital of both the county and the district.

At the 2006 census, its population was 9,979 in 2,447 households, when it was in the former Zarach District of Yazd County. The following census in 2011 counted 10,753 people in 2,858 households. The latest census in 2016 showed a population of 11,691 people in 3,388 households.

In February 2023, the district was separated from the county in the establishment of Zarch County, which was divided into two districts and three rural districts, with Zarch as its capital and only city.

The city is 5 km west of the city of Yazd. Zarach has the longest and oldest kariz in the world, with a length of 71 km and is over 3,000 years of age.