Sedeh Lenjan (Persian: سده لنجان)[a] is a city in the Central District of Lenjan County, Isfahan province, Iran.

[4] At the time of the 2006 National Census, the city's population was 17,335 in 4,167 households.

[5] The following census in 2011 counted 18,654 people in 5,149 households.

[6] The 2016 census measured the population of the city as 19,101 people in 5,665 households.

This Lenjan County location article is a stub.