Lavasanat District
Lavasanat District is a district in Shemiranat County, Tehran Province, Iran. At the 2006 census, its population was 22,289, in 6,615 families. The administrative center of the district is Lavasan. The District has two rural districts : Lavasan-e Bozorg Rural District and Lavasan-e Kuchak Rural District.
During the Qajar era and early 20th century Lavasanat was the transit way between northern slopes of Elburz and Tehran with Great Lavasan, Ammameh, Afjeh and Najarkala known as the most famous towns of Lavasanat.
The natives of the Lavasanat district are of Caspian origin. The local dialect or "vernacular" spoken by its natives is a mix of Persian and Caspian. In the village of Ira, this vernacular approaches Mazandarani.
