Babol County
Babol County is the most populous county in Mazandaran province and the second most populous county in northern Iran. The capital of the county is the city of Babol. Babol County consists of six districts, seven cities, and nearly 700 villages.
The elevation of the city of Babol is 2 meters below sea level, making it the "lowest" city in Mazandaran province. The elevation in the county, from the north to 10 kilometers south, is below sea level. The city of Babol is divided into two urban areas. The population of Babol in 2016 was 250,217, and that of Babol County 531,930.