Bir Mcherga Municipality was established by Decree No. 566 of 1985, dated April 6, 1985.

It is located north of the city of Zaghouan, the governorate capital. It covers an area of 31,146 hectares and had a population of 14,604 according to the latest available 2014 census data.

Despite being relatively newly established, Bir Mcherga is considered the third most developed area in Zaghouan Governorate in terms of industrial growth. The municipality hosts 28 industrial facilities that employ a significant share of the workforce. The region is also known for its agricultural character, especially irrigated farming, supported by water from the Bir Mcherga dam.