Jessore (Bengali: যশোর, romanized: jôshor, [dʒɔʃor]), officially Jashore,[a] is a city of Jessore District in Khulna Division. It lies in southwestern Bangladesh. It is home to the first flight training school of the Bangladeshi Air Force, established in 1971.[2] It is the administrative centre (headquarter) of the eponymous district and the third largest and second developed city in Khulna Division. It is one of the industrious and developed cities in Bangladesh. Jessore city consists of 9 wards and 73 mahalls. Jashore municipality was established in 1864.[3] The area of the town is 21.15 km2. It has a population of about 298,000 according to the record of Jessore municipality. Jessore also has a domestic airport named as Jessore Airport. The present-day city of Jashore was originally known as Kasba. The current name was originally acquired from the name of the surrounding pargana and zamindari estate of Jashore, or Jesar, when Kasba became its capital. The district's name was also applied to its two previous capitals, which are now known as Ishwaripur and Murali, respectively, so early mentions of jashore are not referring to the modern town.[4]: 45