It has an area , as of 2009 , of 2.41 square kilometers ( 0.93 sq mi ) .
The municipality consists of the village of Boniswil and the hamlets of Alliswil , which became part of Boniswil in 1898 .
Boniswil has an area , as of 2009 , of 2.41 square kilometers ( 0.93 sq mi ) .
The municipality consists of the village of Boniswil and the hamlets of Alliswil , which became part of Boniswil in 1898 .