Sonamukhi is the birthplace of Haranath and KusumKumari Devi. They are the reincarnation of Gouranga also known as Chaitanya Mahaprabhu. This place is considered equal importance among devotees as that of places like Vrindavan and Nabadwip respective birthplace of Krishna and Chaitanya Mahaprabhu.
Besides the temple of Kusumharanath there other temples such as Manohar Das Thakur etc. Adjacent to the temple of Kusumharanath there is Ananta Kunda which water is sacred.
As of 2001[update] India census, Sonamukhi had a population of 27,348. Males constitute 51% of the population and females 49%. Sonamukhi has an average literacy rate of 71%, higher than the national average of 59.5%: male literacy is 78%, and female literacy is 64%. In Sonamukhi, 10% of the population is under 6 years of age.
In September 2005, South Eastern Railway began passenger services on the 41 km (25 mi) Bankura-Sonamukhi broad gauge section, being the first phase of the Bankura-Damodar River Railway project. BDR project reduced the distance from Bankura to Howrah via Masagram, providing alternate connectivity to Howrah through Eastern Railway via Howrah–Bardhaman chord. Work up to Masagram is completed and inaugurated on 16 April 2013 . Road transport includes bus service on Bankura - Bardhaman State Highway.