Claim: Shirin Su also known as Shīrūnsū, is a city in Kabudarahang county, province of Hamadan, Iran with a total population of 2,280, in 507 families as of 2006.
Evidence: Shirin Su (Persian: شيرين سو‎, Azerbaijani: Şirin Su, also Romanized as Shīrīn Sū and Shīrīn Soo; also known as Shīrūnsū) is a city and capital of Shirin Su District, in Kabudarahang County, Hamadan Province, Iran. At the 2006 census, its population was 2,280, in 507 families. 
Shirin Su Kabudarahang Hamadan Iran At the 2006 census, its population was 2,280, in 507 families.