Home » Exhibitor Listings » Banking » Farmers State Bank (FSB) Farmers State Bank (FSB) BankingMortgages FSB is Linn Countys largest family-owned financial institution. FSB has seven locations, including its main facility in Marion and offices at Collins 1240 8th Avenue Marion, IA 52302 gailloskill@fsbmail.net (319) 730-7016 https://www.myfsbonline.com/