Suffolk Bancorp is a bank holding company. Through its Suffolk County National Bank of Riverhead subsidiary, Co. provides domestic commercial and retail banking services. The Bank makes commercial real estate floating and fixed rate loans, multifamily and mixed use commercial loans, commercial and industrial loans to manufacturers, wholesalers, distributors, developers/contractors, retailers and agricultural loans. The Bank also makes loans secured by residential mortgages, and both floating and fixed rate second mortgage loans within plans for repayment. Real estate construction loans are also provided. As of Dec 31 2015, Co. had total assets of $2.17 billion and deposits of $1.78 billion.