State Investors Bancorp, Inc., is a registered financial holding company for State-Investors Bank. The company owns all of the outstanding common stock of State-Investors Bank, which is a federally chartered savings bank headquartered in Metairie, Louisiana. The company provides a range of loan services using the deposits attracted from general public through the operation of the bank. As of December 31, 2012, the Company had $245.955 million in total assets, $43.502 million in total stockholders' equity and $161.163 million in deposits. In November, 2013, the company reported its latest net income for the quarter ended September 30, 2013 of $127,000, a decrease of $81,000 compared to that of $208,000 declared for the quarter ended September 30, 2012, which resulted from a decrease in total interest income, and an increase of the provision for loan losses.

State-Investors Bank was founded on September 14, 1894.

In February 2011, State Investors Bancorp was founded to own all of the outstanding common stock of State-Investors Bank after the conversion of the bank from the mutual to the stock form of ownership.