First Federal Share: Lender-Home LoansBanks & Commercial LendersMortgages & Contracts First Federal Visit Website Request Info 701 S Allen Street Suite 105 Meridian, ID 83642 2089852555 About Map About First Fed is more than 100 years old and serves as Idaho's only mutual bank. We have 11 branches throughout Southern Idaho. We have a Lending Office in Meridian that specializes in all types of loans. What's Nearby? Distance: 5 10 15 20 25 50 mi.