River Valley Credit Union Share: Banks & Credit Unions Visit Website Request Info 7177 Headley St SE Ada, MI 49301 (616) 745-3011 Facebook Hours: Monday-Friday 9 AM to 5 PM About Map About A community-focused credit union that has been an Ada staple for more than 50 years. What's Nearby? Distance: 5 10 15 20 25 50 mi.