FirstBank Share: Banks & Credit Unions FirstBank Visit Website Request Info 550 S Wadsworth Blvd Lakewood, CO 80226 (303) 558-7923 Hours: Monday through Friday 9am-6pm Saturday 9am-12pm About Map About FirstBank is a Colorado-based and privately held bank and financial services company that owns over 115 FirstBank locations in Colorado, Arizona, and California What's Nearby? Distance: 5 10 15 20 25 50 mi.