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Members 1st Credit Union - Contact Us

Our vision at Members 1st Credit Union is to be our members’ most trusted financial partner.

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Mattis Office

4702 Mattis Road, St. Louis, MO 63128-2822
314-487-5628 or toll-free 877-487-5628
314-845-0974 or 314-845-0550

Mattis Hours of Operation:
Days: Hours:
Monday & Friday 9 a.m. – 6 p.m.
Tuesday – Thursday 9 a.m. – 4:30 p.m.
Fourth Wednesday of the Month 10 a.m. – 4:30 p.m.

Festus Office

1200 E. Gannon Dr., Festus, MO 63028-2614
636-931-7144 or 636-937-7144

Festus Hours of Operation:
Days: Hours:
Monday – Wednesday 8:30 a.m. – 5 p.m.
Thursday 8:30 a.m. – 5:30 p.m.
Fourth Thursday of the Month 10 a.m. – 5:30 p.m.
Friday 8:30 a.m. – 6 p.m.
Saturday 8:30 a.m. – noon


CO-OP ATMs & Shared Branches

Members 1st Credit Union is part of an ATM and shared branch network that gives you access to nearly 30,000 free ATMs and more than 5,300 credit union offices. Find an ATM or branch near where you live, work or play!

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