Tidemark Federal Credit Union is here to serve, with branches conveniently located in Delaware and surcharge-free ATM access at our branches. We'll help you take care of your financial tasks quickly.

Tidemark Corporate Office
(Send Corporate Mail Here)

1941 Bridgeville Highway
PO Box 1800
Seaford, DE 19973


Member Service Center
(Send Member Mail Here -Payments ect.)

216 Washington Street
PO Box 1630
Millsboro, DE 19966


Branches Are Open
9:00 AM - 5:00 PM Monday Through Friday

Hours Of Operation

Our Drive-Thru Express Teller Machine is open 24/7 for self-service transaction

Monday - Thursday


9 a.m. - 5 p.m.


    9 a.m. - 5 p.m.



      9 a.m. - 5 p.m.


        9 a.m. - 5 p.m.


          No Saturday Hours At This Time.


          Branch Convenient Services

          Going Beyond The Norm To Serve You

          We're All About Making Your Life A Little Bit Easier With These Convenient Services.

          Notary Services: Available at all branch locations and free to our members.

          Medallion Signature Guarantee: Available in our Seaford, Delaware, office and free to members who need signature verification on a securities transfer to protect against fraud. Please call ahead at 302-629-0100 to ensure an authorized representative is available.

          ATMs: Free to our members. Available at all branches except Salisbury*

          Express Teller Machines: Our Express Teller Machines provide the same options as a live teller. Conduct self-service transactions 24/7 or connect with a teller by video during normal business hours. Avoid lines when you're conducting transactions. Service is available at your convenience.*

          Night Depositories: Available at all branch locations.*

          Coin Machines: Stop rolling coins. Let our machines count them for you. Available at all branch locations* and free to our members.

          Instant-Issue Debit and Credit Cards: Visit us and get a new card within minutes. Available at all branch locations

          *Excluding Salisbury Branch

          Holiday Hours

          Tidemark Federal Credit Union branches will be closed on the following holidays. Keep in mind, you always have access to your account through Online, Mobile and Phone Banking.
          HOLIDAY DATE
          New Year's Day Monday, January 2nd
          Birthday of Martin Luther King, Jr. Monday, January 16th
          Presidents Day and Washington's Birthday Monday, February 20th
          Memorial Day Monday, May 29th
          Juneteenth National Independence Day Observed Monday, June 19th
          Independence Day Tuesday, July 4th
          Labor Day Monday, September 4th
          Columbus Day Monday, October 9th
          Veterans Day Friday, November 10th
          Thanksgiving Day Thursday, November 23th
          Christmas Day Observed Monday, December 25th

          Savings Goals Within Reach:
          Discover Our Best Local Rates

          AUTO loan

          Frequently Asked Questions

          Plus, You Get Access to Our Member Premium Benefits


          You Become a Member-Owner

          We don't exist to enhance the wealth of our shareholders, we are member-owned. As a not-for-profit organization, we use our profits to increase Member benefits and support community causes.


          Your Money is Insured & Protected

          Instead of being covered under FDIC, your deposits are covered under the National Credit Union Administration (NCUA), which insures deposits up to $250,000, the same amount as the FDIC. It’s a different name but the same function.


          Your Funds Are Easy to Access

          With online and mobile banking, you have access to your account anytime and anywhere from your computer, smartphone, or tablet. Check your account balance, transfer funds, pay bills, and manage your finances easily without going to the bank.