Seaford DE Branch

At Tidemark Federal Credit Union, we help you open a checking account, apply for a credit card, mortgage or auto loan, and more. Come see how we can improve your financial well-being.

We love to see your smiling face

At our Seaford, Delaware, credit union branch and corporate headquarters on Bridgeville Highway, our helpful team answers your questions and provides neighborly service to support your personal and business financial goals.

1941 Bridgeville Highway
PO Box 1800
Seaford, DE 19973
P: 302-629-0100
F: 302-629-0966

Day Lobby Drive-Thru
Monday - Thursday 9 a.m. - 5 p.m. 9 a.m. - 5 p.m.
Friday 9 a.m. - 5 p.m. 9 a.m. - 5 p.m.

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

2020 Holidays

Tidemark Federal Credit Union branches will be closed on the following holidays in 2020. Keep in mind, you always have access to your account through OnlineMobile and Phone Banking.

Holiday Date
New Year's Day Wednesday, January 1
Birthday of Martin Luther King, Jr. Monday, January 20
Presidents Day and Washington's Birthday Monday, February 17
Memorial Day Monday, May 25
Independence Day Friday, July 3 & Saturday, July 4
Labor Day Monday, September 7
Columbus Day Monday, October 12
Veterans Day Wednesday, November 11
Thanksgiving Day Thursday, November 26
Christmas Day Friday, December 25



  • ATM
  • Express Teller Machines provide either self-service option or live video interaction with teller
  • Notary services
  • Medallion Signature Guarantee
  • Night deposits
  • Safe deposit boxes
  • Instant Issue VISA Debit and Credit Cards
  • Emergency Checks