NCUA Insured
Member-Owned
1 charter
Established in 1959
Contact this credit union directly for detailed information about membership eligibility and current rates.
Membership Eligibility
Anyone who lives, works, or worships in or around Seaford, DE may be eligible to join. Community credit unions are open to the general public within their service area.
Check eligibility on their website →NCUA Insured — deposits protected up to $250,000
Member-Owned — not-for-profit cooperative
1 charter
Established in 1959
Low-Income Designated
Contact this credit union directly for detailed information about membership eligibility, current rates, and services.
Services Offered
This credit union is located in Seaford and serves members in the DE area. Currently serving 22,105 members.
Contact the credit union to confirm membership eligibility requirements for your area.
Credit union membership is based on a common bond. Contact this credit union directly to confirm you qualify for membership.
Key indicators from NCUA regulatory filings. Tap any metric to learn what it means.
Source: NCUA Federally Insured Credit Unions list, Q4 2025.
Rates sourced from NCUA call report data (Q4 2025). Contact the credit union for current rates and terms.
New Auto Loan
6.40%Used Auto Loan
6.40%Personal Loan
11.32%Credit Card APR
13.25%Important: Rates are sourced from NCUA call report filings (Q4 2025) and reflect averages reported by the credit union — not guaranteed quotes. Contact the credit union directly for current rates and terms.
Your actual rate will vary based on your credit score, loan term, and financial profile. Personal loans and credit cards tend to see the most variation.
Lowest rates currently reported by credit unions in DE (NCUA Q4 2025).
New Castle, DE
Wilmington, DE
New Castle, DE
New Castle, DE
Rates from NCUA regulatory filings. Contact credit unions directly for current rates.
3.0
43 Google reviews
Reviews sourced from Google Maps. Ratings reflect member experiences at this credit union.
View on Google MapsDavid Greene
a year ago
My wife's debit card was compromised or hacked over 2 weeks ago. Tide Mark lied to her and said they were sending her one in the mail. Which they didn't. I'm 67 years old I've never seen such poor customer service out of any company I ever dealt with. Then they say they overnighted to us and that was a lie also. So before you use tide mark check their credit ratings and reviews and I'm sure you'll change your mind if you have half a brain. We are still waiting stop lying to us and be professional
Melanie Diggs
2 years ago
This is Andy Wayson writing this review. I'm using my girlfriend, Melanie's Google account since I don't have one. I recently bought a used RV. During the process I needed to secure financing. I quickly became frustrated as I searched several online Companies. They all wanted me to fill out online applications. I'm old school and don't like doing it that way. None of them had a number to call and speak with a human, until I found Tidemark FCU in Seaford Delaware. I called the number and Pamela Varvaro answered. She had a very friendly voice and told me they handled RV loans. When I asked her about their terms, she got straight to the point. To my joy they were the best I had heard over anyone else. Pamela made the process super simple and guided me through it like a Pro. She made my sale streamline and it was great working with her. I'm a customer for life and have told others about how impressed I was with her and Tidemark FCU. If you need everyday banking or a loan of any type. I highly recommend Tidemark FCU !!! Thanks Pamela Varvaro for your customer support. As a business owner , I can assure those above you, that you're representing Tidemark with the upmost competence... Captain Andy Wayson
T. Thomas
2 years ago
I wanted to say thank you to Ebony Hopkins for all of her kindness and assistance. Ms. Hopkins went out of her way to provide exceptional service to my family in our time of need. Her patience and empathy provided comfort and support - especially for my mother. Thank Ebony for all you have done for us.
Cam Hafer
10 months ago
This bank is starting to cause issues with me I love the early paychecks but now they are causing issues because my card locked without me even knowing and I wanna know why they locked my card
Jim Wentworth
3 years ago
My experiance with Tidemark was very good. I always delt with Rehoboth branch. 5 stars for them. But the other branches have been difficult to deal with. Making bank transfers to them from PNC are often denied for verification of funds. The app is buggy. Often, can't access, and when i do, it states that there is no information available. I am transferring all my funds to PNC bank. They are much more useful and helpful. I am very disappointed in how difficult things have become with Tidemark.
Weekdays 9am–4pm typically have the shortest wait times for new member inquiries.
Your deposits are federally insured up to $250,000 per account category by the National Credit Union Administration (NCUA).
Phone
(302) 629-0100Website
Visit WebsiteMembers
22,105
Total Assets
$462.8M
Year Opened
1959
Net Worth
Well Capitalized
Designations
Official NCUA Data
All data sourced from the National Credit Union Administration (NCUA).
View NCUA Profile