NCUA-insured credit union
Tidemark — Seaford, DE
Credit Union headquartered in Seaford, Delaware.
Source: NCUA call report data, data as of March 31, 2026, fetched September 5, 2026
Headquarters and contact
| Address | 1941 Bridgeville Hwy Seaford, DE 19973 |
| County | Sussex |
| Website | not published in NCUA data |
| Phone | (302) 629-0100 |
NCUA record
| NCUA Charter | 13121 |
| Federal Reserve RSSD ID | 879989 |
| Status | Active |
| Charter type | 1 (NCUA) |
| Financials as of | March 31, 2026 |
How to find your Tidemark routing number
NCUA does not publish ABA routing numbers, and many credit unions use different routing numbers by state or by account type. The reliable places to find yours: the bottom left of a check from this credit union, the "account details" screen in its online banking, or its official website.
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Offices
| Tidemark Federal Credit Union main office Seaford, DE |
1941 Bridgeville Hwy, 19973 (302) 629-0100 8-5 |
| Tidemark Federal Credit Union Lewes, DE |
34686 Old Postal Ln, 19958 (302) 629-0100 9 am to 5 pm |
| Tidemark Federal Credit Union Milford, DE |
140 Aerenson Dr, 19963 (302) 629-0100 9 a.m. to 5 p.m. |
| Tidemark Federal Credit Union Millsboro, DE |
216 S Washington St P O Box 1630, 19966 (302) 629-0100 9 am to 5 pm |
| Tidemark Federal Credit Union Millsboro, DE |
24940 John J Williams Hwy, 19966 (302) 629-0100 9 am to 5 pm |
| Tidemark Federal Credit Union Selbyville, DE |
36445 Lighthouse Rd, 19975 (302) 629-0100 9 am to 5 pm |
| Tidemark Federal Credit Union Salisbury, MD |
1305 S Salisbury Blvd, 21801 (302) 629-0100 9 am to 5 pm |
Where Tidemark has offices
Cities with the most Tidemark offices
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