NCUA-insured credit union
Mountaincrest — Arlington, WA
Credit Union headquartered in Arlington, Washington.
Source: NCUA call report data, data as of March 31, 2026, fetched September 5, 2026
Headquarters and contact
| Address | 3710 168Th St Ne Ste A108 Arlington, WA 98223 |
| County | Snohomish |
| Website | not published in NCUA data |
| Phone | (360) 435-5400 |
NCUA record
| NCUA Charter | 68253 |
| Federal Reserve RSSD ID | 719094 |
| Status | Active |
| Charter type | 2 (STATE) |
| Financials as of | March 31, 2026 |
How to find your Mountaincrest 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
| Arlington Branch main office Arlington, WA |
3710 168Th St Ne Ste A108, 98223 (360) 435-5400 M - Thurs 8:30 - 5:00 p.m. Fri - 8:30 - 5:30 p.m. |
| Everett Branch Everett, WA |
1328 Broadway, 98201 (360) 435-5400 M-Thurs. 8:30 - 5:00 p.m. Fri 8:30 - 5:30 p.m. |
Where Mountaincrest has offices
Cities with the most Mountaincrest offices
Largest credit unions headquartered elsewhere in Washington
| Boeing Employees Tukwila | $30.01 billion |
| Gesa Richland | $6.72 billion |
| Spokane Teachers Liberty Lake | $6.38 billion |
| Washington State Employees Olympia | $5.11 billion |
| Numerica Spokane Valley | $4.34 billion |
| Peak Olympia | $4.27 billion |
| Sound Tacoma | $3.45 billion |
| Whatcom Educational Bellingham | $3.33 billion |
Compare before you open an account: today's CD and savings rates, the CD calculator and the savings calculator.
