NCUA-insured credit union
Cornerstone — Fairfield, CT
Credit Union headquartered in Fairfield, Connecticut.
Source: NCUA call report data, data as of March 31, 2026, fetched September 5, 2026
Headquarters and contact
| Address | 1515 Black Rock Tpke Fairfield, CT 06825 |
| County | Greater Bridgeport |
| Website | not published in NCUA data |
| Phone | (203) 366-1336 |
NCUA record
| NCUA Charter | 24977 |
| Federal Reserve RSSD ID | 958071 |
| Status | Active |
| Charter type | 1 (NCUA) |
| Financials as of | March 31, 2026 |
How to find your Cornerstone 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
| Fairfield main office Fairfield, CT |
1515 Black Rock Tpke, 06825 (203) 366-1336 mon, tue 8:30 - 4:00, Wed 10:00-4:00, Thur, Fri 8:30 - 5:00 |
| Bethel Bethel, CT |
155 Greenwood Ave Bldg B, 06801 (203) 778-8676 Monday 9 3Tures 9-3Weds 9-3Thurs 9-3Fri 9-3 |
| Stamford Stamford, CT |
242 Hope St, 06906 (203) 324-2144 Mon, Tue, Fri 8:30 - 4:15, Wed 10:00 - 4:15, Thur 8:30 - 7:00 |
| Wallingford Wallingford, CT |
88 S Main St, 06492 (203) 294-2015 iday 8:30AM?4:30PM Saturday Closed Sunday Closed Monday 8:30AM?3PM Tuesday 8:30AM?3PM Wednesday 8:30AM?5PM Thursday 8:30AM?5PM |
Where Cornerstone has offices
Cities with the most Cornerstone offices
Largest credit unions headquartered elsewhere in Connecticut
| American Eagle Financial East Hartford | $2.76 billion |
| Connecticut State Employees Hartford | $2.70 billion |
| Charter Oak Waterford | $1.70 billion |
| Sikorsky Financial Stratford | $1.44 billion |
| Connex North Haven | $1.04 billion |
| Nutmeg State Financial Rocky Hill | $885.23 million |
| Coreplus Norwich | $671.26 million |
| Dutch Point Wethersfield | $560.02 million |
Compare before you open an account: today's CD and savings rates, the CD calculator and the savings calculator.
