CORNERSTONE
Federal • Fairfield, Connecticut • Est. 1934
Quick Facts
- Charter Number
- #24977
- Type
- Federal
- Established
- 1934
- Headquarters
- Fairfield, Connecticut 06825
- Address
- 1515 Black Rock Tpke
- Branches
- 4
- ATMs
- 3
- Members
- 4,421
- Membership Type
- Other/Unknown
CUScore Financial Grade
Based on Q1 2026 NCUA Call Report data
Under CUScore's rules, this institution reports a net worth ratio of at least 10% and a delinquency rate below 1%. This simplified grade is informational, is not an official NCUA rating, and does not determine regulatory or deposit-insurance status.
Financial Overview
Total Assets
Members
4,421 total members
Total Loans
Outstanding loan portfolio
Net Worth Ratio
Financial Details
| Metric | CORNERSTONE |
|---|---|
| Total Assets | $66.7M |
| Members | 4,421 |
| Loans Outstanding | $38.5M |
| Shares & Deposits | $58.5M |
| Net Worth | $7.0M |
| Net Worth Ratio | 10.50% |
| Loan-to-Share Ratio | 65.8% |
| Delinquency Rate | 0.12% |
| Net Income | +$0 |
Source: Q1 2026 NCUA Call Report • Reporting date: 3/31/2026
Branch Locations
4 locations · 3 ATMs
Fairfield
Main Office1515 Black Rock Tpke
Fairfield, CT 06825
Stamford
242 Hope St
Stamford, CT 06906-1602
Wallingford
88 S Main St
Wallingford, CT 06492-4202
BETHEL
155 Greenwood Ave Bldg B
Bethel, CT 06801-2595
Who Can Join CORNERSTONE?
Membership Type: Other/Unknown
Membership eligibility for CORNERSTONE may vary. Contact the credit union directly to confirm qualification requirements.
Contact CORNERSTONE directly or visit their website for the most accurate and up-to-date membership eligibility information.
Find More Credit Unions in Connecticut
Review the Q1 2026 statewide dataset, aggregate ratios, and institutions ranked by reported assets.
View Connecticut RankingsFrequently Asked Questions
CORNERSTONE is listed as federally insured in the Q1 2026 NCUA dataset. NCUA share insurance generally covers qualifying accounts up to the standard maximum amount, with coverage depending on account ownership categories. Verify current status and coverage for your accounts with the NCUA or the institution.
As of the Q1 2026 NCUA Call Report, CORNERSTONE has 4,421 members and a potential membership field of 453,222 people.
CORNERSTONE's reported net worth ratio is 10.50% as of Q1 2026. The NCUA's standard net worth ratio threshold for "well capitalized" is 7%, although official status can involve additional rules.
CORNERSTONE operates 4 branch locations and has access to 3 ATMs. The main office is located at 1515 Black Rock Tpke, Fairfield, CT 06825.
CORNERSTONE was established in 1934. It is a federal credit union chartered under charter number 24977. The institution has been serving members for 92 years.
Data sourced from the NCUA Quarterly Call Report (Q1 2026). CUScore is an independent directory and is not affiliated with the NCUA or CORNERSTONE. All financial data is for informational purposes only.