FDIC Cert #21525 · Montgomery, Minnesota · Est. 1974

Cornerstone State Bank - FDIC Bank Health Profile

A community-scale look at Cornerstone State Bank's own numbers, pulled straight from its quarterly FDIC Call Report.

Compiled from official public sources by the publisher.
$242M
Total assets
B
Health grade · Good
0.83%
Return on assets
10.3%
Tier 1 capital

Data updated July 2026

The verdict

Cornerstone State Bank earns a PlainBankData health grade of B (66/100), with well-capitalized at 10.32% Tier 1, 0.83% ROA, 71% efficiency ratio.

#2,781
largest of 4,313 FDIC banks by assets
36th
percentile by asset size, nationally
10.32%
Tier 1 ratio - above the 10% well-capitalized line
31st
percentile for profitability (ROA), nationally

The grade above reflects PlainBankData's own read of the bank's regulatory filings, not an FDIC judgment, deposit coverage stays at $250,000 per depositor, per category, unaffected by it.

FDIC Call Report plate

Cert 21525 · MN B · 66/100

GRADE-B · LOWER-Q · PHOTO-FINISH · TIER1-WELL · TEXAS-CLEAN · ROA-PAR · SIZE-MID · BOOK-FULL

  • GRADE-B B (66/100)
  • LOWER-Q #3453/4307
  • PHOTO-FINISH Three Rivers Bank of… · MT
  • TIER1-WELL 10.3% Tier 1
  • TEXAS-CLEAN 3.6% Texas
  • ROA-PAR 0.83% ROA
  • SIZE-MID $100M–1B
  • BOOK-FULL 9/9 fields

Nearest health peer outside Minnesota: Three Rivers Bank of Montana, MT (±0 health pts)

Instrument codes from this bank’s FDIC Call Report sheet: grade band, health peer rank, photo-finish gap, Tier 1, Texas Ratio, ROA, size band, and book completeness. Not an official FDIC rating.

Health-score neighbourhood around Cornerstone State Bank

Lowest and highest poles plus nearest scored peers outside Minnesota, not a full FDIC corpus board reprint.

Morgan Stanley Bank,… · UT ·…100/100Cornerstone State Bank · MN …66/100First State Bank of… · AR · …66/100Kirkwood Bank & Trus… · ND ·…66/100PeoplesSouth Bank · GA · near66/100Three Rivers Bank of… · MT ·…66/100Tioga-Franklin Savin… · PA ·…0/100
PlainBankData health composite · neighbourhood around Cornerstone State Bank · July 2026

Call Report read for Cornerstone State Bank in a high-failure state

Cornerstone State Bank (FDIC Cert #21525) carries a PlainBankData health grade of B at 66/100, built only from this bank's own Call Report Tier 1 capital, ROA, Texas Ratio, and efficiency inputs. On the scored corpus it sits at health rank #3,453 of 4,307. Tier 1 capital prints at 10.32%, clearing the 10% well-capitalized line. The Texas Ratio is 3.64%, inside the sub-50% band analysts treat as healthy. Return on assets is 0.83%. Balance-sheet scale is $242M, 2,781st of 4,313 FDIC-insured banks by assets. The nearest cross-state health peer is Three Rivers Bank of Montana (MT), tied on the composite. These are instrument codes from the Call Report sheet, not an official FDIC CAMELS rating, and insured deposits stay protected to $250,000 per depositor per ownership category regardless of grade. Compare the plate stamps against the score breakdown and the health-score neighbourhood before treating any single ratio as decisive.

State failure history around Cornerstone State Bank

24 FAILURE resolutions in Minnesota since 2000, heavy vs the state corpus

Cornerstone State Bank sits in one of the heavier post-2000 FAILURE states (24 resolutions; latest year 2014). The list below is state history from the Failed Bank List, not a claim about Cornerstone State Bank's current Call Report.

  • NORTHERN STAR BANK MANKATO, MN 2014 → BANKVISTA
  • 1ST REGENTS BANK ANDOVER, MN 2013 → FIRST MINNESOTA BANK
  • FIRST COMMERCIAL BANK BLOOMINGTON, MN 2012 → REPUBLIC BANK & TRUST COMPANY

Source: FDIC Failed Bank List (resolution_type=FAILURE only; ASSISTANCE excluded). See the depositor failures guide and Minnesota banks.

How Cornerstone State Bank's 66/100 score adds up

Each factor is scored from this bank's own FDIC Call Report figures, then summed to the composite health score.

0/100100/100National avg77/10066/100
Cornerstone State Bank's composite health score
Tier 1 Capital Ratio (10.32%) 28/40
Return on Assets (ROA) (0.83%) 14/25
Texas Ratio (3.64%) 20/20
Efficiency Ratio (70.67%) 4/15

66 of 100 points earned across four weighted factors. See our methodology for the full scoring formula.

Balance sheet at a glance

Total Assets

$242M

Total balance-sheet footings

Total Deposits

$219M

Customer-funded liabilities

Net Loans

$153M

Outstanding loan book

Net Income

$2M

Bottom-line earnings

Capital adequacy vs federal thresholds

0% 2% 4% 6% 8% 10% 12% CET1 (≥6.5% req.) Tier 1 (≥8.0% req.) Total (≥10.0% req.) 8.92% 10.32% 11.72%
Basel III capital ratios - Cornerstone State Bank

Where Cornerstone State Bank ranks

Every one of the 4,307 FDIC-insured banks with a computed health score, bucketed by score. Cornerstone State Bank's score of 66/100 falls in the highlighted band.

Cornerstone State Bank: health score vs. every FDIC-insured bank

0-100 composite health score, FDIC Call Reports

66 20th percentile higher than 20% of 4,307 FDIC-insured banks

0–10: 3 FDIC-insured banks (0%). Below this entry. 10–20: 6 FDIC-insured banks (0%). Below this entry. 20–30: 26 FDIC-insured banks (1%). Below this entry. 30–40: 36 FDIC-insured banks (1%). Below this entry. 40–50: 98 FDIC-insured banks (2%). Below this entry. 50–60: 279 FDIC-insured banks (6%). Below this entry. 60–70: 777 FDIC-insured banks (18%). This entry sits in this band. 70–80: 1,030 FDIC-insured banks (24%). Above this entry. 80–90: 1,237 FDIC-insured banks (29%). Above this entry. 90–100: 815 FDIC-insured banks (19%). Above this entry. Cornerstone State Bank 0 100 every FDIC-insured bank with a health score, bucketed by value

Each bar is a band; taller bars hold more FDIC-insured banks. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source FDIC Call Reports · July 2026

Cornerstone State Bank's size among FDIC-insured banks

Every one of the 4,307 FDIC-insured banks with reported assets, bucketed by total-asset scale (note the buckets are powers of 10, most banks cluster in the $100M-$1B range). Cornerstone State Bank's $242M falls in the highlighted band.

Capital & credit buffers at Cornerstone State Bank

Tier 1 capital ratio
Well-capitalized 10%

10.32% of risk-weighted assets - above the federal "well-capitalized" threshold of 10%.

Tier 1 Capital Ratio
10.32%
Texas Ratio
3.64%
Equity Capital
$19M

What these ratios mean →

Profitability metrics: Cornerstone State Bank

Return on Assets (ROA)
31st percentile nationally
0.83%
Return on Equity (ROE)
11.87%
Efficiency Ratio
70.67%

What these mean →

Income & expense at Cornerstone State Bank

$11M
Interest Income
$1M
Non-Interest Income
$6M
Non-Interest Expense

Asset quality, Texas Ratio detail

The Texas Ratio compares troubled assets to the capital available to absorb losses. Cornerstone State Bank reports a Texas Ratio of 3.64% - comfortably in the healthy band; non-performing loans are a small fraction of the bank’s loss-absorbing capital.

Texas Ratio
Caution 50%

3.64% - lower is safer; 100% is the level at which troubled assets equal loss-absorbing capital.

FDIC Failed Bank List → View Cornerstone State Bank on FDIC BankFind →

Top banks in Minnesota by total assets

Largest banks headquartered in Minnesota
  1. 1
    Ameriprise Bank, FSB $25.3B

    Minneapolis, MN · Grade A

  2. 2
    Bridgewater Bank $5.4B

    Saint Louis Park, MN · Grade A

  3. 3
    Frandsen Bank & Trust $3.7B

    Lonsdale, MN · Grade A

  4. 4
    Stearns Bank $3.3B

    Saint Cloud, MN · Grade A

  5. 5
    Minnwest Bank $3.0B

    Redwood Falls, MN · Grade B

Top 5 banks in Minnesota ranked by total assets · FDIC Call Report Q4 2025.

Nationwide banks with similar total assets

Nearest other-state banks with ≥$10M assets ($242M here), outside Minnesota so the neighborhood is not state containment.

BNY Mellon Trust of Delaware $242M · DE Malvern Bank $242M · IA The Citizens Bank $242M · AL First Federal Savings and Loan Associ… $242M · OH

Source: FDIC BankFind Suite, Call Report (FFIEC 031/041) Cornerstone State Bank (FDIC Cert #21525) - Tier 1 capital ratio, total assets, deposits, ROA/ROE · 2025 FDIC Call Reports filed quarterly; latest publicly-available vintage shown. Health grades are PlainBankData's interpretation of regulatory filings and are not official FDIC ratings.

Cornerstone State Bank Call Report profile · FDIC Failed Bank List · Minnesota FAILURE history · Informational only, not financial advice; consult a licensed professional before acting. See the disclaimer and methodology.

Other banks in Minnesota

All Minnesota banks →
BankAssetsGradeROA
Ameriprise Bank, FSBMinneapolis $25.3B A 3.08%
Bridgewater BankSaint Louis Park $5.4B A 0.99%
Frandsen Bank & TrustLonsdale $3.7B A 1.48%
Stearns Bank National AssociationSaint Cloud $3.3B A 1.85%
Minnwest BankRedwood Falls $3.0B B 0.92%
Merchants Bank, National AssociationWinona $2.9B A 1.23%
Tradition Capital BankWayzata $2.6B B 0.71%
Think Mutual BankRochester $2.2B B 0.61%