FDIC Cert #5531 · Sonora, Texas · Est. 1900

The First National Bank of Sonora - FDIC Bank Health Profile

A community-scale look at The First National Bank of Sonora's own numbers, pulled straight from its quarterly FDIC Call Report.

$684M
Total assets
C
Health grade · Fair
0.87%
Return on assets
10.5%
Tier 1 capital

Data updated July 2026

The verdict

The First National Bank of Sonora earns a PlainBankData health grade of C (58/100), with well-capitalized at 10.53% Tier 1, 0.87% ROA, 81% efficiency ratio.

#1,402
largest of 4,313 FDIC banks by assets
68th
percentile by asset size, nationally
10.53%
Tier 1 ratio - above the 10% well-capitalized line
34th
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.

How The First National Bank of Sonora's 58/100 score adds up

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

The First National Bank of Sonora's composite health score

0/100100/100National avg77/10058/100
The First National Bank of Sonora's composite health score
Tier 1 Capital Ratio (10.53%) 28/40
Return on Assets (ROA) (0.87%) 14/25
Texas Ratio (12.72%) 16/20
Efficiency Ratio (80.80%) 0/15

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

Balance sheet at a glance

Total Assets

$684M

Total balance-sheet footings

Total Deposits

$622M

Customer-funded liabilities

Net Loans

$460M

Outstanding loan book

Net Income

$6M

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.) 9.13% 10.53% 11.93%
Basel III capital ratios - The First National Bank of Sonora

Where The First National Bank of Sonora ranks

Every one of the 4,307 FDIC-insured banks with a computed health score, bucketed by score. The First National Bank of Sonora's score of 58/100 falls in the highlighted band.

The First National Bank of Sonora'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). The First National Bank of Sonora's $684M falls in the highlighted band.

Safety metrics

Tier 1 capital ratio
Well-capitalized 10%

10.53% of risk-weighted assets - above the federal "well-capitalized" threshold of 10%.

Tier 1 Capital Ratio
10.53%
Texas Ratio
12.72%
Equity Capital
$53M

What these ratios mean →

Profitability metrics

Return on Assets (ROA)
34th percentile nationally
0.87%
Return on Equity (ROE)
11.63%
Efficiency Ratio
80.80%

What these mean →

What the numbers say about The First National Bank of Sonora

The First National Bank of Sonora is an FDIC-insured institution (Certificate #5531) headquartered in Sonora, Texas, established in 1900. It holds $684M in total assets - 1,402nd of 4,313 FDIC-insured banks, $622M in customer deposits, and $460M in net loans. Capital-wise, the Tier 1 ratio sits at 10.53%, clearing the federal 10% well-capitalized bar; the Texas Ratio reads 12.72%, a healthy figure under the 50% watch level. That combination rolls up into a PlainBankData health grade of C (58 of 100), blending Tier 1 capital, ROA, the Texas Ratio, and efficiency. These figures come directly from the bank's quarterly FDIC Call Report.

The First National Bank of Sonora sits 126th of 350 banks headquartered in Texas by total assets, placing it in the middle tier of the state's banking landscape.

Income & expense breakdown

$39M
Interest Income
$4M
Non-Interest Income
$25M
Non-Interest Expense

Asset quality, Texas Ratio detail

The Texas Ratio compares troubled assets to the capital available to absorb losses. The First National Bank of Sonora reports a Texas Ratio of 12.72% - comfortably in the healthy band; non-performing loans are a small fraction of the bank’s loss-absorbing capital.

Texas Ratio
Caution 50%

12.72% - lower is safer; 100% is the level at which troubled assets equal loss-absorbing capital.

FDIC Failed Bank List → View The First National Bank of Sonora on FDIC BankFind →

Top banks in Texas by total assets

Largest banks headquartered in Texas
  1. 1

    Westlake, TX · Grade A

  2. 2
    Frost Bank $53.1B

    San Antonio, TX · Grade A

  3. 3

    El Campo, TX · Grade A

  4. 4

    Dallas, TX · Grade A

  5. 5

    Westlake, TX · Grade A

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

Source: FDIC BankFind Suite, Call Report (FFIEC 031/041) The First National Bank of Sonora (FDIC Cert #5531) - 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.

Other banks in Texas

All Texas banks →
BankAssetsGradeROA
Charles Schwab Bank, SSBWestlake $253.8B A 0.94%
Frost BankSan Antonio $53.1B A 1.26%
Prosperity BankEl Campo $38.5B A 1.44%
Texas Capital BankDallas $31.3B A 1.10%
Charles Schwab Premier Bank, SSBWestlake $27.0B A 1.47%
First Financial BankAbilene $15.4B A 1.64%
NexBankDallas $13.9B A 1.17%
PlainsCapital BankUniversity Park $12.7B B 1.05%

Frequently asked questions

What is The First National Bank of Sonora's health grade?
The First National Bank of Sonora receives a health grade of C (58/100) based on four FDIC financial metrics: Tier 1 Capital Ratio (40%), Return on Assets (25%), Texas Ratio (20%), and Efficiency Ratio (15%). This bank meets regulatory minimums but has some areas of financial weakness to monitor.
How large is The First National Bank of Sonora?
The First National Bank of Sonora holds $684M in total assets and $622M in deposits, ranking 1,402nd of 4,313 FDIC-insured banks by asset size. It is headquartered in Sonora, Texas.
Is my money safe at The First National Bank of Sonora?
Yes, deposits at The First National Bank of Sonora (Certificate #5531) are FDIC-insured up to $250,000 per depositor, per ownership category, regardless of health grade.
What is The First National Bank of Sonora's Tier 1 Capital Ratio?
The First National Bank of Sonora has a Tier 1 Capital Ratio of 10.53%. That clears the federal 10% bar regulators use to call a bank "well-capitalized."
What is the Texas Ratio for The First National Bank of Sonora?
The First National Bank of Sonora has a Texas Ratio of 12.72%. Staying under 50% is the level analysts treat as healthy. The Texas Ratio measures non-performing loans against equity and reserves, a higher ratio signals greater exposure to loan losses.
How efficient is The First National Bank of Sonora?
The First National Bank of Sonora has an Efficiency Ratio of 80.80%. Past the 60% mark, a bigger slice of revenue is absorbed by operating costs. This metric compares non-interest expenses to total revenue.

What to do with this

How to read The First National Bank of Sonora's profile as a depositor or analyst.

  • The First National Bank of Sonora's grade reflects capital, profitability, and asset quality, read the four pillars before drawing conclusions. How grades work
  • Compare The First National Bank of Sonora against other Texas banks before moving funds. Texas banks

Not financial advice. Health grades are PlainBankData's interpretation of public FDIC Call Report data, not official FDIC ratings or predictions. Verify the latest figures at the FDIC BankFind Suite.

Every figure on PlainBankData is rendered directly from FDIC federal source data, no number is typed in by an editor. Informational only, not professional advice; consult a qualified professional before acting on it. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Q4 2025.

Disclaimer: Data from the FDIC BankFind Suite. PlainBankData does not rate or rank banks as investment or safety recommendations. Health grades are informational only, computed from public regulatory filings. Always verify current standing directly with FDIC.gov before making financial decisions.