FDIC Cert #58586 · Belcourt, North Dakota · Est. 2007

Turtle Mountain State Bank - FDIC Bank Health Profile

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

$117M
Total assets
A
Health grade · Excellent
2.79%
Return on assets
12.0%
Tier 1 capital

Data updated July 2026

The verdict

Turtle Mountain State Bank earns a PlainBankData health grade of A (88/100), with well-capitalized at 11.99% Tier 1, profitable at 2.79% ROA, efficient (42% cost ratio).

#3,601
largest of 4,313 FDIC banks by assets
16th
percentile by asset size, nationally
11.99%
Tier 1 ratio - above the 10% well-capitalized line
97th
percentile for profitability (ROA), nationally

This grade is PlainBankData's own interpretation of the bank's Call Report, not an FDIC rating, deposits here stay federally insured to $250,000 per depositor, per category, regardless of grade.

How Turtle Mountain State Bank's 88/100 score adds up

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

Turtle Mountain State Bank's composite health score

0/100100/100National avg77/10088/100
Turtle Mountain State Bank's composite health score
Tier 1 Capital Ratio (11.99%) 28/40
Return on Assets (ROA) (2.79%) 25/25
Texas Ratio (0.00%) 20/20
Efficiency Ratio (41.65%) 15/15

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

Balance sheet at a glance

Total Assets

$117M

Total balance-sheet footings

Total Deposits

$104M

Customer-funded liabilities

Net Loans

$36M

Outstanding loan book

Net Income

$4M

Bottom-line earnings

Capital adequacy vs federal thresholds

0% 3% 6% 9% 12% 15% CET1 (≥6.5% req.) Tier 1 (≥8.0% req.) Total (≥10.0% req.) 10.59% 11.99% 13.39%
Basel III capital ratios - Turtle Mountain State Bank

Where Turtle Mountain State Bank ranks

Every one of the 4,307 FDIC-insured banks with a computed health score, bucketed by score. Turtle Mountain State Bank's score of 88/100 falls in the highlighted band.

Turtle Mountain 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). Turtle Mountain State Bank's $117M falls in the highlighted band.

Safety metrics

Tier 1 capital ratio
Well-capitalized 10%

11.99% of risk-weighted assets - above the federal "well-capitalized" threshold of 10%.

Tier 1 Capital Ratio
11.99%
Texas Ratio
0.00%
Equity Capital
$14M

What these ratios mean →

Profitability metrics

Return on Assets (ROA)
97th percentile nationally
2.79%
Return on Equity (ROE)
27.59%
Efficiency Ratio
41.65%

What these mean →

What the numbers say about Turtle Mountain State Bank

Turtle Mountain State Bank is an FDIC-insured institution (Certificate #58586) headquartered in Belcourt, North Dakota, established in 2007. It holds $117M in total assets - 3,601st of 4,313 FDIC-insured banks, $104M in customer deposits, and $36M in net loans. Capital-wise, the Tier 1 ratio sits at 11.99%, clearing the federal 10% well-capitalized bar; the Texas Ratio reads 0.00%, a healthy figure under the 50% watch level. That combination rolls up into a PlainBankData health grade of A (88 of 100), blending Tier 1 capital, ROA, the Texas Ratio, and efficiency. These figures come directly from the bank's quarterly FDIC Call Report.

Turtle Mountain State Bank is a community-scale institution -- 44th of 61 FDIC-insured banks headquartered in North Dakota by asset size. Its modest footprint doesn't diminish its role: community banks this size are typically the primary lender for small local businesses and agricultural borrowers that larger regional banks tend to underserve.

Income & expense breakdown

$7M
Interest Income
$366K
Non-Interest Income
$3M
Non-Interest Expense

Asset quality, Texas Ratio detail

The Texas Ratio compares troubled assets to the capital available to absorb losses. Turtle Mountain State Bank reports a Texas Ratio of 0.00% - comfortably in the healthy band; non-performing loans are a small fraction of the bank’s loss-absorbing capital.

Texas Ratio
Caution 50%

0.00% - lower is safer; 100% is the level at which troubled assets equal loss-absorbing capital.

FDIC Failed Bank List → View Turtle Mountain State Bank on FDIC BankFind →

Top banks in North Dakota by total assets

Largest banks headquartered in North Dakota
  1. 1
    Bell Bank $14.4B

    Fargo, ND · Grade C

  2. 2

    Watford City, ND · Grade B

  3. 3

    Fargo, ND · Grade B

  4. 4

    Grand Forks, ND · Grade C

  5. 5

    Fargo, ND · Grade D

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

Source: FDIC BankFind Suite, Call Report (FFIEC 031/041) Turtle Mountain State Bank (FDIC Cert #58586) - 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 North Dakota

All North Dakota banks →
BankAssetsGradeROA
Bell BankFargo $14.4B C 0.59%
First International Bank & TrustWatford City $6.2B B 1.69%
Choice Financial GroupFargo $6.0B B 1.22%
Alerus Financial, National AssociationGrand Forks $5.2B C 0.42%
Gate City BankFargo $4.0B D 0.60%
Bravera BankDickinson $3.8B B 1.12%
Western State BankDevils Lake $2.6B A 1.79%
First Western Bank & TrustMinot $2.3B C 0.84%

Frequently asked questions

What is Turtle Mountain State Bank's health grade?
Turtle Mountain State Bank receives a health grade of A (88/100) based on four FDIC financial metrics: Tier 1 Capital Ratio (40%), Return on Assets (25%), Texas Ratio (20%), and Efficiency Ratio (15%). This bank demonstrates excellent financial health with strong capital ratios and profitability.
How large is Turtle Mountain State Bank?
Turtle Mountain State Bank holds $117M in total assets and $104M in deposits, ranking 3,601st of 4,313 FDIC-insured banks by asset size. It is headquartered in Belcourt, North Dakota.
Is my money safe at Turtle Mountain State Bank?
Yes, deposits at Turtle Mountain State Bank (Certificate #58586) are FDIC-insured up to $250,000 per depositor, per ownership category, regardless of health grade.
What is Turtle Mountain State Bank's Tier 1 Capital Ratio?
Turtle Mountain State Bank has a Tier 1 Capital Ratio of 11.99%. That clears the federal 10% bar regulators use to call a bank "well-capitalized."
What is the Texas Ratio for Turtle Mountain State Bank?
Turtle Mountain State Bank has a Texas Ratio of 0.00%. 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 Turtle Mountain State Bank?
Turtle Mountain State Bank has an Efficiency Ratio of 41.65%. Under the 60% mark counts as efficient, more of every revenue dollar reaches the bottom line. This metric compares non-interest expenses to total revenue.

What to do with this

How to read Turtle Mountain State Bank's profile as a depositor or analyst.

  • Turtle Mountain State Bank's grade reflects capital, profitability, and asset quality, read the four pillars before drawing conclusions. How grades work
  • Compare Turtle Mountain State Bank against other North Dakota banks before moving funds. North Dakota 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.