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Cornerstone State Bank

Montgomery, MN · Est. 1974 · Website ↗
B
Trust Grade
Strong
Score: 89/100

Cornerstone State Bank is a bank based in Montgomery, Minnesota, established in 1974, with $243 million in total assets across 7 branches. By Trust Grade it ranks 174th of 224 banks we track in Minnesota. Its capital ratio of 7.6% trails most similarly sized banks (11th percentile), versus a Minnesota median of 9.5%. It was profitable over the most recent period, with a 1.32% return on assets. No consumer complaints against Cornerstone State Bank appear in the CFPB database over our analysis window — common for an institution of this size and a point in its favor.

Total assets
$243.1M
$100M–1B institution
Deposits
$221.5M
Branches
7
Capital ratio
7.6%
Bottom 11% of $100M–1B peers · Minnesota median 9.5%
Return on assets
1.3%
Top 43% of $100M–1B peers · Minnesota median 1.24%
Rank in Minnesota
#174
of 224 banks

How Cornerstone State Bank compares to Minnesota peers

Capital ratio
Bottom 11% of $100M–1B peers
Cornerstone State
7.6%
Minnesota median
9.5%
Higher capital ratio = stronger financial cushion
Return on assets
Top 43% of $100M–1B peers
Cornerstone State
1.3%
Minnesota median
1.2%
Higher ROA = more profitable relative to asset base

How we graded Cornerstone State Bank

The Trust Grade blends financial strength with complaint history. Full methodology →

Financial strength
89/100
Customer experience
n/a
Overall
B · 89
  • Well-capitalized (7.6% capital ratio)
  • Strongly profitable (ROA 1.32%)
  • No CFPB complaints on record

Consumer complaints (CFPB)

No CFPB complaints are on file for Cornerstone State Bank over the analysis window. For a smaller institution this is common and counts in its favor.

Branch locations (7)

  • 500 Main St, Madison Lake, MN 56063
  • 401 4th St Nw, Montgomery, MN 56069
  • 600 Parkway Ave, Eagle Lake, MN 56024
  • 451 3rd St, Green Isle, MN 55338
  • 1516 Cloquet Ave, Cloquet, MN 55720
  • 415 N Main St, Le Sueur, MN 56058
  • 406 E Poplar St, Belle Plaine, MN 56011

Are deposits at Cornerstone State Bank insured?

Yes. Cornerstone State Bank is an FDIC-insured bank (FDIC certificate #21525). Deposits are federally insured up to $250,000per depositor, per ownership category — regardless of this institution's Trust Grade. The grade reflects financial strength and complaint history for comparison, not the safety of insured deposits.

Cornerstone State Bank: frequently asked questions

Is Cornerstone State Bank a good bank?

Cornerstone State Bank earns a Bankzia Trust Grade of B (89/100, "Strong"), based on a financial-strength score of 89/100 (it has no CFPB complaints on record). Well-capitalized (7.6% capital ratio); Strongly profitable (ROA 1.32%).

Is Cornerstone State Bank FDIC-insured?

Yes. Cornerstone State Bank is a FDIC-insured bank (FDIC certificate #21525). Deposits are protected up to the standard FDIC limit of $250,000 per depositor, per ownership category.

How big is Cornerstone State Bank?

Cornerstone State Bank holds $243 million in total assets, ranking 174th of 224 banks we track in Minnesota. It operates 7 branches.

Does Cornerstone State Bank have CFPB complaints?

No CFPB complaints against Cornerstone State Bank appear in our data over the analysis window, which is typical for a bank of this size.

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Financial data from FDIC call reports; complaint data from the CFPB Consumer Complaint Database. Bankzia is an independent resource and is not affiliated with any government agency or financial institution. Figures are for general information, not financial advice.

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