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Banks · Wisconsin

Oostburg State Bank

Oostburg, WI · FDIC Certificate #10380 · Chartered 03/0

Total assets
$440.18M
Total deposits
$388.37M
Total equity
$47.66M
Net loans
$316.97M
Branches (offices)
4
Net income (YTD)
$3.01M
Rank: #1,944 of 4,213 U.S. banks by assets · #73 of 153 in Wisconsin. Assets changed 12.7% and deposits 13.0% over the year to June 30, 2026.
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Key ratios

Return on assets (YTD, annualized by FDIC)1.39%
Return on equity13.11%
Net interest margin (YTD)4.03%
Equity to assets10.83%
Tier 1 leverage ratio11.64%
Uninsured deposits (share of deposits)21.3%
Noncurrent loans (share of loans)0.13%
Net charge-offs (share of loans)0.13%
Loans to deposits81.6%
Real estate loans (share of loans)81.0%

Loan mix

CategoryAmountShare
Real estate loans$256.88M
81.0%
Commercial & industrial$50.99M
16.1%
Consumer / individual$2.57M
0.8%
Construction & development$21.14M
6.7%
Agricultural$164.00K
0.1%

Five-year trend (June snapshots)

PeriodTotal assetsDepositsNet income (year to date)Equity / net worth
Jun 2022$340.81M$305.73M$1.88M$33.18M
Jun 2023$335.36M$295.19M$1.79M$35.09M
Jun 2024$359.27M$316.75M$1.88M$38.31M
Jun 2025$390.44M$343.82M$2.15M$42.00M
Jun 2026$440.18M$388.37M$3.01M$47.66M

Where its branch deposits sit (FDIC Summary of Deposits)

StateBranch depositsOffices
Wisconsin$388.37M4

Branch deposits are booked at the office that holds them, which is not always where the customer lives. Total across all offices: $388.37M.

Similar-sized banks

Spring Bank ($440.73M) · Morgantown Bank & Trust Company, Incorporated ($439.66M)

Source: FDIC BankFind - Call Report and institution data as of June 30, 2026; branch deposits from the FDIC Summary of Deposits (June 30, 2026). See methodology.

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