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Southern Illinois Bank: Deposit Base

Data as of · Call Report Schedules RC-E and RC-O How we update

How the bank is funded. Core deposits are the stable, mostly-insured relationship money; brokered and uninsured balances are the fastest to leave. The 2023 regional bank failures were runs on uninsured deposits, which is why that share now gets read first.

Time deposits under $100k dropped 13.5% in Q2 2026, from $7.2M to $6.2M. It was the largest change from Q1 2026 among the key lines here. Within Illinois, Southern Illinois Bank is 240th of 323 on total deposits, $114.1M as of Q2 2026, below the middle of the field. Against a median of $277.3M for banks in the $100M-1B asset tier, Southern Illinois Bank reported $114.1M on total deposits in Q2 2026, 59% lower.

Deposit totals

Deposit totals for Southern Illinois Bank, Q2 2026
Line item Q2 2026
Total deposits $114.1M
Domestic office deposits $114.1M
Foreign office deposits —
Deposits to total assets 83.62%
Deposits to total liabilities 99.40%

Deposit composition

Deposit composition for Southern Illinois Bank, Q2 2026
Line item Q2 2026
Demand deposits $33.4M
Savings deposits $13.3M
Transaction accounts to domestic deposits 54.90%
Time deposits $12K
Time deposits under $100k $6.2M
Time deposits $100k to $250k $3.8M
Time deposits over $250k $3.8M
Noninterest-bearing share of deposits 29.28%

Stability of funding

Stability of funding for Southern Illinois Bank, Q2 2026
Line item Q2 2026
Core deposits $110.4M
Core deposits to total deposits 96.69%
Insured deposits —
Uninsured deposits —
Uninsured deposits to total deposits —
Brokered deposits $0
Brokered deposits to total deposits 0.00%

Cost of deposits

Cost of deposits for Southern Illinois Bank, Q2 2026
Line item Q2 2026
Cost of interest-bearing deposits 1.73%
Interest expense on deposits $354K
Loans and leases to core deposits 66.63%

Deposit Base trend

Last 12 quarters as filed. Every value plotted here also appears in the tables above.

Total deposits
Core, uninsured and brokered shares
Cost of interest-bearing deposits

Deposit Base by quarter

Values plotted above, Southern Illinois Bank, oldest first
Quarter Total depositsCore depositsBrokered depositsCost of interest-bearing deposits
Q3 2023 $128.3M 95.77% 0.00% 1.64%
Q4 2023 $124.7M 94.19% 0.00% 1.92%
Q1 2024 $125.5M 93.73% 0.00% 2.08%
Q2 2024 $122.8M 94.09% 0.00% 2.23%
Q3 2024 $126.5M 92.76% 0.00% 2.36%
Q4 2024 $122.8M 92.10% 0.00% 2.41%
Q1 2025 $121.5M 95.32% 0.00% 2.20%
Q2 2025 $128.6M 95.96% 0.00% 2.13%
Q3 2025 $121.1M 95.69% 0.00% 2.04%
Q4 2025 $115.9M 95.46% 0.00% 1.96%
Q1 2026 $116.3M 96.99% 0.00% 1.77%
Q2 2026 $114.1M 96.69% 0.00% 1.73%

Southern Illinois Bank deposit base, all the way back

Deposit Base back to 2001 · peer percentiles on every line item · Excel export

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Source: Call Report Schedules RC-E and RC-O, as filed with the FFIEC and standardized by BankRegReports. Dollar amounts are as reported, point-in-time; income statement items are year-to-date through the report date. See the full Southern Illinois Bank profile, peer group comparison, or how this data updates.

Regulator records: FDIC BankFind (cert 35229) · FFIEC NIC profile (RSSD 2847085)