First Southern Bank
Marion, Illinois, Williamson County
$1.0B in total assets, the 1,032nd largest of 4,309 US banks and 54th of 328 headquartered in Illinois.
- FDIC certificate
- 15565
- Established
- 1937
- Owned by
- Midwest Cmty Bancshares Inc
- Primary regulator
- FDIC
- Website
- www.firstsouthernbank.net
At a glance
Compared with 50 banks headquartered in Illinois with $1 billion to $10 billion in assets, as of June 30, 2026.
| Measure | This bank | Percentile | Peer range, middle 90% | Peer median |
|---|---|---|---|---|
| Total assets | $1.0B | 2% | $2.7B | |
| Loans | $656M | 2% | $2.1B | |
| Deposits | $904M | 4% | $2.3B | |
| Return on assets | 1.51% | 63% | 1.39% | |
| Net interest margin | 4.05% | 80% | 3.53% | |
| Efficiency ratio | 49.2% | 33% | 51.3% | |
| Equity to assets | 10.79% | 74% | 9.97% | |
| Loans to deposits | 73% | 4% | 87% |
Growth
Total assets grew 6.4% a year over the last 5 years and 4.5% a year over 10 years, including 1 acquisition in the last 10 years.
Acquisitions
| Closed | Acquired bank | Assets at acquisition |
|---|---|---|
| Jul 2022 | The Bank of Carbondale Carbondale, IL, an affiliate under the same holding company | $269M |
| Dec 2014 | Herrin Security Bank Herrin, IL | $102M |
| Aug 2014 | First Southern Bank Carbondale, IL | $243M |
| Oct 2006 | C. P. Burnett & Sons, Bankers Eldorado, IL | $47M |
| Jun 2005 | The Egyptian State Bank Carrier Mills, IL, an affiliate under the same holding company | $39M |
Where they operate
19 branches in 4 counties.
Largest markets by deposits
| County | Deposits | Market share | Rank |
|---|---|---|---|
| Jackson County, IL | $471M | 39.4% | 1 of 11 |
| Williamson County, IL | $330M | 17.3% | 2 of 14 |
| Saline County, IL | $90M | 9.7% | 6 of 7 |
| Franklin County, IL | $13M | 1.6% | 8 of 9 |
Deposits by branch from the FDIC Summary of Deposits, June 2026. Rank among all banks with branches in that county.
Branch history since 2016
Net gain of 3 branches since 2016 (16 to 19, +18.8%). 0 opened, 3 acquired, 0 closed or sold.
| Period | What happened | Opened or acquired | Closed or sold | Net change | Branches at end |
|---|---|---|---|---|---|
| Start of 2016 | Starting point | 16 | |||
| 2022 | Acquired The Bank of Carbondale | 3 | 0 | +3 | 19 |
Balance sheet and earnings
Loans by type
| Type | Share | This bank | Peers |
|---|---|---|---|
| Commercial real estate | 36% | 28% | |
| Business (C&I) | 20% | 26% | |
| 1-4 family residential | 18% | 14% | |
| Construction and land | 7% | 7% | |
| Multifamily | 6% | 9% | |
| Consumer | 5% | 6% | |
| Farmland | 2% | 3% | |
| Agricultural | 0% | 2% | |
| Other | 5% | 5% |
Deposits by type
| Type | Share | This bank | Peers |
|---|---|---|---|
| Noninterest-bearing | 45% | 20% | |
| Other interest-bearing | 34% | 55% | |
| Time deposits | 21% | 24% |
Brokered deposits are 0.0% of deposits (peers 8.0%).
Return on assets
Trailing four quarters, with the peer median.
Credit and capital
| This bank | Peer median | |
|---|---|---|
| Noncurrent loans | 3.00% | 0.49% |
| Net charge-offs, annualized | 0.44% | 0.07% |
| Reserves to loans | 1.18% | 1.07% |
| Leverage ratio | 10.85% | 10.08% |
Noncurrent loans exclude government-guaranteed portions.
Related banks
Similar size in Illinois
Largest competitors in Jackson County, IL
Figures as of June 30, 2026 from the bank's Call Report, FDIC structure and branch data, and the Federal Reserve. Short link: bankingstats.com/banks/first-southern-bank-marion-il