Southern Illinois Bank
Johnston City, IL · Owner: Southern Il Bancshares Inc
$136M
total assets, June 30, 2026
$136M
total assets, June 30, 2026
Southern Illinois Bank is a state nonmember bank based in Johnston City, IL, owned by Southern Il Bancshares Inc. As of June 30, 2026 it held $136.5 million in assets and $114.1 million in deposits; assets were down 11.7% from a year before. It has 5 branches.
Updated Oct 11, 2026 · numbers as of June 30, 2026
Total assets
$136M
-11.7% in a year · -1.3% in a quarter
Deposits
$114M
-11.3% in a year · -1.9% in a quarter
Loans
$73.5M
-16.7% in a year · -0.3% in a quarter
Profit so far
$780K
Jan 1 to Jun 30, 2026 · -8.9% in a year
Capital ratio
17.72%
+2.92 pts in a year
Return on assets
1.13%
+0.04 pts in a year
Facts
- Type
- State nonmember bank
- Head office
- 1012 W Broadway Blvd, Johnston City, IL, 62951
- County
- Williamson
- Holding company
- Southern Il Bancshares Inc
- Established
- Sep 10, 1999
- Employees
- 25
- Branches
- 5
- Website
- www.southernillinoisbank.com
- Id
- b35229
Quarter by quarter
September 30, 1999 to June 30, 2026
Assets, deposits and loans
Each quarter end, US dollars
Profit by quarter
Net income of each quarter, the last 12
Ratios
Percent. Return on assets and net interest margin are yearly rates.
Branches
5 offices as of June 30, 2026, holding $114.1 million in deposits
Branch map
Every branch, sized by its deposits
| State | Branches | Deposits | Share |
|---|---|---|---|
| Illinois | 5 | $114M | 100.0% |
| Largest branches | Place | Deposits |
|---|---|---|
| West Frankfort Branch | West Frankfort, IL | $63.6M |
| Southern Illinois Bank (main office) | Johnston City, IL | $22.1M |
| Zeigler Branch | Zeigler, IL | $12.5M |
| Thompsonville Branch | Thompsonville, IL | $12.0M |
| Herrin Branch | Herrin, IL | $4.0M |
Related pages
Questions and answers
How big is Southern Illinois Bank?
$136.5 million in total assets and $114.1 million in deposits as of June 30, 2026, with assets down 11.7% from a year before. Its loans were $73.5 million.
How many branches does Southern Illinois Bank have?
5 branches in Illinois as of June 30, 2026.
Is Southern Illinois Bank profitable?
Yes: it earned $780,000 from January 1 to June 30, 2026 (down 8.9% from the same months a year before). Its return on assets was 1.13% a year; about 1% is typical.
Who owns Southern Illinois Bank?
Southern Illinois Bank is owned by Southern Il Bancshares Inc, its holding company.
Official public data from the reports every insured bank files each quarter. Profit so far runs from January 1 to the quarter end. Branch deposits are counted once a year, as of June 30. New quarters appear about two months after the quarter ends.