First State Bank
Mendota, IL · Owner: Tri-County Financial Group, Inc.
$1.6B
total assets, June 30, 2026
$1.6B
total assets, June 30, 2026
First State Bank is a state nonmember bank based in Mendota, IL, owned by Tri-County Financial Group, Inc. (TYFG). As of June 30, 2026 it held $1.6 billion in assets and $1.3 billion in deposits; assets were down 0.1% from a year before. It has 19 branches.
Updated Oct 11, 2026 · numbers as of June 30, 2026
Total assets
$1.6B
-0.1% in a year · -1.2% in a quarter
Deposits
$1.3B
+2.3% in a year · -0.9% in a quarter
Loans
$1.3B
-1.0% in a year · -1.8% in a quarter
Profit so far
$9.2M
Jan 1 to Jun 30, 2026 · +33.7% in a year
Capital ratio
10.94%
+0.60 pts in a year
Return on assets
1.16%
+0.27 pts in a year
Facts
- Type
- State nonmember bank
- Head office
- 706 Washington St, Mendota, IL, 61342
- County
- Lasalle
- Holding company
- Tri-County Financial Group, Inc. (TYFG)
- Established
- Jul 6, 1940
- Employees
- 279
- Branches
- 19
- Website
- www.firststatebank.biz
- Id
- b15752
Quarter by quarter
March 31, 1984 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
19 offices as of June 30, 2026, holding $1.3 billion in deposits
Branch map
Every branch, sized by its deposits
| State | Branches | Deposits | Share |
|---|---|---|---|
| Illinois | 19 | $1.3B | 100.0% |
| Largest branches | Place | Deposits |
|---|---|---|
| First State Bank (main office) | Mendota, IL | $391M |
| Sycamore Branch | Sycamore, IL | $158M |
| Ottawa Branch | Ottawa, IL | $104M |
| Bloomington Branch | Bloomington, IL | $104M |
| Rochelle Branch | Rochelle, IL | $68.3M |
| Princeton Branch | Princeton, IL | $66.7M |
| Peru Branch | Peru, IL | $64.4M |
| St. Charles West Branch | Saint Charles, IL | $60.2M |
| Streator Branch | Streator, IL | $53.2M |
| Mcnabb Branch | Mcnabb, IL | $50.8M |
Related pages
Questions and answers
How big is First State Bank?
$1.6 billion in total assets and $1.3 billion in deposits as of June 30, 2026, with assets down 0.1% from a year before. Its loans were $1.3 billion.
How many branches does First State Bank have?
19 branches in Illinois as of June 30, 2026.
Is First State Bank profitable?
Yes: it earned $9.18 million from January 1 to June 30, 2026 (up 33.7% from the same months a year before). Its return on assets was 1.16% a year; about 1% is typical.
Who owns First State Bank?
First State Bank is owned by Tri-County Financial Group, Inc., its holding company, which is listed as TYFG.
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.