First State Bank
Mendota, Illinois, Lasalle County
$1.6B in total assets, the 739th largest of 4,309 US banks and 44th of 328 headquartered in Illinois.
- FDIC certificate
- 15752
- Established
- 1940
- Owned by
- Tri-county Financial Group Inc
- Primary regulator
- FDIC
- Website
- WWW.FIRSTSTATEBANK.BIZ
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 | $1.6B | 22% | $2.7B | |
| Loans | $1.3B | 28% | $2.1B | |
| Deposits | $1.3B | 20% | $2.3B | |
| Return on assets | 1.10% | 22% | 1.42% | |
| Net interest margin | 3.78% | 63% | 3.53% | |
| Efficiency ratio | 63.4% | 80% | 51.0% | |
| Equity to assets | 11.04% | 78% | 9.97% | |
| Loans to deposits | 99% | 90% | 86% |
Growth
Total assets grew 2.6% a year over the last 5 years and 5.4% a year over 10 years, including 1 acquisition in the last 10 years.
Acquisitions
| Closed | Acquired bank | Assets at acquisition |
|---|---|---|
| Mar 2020 | H. F. Gehant Banking Co. West Brooklyn, IL | $59M |
| Jun 2013 | Lincoln State Bank, S.B. Rochelle, IL | $50M |
| Jun 2012 | Farmers' and Traders' State Bank Shabbona, IL | $43M |
| Feb 2011 | Valley Community Bank Saint Charles, IL | $124M |
| Nov 1998 | Farmers State Bank of McNabb Mcnabb, IL, an affiliate under the same holding company | $29M |
Where they operate
20 branches in 9 counties.
Largest markets by deposits
| County | Deposits | Market share | Rank |
|---|---|---|---|
| Lasalle County, IL | $613M | 14.9% | 2 of 22 |
| Dekalb County, IL | $202M | 6.8% | 5 of 9 |
| Kane County, IL | $129M | 0.8% | 19 of 31 |
| Mclean County, IL | $104M | 2.3% | 8 of 26 |
| Bureau County, IL | $87M | 6.9% | 7 of 11 |
| Ogle County, IL | $68M | 4.8% | 7 of 11 |
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 loss of 1 branch since 2016 (21 to 20, −4.8%). 3 opened, 1 acquired, 5 closed or sold.
| Period | What happened | Opened or acquired | Closed or sold | Net change | Branches at end |
|---|---|---|---|---|---|
| Start of 2016 | Starting point | 21 | |||
| 2016 | Opened Princeton | 1 | 0 | +1 | 22 |
| 2017 | Closed Carol Stream and Naperville | 0 | 2 | −2 | 20 |
| 2019 | Opened PrincetonClosed Batavia and Princeton | 1 | 2 | −1 | 19 |
| 2020 | Acquired H. F. Gehant Banking Co.Closed Saint Charles | 1 | 1 | 0 | 19 |
| 2022 | Opened Champaign | 1 | 0 | +1 | 20 |
Balance sheet and earnings
Loans by type
| Type | Share | This bank | Peers |
|---|---|---|---|
| 1-4 family residential | 32% | 14% | |
| Commercial real estate | 26% | 28% | |
| Multifamily | 14% | 9% | |
| Farmland | 13% | 3% | |
| Business (C&I) | 6% | 26% | |
| Agricultural | 5% | 1% | |
| Construction and land | 3% | 7% | |
| Consumer | 1% | 6% | |
| Other | 0% | 6% |
Deposits by type
| Type | Share | This bank | Peers |
|---|---|---|---|
| Other interest-bearing | 48% | 55% | |
| Time deposits | 37% | 24% | |
| Noninterest-bearing | 14% | 21% |
Brokered deposits are 0.8% of deposits (peers 8.0%).
Return on assets
Trailing four quarters, with the peer median.
Credit and capital
| This bank | Peer median | |
|---|---|---|
| Noncurrent loans | 0.47% | 0.52% |
| Net charge-offs, annualized | 0.00% | 0.08% |
| Reserves to loans | 1.15% | 1.07% |
| Leverage ratio | 10.93% | 10.08% |
Noncurrent loans exclude government-guaranteed portions.
Related banks
Similar size in Illinois
Largest competitors in Lasalle 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-state-bank-mendota-il