Bank of South Texas
Mcallen, Texas, Hidalgo County
$175M in total assets, the 3,195th largest of 4,309 US banks and 267th of 352 headquartered in Texas.
- FDIC certificate
- 26727
- Established
- 1986
- Owned by
- No holding company
- Primary regulator
- FDIC
- Website
- www.bankofsouthtexas.com
At a glance
Compared with 218 banks headquartered in Texas with $100 million to $1 billion in assets, as of June 30, 2026.
| Measure | This bank | Percentile | Peer range, middle 90% | Peer median |
|---|---|---|---|---|
| Total assets | $175M | 20% | $336M | |
| Loans | $126M | 32% | $191M | |
| Deposits | $141M | 17% | $289M | |
| Return on assets | 1.34% | 44% | 1.47% | |
| Net interest margin | 6.98% | 98% | 4.20% | |
| Efficiency ratio | 79.1% | 88% | 61.4% | |
| Equity to assets | 18.18% | 97% | 10.91% | |
| Loans to deposits | 89% | 86% | 72% |
Growth
Total assets grew 5.0% a year over the last 5 years and 4.2% a year over 10 years, without acquisitions.
Acquisitions
| Closed | Acquired bank | Assets at acquisition |
|---|---|---|
| Jul 2003 | State Bank of Kingsville Kingsville, TX | $32M |
Where they operate
8 branches in 4 counties.
Largest markets by deposits
| County | Deposits | Market share | Rank |
|---|---|---|---|
| Hidalgo County, TX | $85M | 0.5% | 15 of 20 |
| Kleberg County, TX | $32M | 5.6% | 5 of 6 |
| Jim Hogg County, TX | $23M | 18.1% | 2 of 4 |
| Cameron County, TX | $1M | 0.0% | 19 of 19 |
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 2 branches since 2016 (6 to 8, +33.3%). 2 opened, 0 acquired, 0 closed or sold.
| Period | What happened | Opened or acquired | Closed or sold | Net change | Branches at end |
|---|---|---|---|---|---|
| Start of 2016 | Starting point | 6 | |||
| 2022 | Opened Edinburg | 1 | 0 | +1 | 7 |
| 2026 through Q2 | Opened Olmito | 1 | 0 | +1 | 8 |
Balance sheet and earnings
Loans by type
| Type | Share | This bank | Peers |
|---|---|---|---|
| Construction and land | 44% | 11% | |
| Commercial real estate | 23% | 28% | |
| 1-4 family residential | 23% | 27% | |
| Business (C&I) | 7% | 14% | |
| Consumer | 1% | 5% | |
| Farmland | 1% | 7% | |
| Multifamily | 1% | 2% | |
| Agricultural | 0% | 5% | |
| Other | 0% | 1% |
Deposits by type
| Type | Share | This bank | Peers |
|---|---|---|---|
| Time deposits | 52% | 29% | |
| Noninterest-bearing | 34% | 30% | |
| Other interest-bearing | 15% | 41% |
Brokered deposits are 0.0% of deposits (peers 1.9%).
Return on assets
Trailing four quarters, with the peer median.
Credit and capital
| This bank | Peer median | |
|---|---|---|
| Noncurrent loans | 0.23% | 0.32% |
| Net charge-offs, annualized | 0.00% | 0.01% |
| Reserves to loans | 1.15% | 1.23% |
| Leverage ratio | 16.63% | 11.60% |
Noncurrent loans exclude government-guaranteed portions.
Related banks
Similar size in Texas
Largest competitors in Hidalgo County, TX
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/south-texas