Branch Network
First Southern Bank Locations & Branches Columbia, Mississippi
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First Southern Bank operates 6 branches from its headquarters in Columbia, MS, .
First Southern Bank branch network
All 6 branches are in MISSISSIPPI, across 5 cities. Columbia, MS has the most of its branches, 2. Its largest office by deposits is its main office in Columbia, MS, with $154.0M (56.7% of its branch deposits). It had the same number of branches on June 30, 2025.
First Southern Bank at a glance
It reports no CET1 ratio; its Tier 1 leverage ratio was 10.57% at Q2 2026, above the 9% community bank leverage ratio requirement for being considered well capitalized.
- Total assets, Q2 2026
- $317.3M
- Tier 1 leverage ratio, Q2 2026
- 10.57%
- Deposit insurance
- FDIC
- Regulator
- FDIC
- Established
- 1960
Full financial profile · Is First Southern Bank safe? · Routing number
Deposit market share
Share of all FDIC-insured deposits held in each area, from the June 30, 2026 Summary of Deposits. Rank 1 is the largest holder. Shares are by bank charter, not by holding company.
| Area | Rank | Deposit share | Deposits |
|---|---|---|---|
| City: Columbia, MS (2 branches) | 3 of 5 | 24.7% | $164.9M |
| State: MS (6 branches) | 46 of 80 | 0.3% | $271.4M |
Ranked by total assets among banks headquartered in the state: Largest banks in Mississippi.
Share by county and metro area
First Southern Bank's share of FDIC-insured deposits in the counties and metro areas where it has branches, from the June 30, 2026 Summary of Deposits. Up to the ten largest of each are shown, by the bank's deposits. Rank 1 is the largest holder. Banks only: credit unions are not in the Summary of Deposits.
Counties
| County | Rank | Deposit share | Deposits | County total |
|---|---|---|---|---|
| Marion, MS (2 branches) | 3 of 5 | 24.7% | $164.9M | $668.5M |
| Pearl River, MS (1 branch) | 6 of 7 | 3.9% | $39.0M | $988.7M |
| Perry, MS (1 branch) | 3 of 3 | 19.8% | $31.6M | $160.1M |
| Forrest, MS (1 branch) | 9 of 14 | 1.3% | $26.8M | $2.06B |
| Lamar, MS (1 branch) | 16 of 16 | 0.5% | $9.1M | $1.90B |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| Hattiesburg, MS (3 branches) | 15 of 22 | 1.5% | $67.5M | $4.52B |
| Picayune, MS (1 branch) | 6 of 7 | 3.9% | $39.0M | $988.7M |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| First Southern Bank (main office) | Columbia, MS | 39429 | $154.0M |
| Picayune Branch | Picayune, MS | 39466 | $39.0M |
| Richton Branch | Richton, MS | 39476 | $31.6M |
| Petal Branch | Petal, MS | 39465 | $26.8M |
| Second Street Branch | Columbia, MS | 39429 | $11.0M |
| Oak Grove Branch | Hattiesburg, MS | 39402 | $9.1M |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 31158) · FFIEC NIC profile (RSSD 954671)