FDIC-insured bank
First Southern Bank — Marion, IL
Bank headquartered in Marion, Illinois, part of MIDWEST CMTY BANCSHARES INC.
Source: FDIC BankFind Suite, data as of June 30, 2026, fetched September 5, 2026
Headquarters and contact
| Address | 300 Tower Square Plz Marion, IL 62959 |
| County | Williamson |
| Metro area | Carbondale-Marion, IL |
| Website | www.firstsouthernbank.net |
| Phone | not published in FDIC data, see the bank's website |
FDIC record
| FDIC Certificate | 15565 |
| Federal Reserve RSSD ID | 382649 |
| Status | Active |
| Charter class | NM (STATE) |
| Holding company | MIDWEST CMTY BANCSHARES INC |
| Domestic offices | 19 |
| Financials as of | June 30, 2026 |
How to find your First Southern Bank routing number
FDIC does not publish ABA routing numbers, and many banks use different routing numbers by state or by account type. The reliable places to find yours: the bottom left of a check from this bank, the "account details" screen in its online banking, or its official website at www.firstsouthernbank.net.
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Offices nearest to headquarters
| First Southern Bank main office Marion, IL |
300 Tower Square Plz, 62959 |
| Marion Mobile Branch Marion, IL |
300 Tower Square Plz, 62959 |
| Court Branch Marion, IL |
409 N Court St, 62959 |
| Carbon Branch Marion, IL |
801 N Carbon St, 62959 |
| Illinois Centre Mall Branch Marion, IL |
1303 Marathon Dr, 62959 |
| Airport Business Center Branch Marion, IL |
102 Airway Dr, 62959 |
| Herrin Security Bank Branch Herrin, IL |
114 W Monroe St, 62948 |
| Carterville Branch Carterville, IL |
111 Municipal Dr, 62918 |
| Creal Springs Facility Creal Springs, IL |
201 W Blue Ave, 62922 |
| Royalton Facility Royalton, IL |
204 S Main St, 62983 |
| Carbondale Drive Thru Branch Carbondale, IL |
1399 E Main St, 62901 |
| Carbondale Main Street Branch Carbondale, IL |
301 E Main St, 62901 |
19 offices in total. Browse them by city through the state pages.
Where First Southern Bank has offices
Cities with the most First Southern Bank offices
Other banks headquartered in Marion
| Banterra Bank | $3.36 billion |
| SouthernTrust Bank | $278.50 million |
Largest banks headquartered elsewhere in Illinois
| BMO Bank National Association Chicago | $254.97 billion |
| The Northern Trust Company Chicago | $178.57 billion |
| CIBC Bank USA Chicago | $66.50 billion |
| Busey Bank Champaign | $18.15 billion |
| Byline Bank Chicago | $9.91 billion |
| Wintrust Bank, National Association Chicago | $9.57 billion |
| Lake Forest Bank & Trust Company, National Association Lake Forest | $9.25 billion |
| First Mid Bank & Trust, National Association Mattoon | $9.14 billion |
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