FDIC-insured bank
American Bank & Trust — Sioux Falls, SD
Bank headquartered in Sioux Falls, South Dakota, part of LEACKCO BANK HOLDING CO INC.
Source: FDIC BankFind Suite, data as of June 30, 2026, fetched September 5, 2026
Headquarters and contact
| Address | 6810 S Minnesota Ave Sioux Falls, SD 57108 |
| County | Lincoln |
| Metro area | Sioux Falls, SD |
| Website | www.abt.bank |
| Phone | not published in FDIC data, see the bank's website |
FDIC record
| FDIC Certificate | 1117 |
| Federal Reserve RSSD ID | 275358 |
| Status | Active |
| Charter class | NM (STATE) |
| Holding company | LEACKCO BANK HOLDING CO INC |
| Domestic offices | 20 |
| Financials as of | June 30, 2026 |
How to find your American Bank & Trust 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.abt.bank.
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Offices nearest to headquarters
| American Bank & Trust main office Sioux Falls, SD |
6810 S Minnesota Ave, 57108 |
| Sioux Falls 41St & Sycamore Branch Sioux Falls, SD |
3405 S Sycamore Ave, 57110 |
| Sioux Falls River Centre Branch Sioux Falls, SD |
200 E 10th St, 57104 |
| Tea Sd Branch Tea, SD |
801 East Gateway Lane, 57064 |
| 26Th Street Sioux Falls Sd Branch Sioux Falls, SD |
8401 West 26th Street, 57106 |
| Lennox Branch Lennox, SD |
214 S Main St, 57039 |
| Worthington Minnesota Branch Worthington, MN |
1206 Oxford St, 56187 |
| Carthage Branch Carthage, SD |
201 Main St W, 57323 |
| De Smet Branch De Smet, SD |
212 Calumet Ave Se, 57231 |
| Iroquois Branch Iroquois, SD |
201 S Ottowa St, 57353 |
| Watertown Branch Watertown, SD |
1715 1st Ave Ne, 57201 |
| Stickney Br Stickney, SD |
221 Main St, 57375 |
20 offices in total. Browse them by city through the state pages.
Where American Bank & Trust has offices
Cities with the most American Bank & Trust offices
Other banks headquartered in Sioux Falls
| Citibank, National Association | $1.98 trillion |
| Wells Fargo Bank, National Association | $1.91 trillion |
| The Bancorp Bank, National Association | $9.21 billion |
| Pathward, National Association | $7.31 billion |
| First PREMIER Bank | $3.64 billion |
| Sunrise Banks, National Association | $2.78 billion |
| The First National Bank in Sioux Falls | $2.12 billion |
| Plains Commerce Bank | $1.30 billion |
Largest banks headquartered elsewhere in South Dakota
| Dacotah Bank Aberdeen | $4.92 billion |
| First Bank & Trust Brookings | $4.78 billion |
| First Dakota National Bank Yankton | $3.39 billion |
| First National Bank Fort Pierre | $2.03 billion |
| BankWest, Inc. Pierre | $1.93 billion |
| First Savings Bank Beresford | $1.59 billion |
| CorTrust Bank National Association Mitchell | $1.56 billion |
| 1st Financial Bank USA Dakota Dunes | $1.40 billion |
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