Bank American Bank & Trust
American Bank & Trust is a federally insured bank based in Sioux Falls, South Dakota.
- Type
- Bank
- Charter
- State-chartered commercial bank, not a Federal Reserve member
- Primary regulator
- FDIC
- Established
- January 1, 1892
- Headquarters
- Sioux Falls, SD
- FDIC certificate #
- 1117
- Fed RSSD ID
- 275358
- Holding company
- Leackco Bank Holding Co Inc
- Website
- www.abt.bank
Source: U.S. FDIC BankFind & NCUA 5300 Call Report (public data). Data sources · Data as of Q1 2026
Branches by state
American Bank & Trust operates 20 branch locations across 3 states. Select a state to drill down to its towns and individual branches.
Ownership
American Bank & Trust is owned by Leackco Bank Holding Co Inc. See the full ownership & merger history.
American Bank & Trust financial summary
Other banks in South Dakota
Federally insured banks headquartered in South Dakota, by total assets.
- Citibank, National Association $1.93T
- Wells Fargo Bank, National Association $1.85T
- The Bancorp Bank, National Association $9.9B
- Pathward, National Association $7.11B
- First Bank & Trust $4.87B
- Dacotah Bank $4.87B
- First PREMIER Bank $3.55B
- First Dakota National Bank $3.3B
Similar-size banks
Institutions close to American Bank & Trust’s $2.24B in assets.
- Texas Community Bank $2.24B
- Golden Bank, National Association $2.25B
- Central Bank $2.25B
- LCNB National Bank $2.23B
- WaterStone Bank, SSB $2.25B
- The Bank of Princeton $2.25B