Record · Bank
First Interstate Bank
First Interstate Bank held $25.8 billion in total assets as of June 30, 2026, according to the FDIC.
An FDIC-insured bank headquartered in Billings, Montana, with $25.8 billion in total assets at June 30, 2026: the 83rd largest of 4,212 banks.
First Interstate Bank, June 30, 2026
- $25.8 billion
- Total assets
- $25,794,971,000
- 83rd of 4,212 banks nationally and 2nd of 35 headquartered in Montana.
- $21.7 billion
- Total deposits
- $21,734,129,000
- 83rd of 4,212 banks nationally and 2nd of 35 headquartered in Montana; 0.1% of the deposits of all 4,212 banks that reported.
- $91.1 million
- Net income, the quarter
- $91,066,000
- The quarter ending June 30, 2026, as the bank reported it.
- 1.2%
- Return on assets
- Annualized net income over average assets, the FDIC’s own ratio.
- 274
- Offices
- In 10 states, as the FDIC's office file lists them.
- January 1, 1934
- Insured since
- Established October 9, 1916.
First Interstate Bank reported $25.8 billion in total assets at June 30, 2026, against $298.2 million at March 31, 1984
Total assets at each quarter’s end from the bank’s Call Report, as the FDIC publishes them, in each quarter’s own dollars.
Dollars are each quarter’s own, not adjusted for inflation. A merger adds the acquired bank’s assets in the quarter it takes effect.
Source: The FDIC
About this chart
The figures
| Quarter | Total assets | Total deposits |
|---|---|---|
| March 31, 1984 | $298.2 million | $224.6 million |
| June 30, 1984 | $316.8 million | $242.9 million |
| September 30, 1984 | $321.2 million | $248.2 million |
| December 31, 1984 | $361.0 million | $254.4 million |
| March 31, 1985 | $295.4 million | $251.4 million |
| June 30, 1985 | $290.0 million | $256.1 million |
| September 30, 1985 | $290.0 million | $256.1 million |
| December 31, 1985 | $298.5 million | $257.4 million |
| March 31, 1986 | $308.9 million | $257.4 million |
| June 30, 1986 | $306.7 million | $253.4 million |
| September 30, 1986 | $313.0 million | $267.8 million |
| December 31, 1986 | $324.4 million | $269.8 million |
| March 31, 1987 | $303.8 million | $261.4 million |
| June 30, 1987 | $301.8 million | $262.5 million |
| September 30, 1987 | $301.0 million | $257.0 million |
| December 31, 1987 | $312.1 million | $268.4 million |
| March 31, 1988 | $282.5 million | $227.2 million |
| June 30, 1988 | $289.2 million | $253.4 million |
| September 30, 1988 | $292.2 million | $249.8 million |
| December 31, 1988 | $281.8 million | $228.9 million |
| March 31, 1989 | $296.7 million | $245.3 million |
| June 30, 1989 | $268.2 million | $225.4 million |
| September 30, 1989 | $286.2 million | $228.4 million |
| December 31, 1989 | $302.1 million | $239.3 million |
| March 31, 1990 | $283.9 million | $227.5 million |
| June 30, 1990 | $270.6 million | $221.4 million |
| September 30, 1990 | $281.4 million | $223.2 million |
| December 31, 1990 | $296.6 million | $235.4 million |
| March 31, 1991 | $275.5 million | $219.0 million |
| June 30, 1991 | $281.5 million | $223.3 million |
| September 30, 1991 | $294.1 million | $240.2 million |
| December 31, 1991 | $318.4 million | $254.6 million |
| March 31, 1992 | $300.7 million | $244.8 million |
| June 30, 1992 | $297.1 million | $240.8 million |
| September 30, 1992 | $320.6 million | $250.3 million |
| December 31, 1992 | $707.5 million | $622.7 million |
| March 31, 1993 | $686.9 million | $590.5 million |
| June 30, 1993 | $703.4 million | $606.8 million |
| September 30, 1993 | $724.0 million | $613.7 million |
| December 31, 1993 | $774.9 million | $654.1 million |
| March 31, 1994 | $742.2 million | $624.8 million |
| June 30, 1994 | $764.2 million | $620.4 million |
| September 30, 1994 | $780.5 million | $630.6 million |
| December 31, 1994 | $792.0 million | $646.6 million |
| March 31, 1995 | $789.3 million | $633.8 million |
| June 30, 1995 | $845.4 million | $693.7 million |
| September 30, 1995 | $937.2 million | $760.2 million |
| December 31, 1995 | $981.5 million | $786.7 million |
| March 31, 1996 | $966.3 million | $781.2 million |
| June 30, 1996 | $993.1 million | $773.7 million |
| September 30, 1996 | $997.7 million | $803.3 million |
| December 31, 1996 | $1.1 billion | $847.2 million |
| March 31, 1997 | $1.0 billion | $834.4 million |
| June 30, 1997 | $1.4 billion | $1.1 billion |
| September 30, 1997 | $1.4 billion | $1.1 billion |
| December 31, 1997 | $1.5 billion | $1.2 billion |
| March 31, 1998 | $1.5 billion | $1.2 billion |
| June 30, 1998 | $1.5 billion | $1.2 billion |
| September 30, 1998 | $1.5 billion | $1.2 billion |
| December 31, 1998 | $1.6 billion | $1.3 billion |
| March 31, 1999 | $1.6 billion | $1.3 billion |
| June 30, 1999 | $1.7 billion | $1.3 billion |
| September 30, 1999 | $1.8 billion | $1.3 billion |
| December 31, 1999 | $1.7 billion | $1.3 billion |
| March 31, 2000 | $1.7 billion | $1.4 billion |
| June 30, 2000 | $1.8 billion | $1.3 billion |
| September 30, 2000 | $1.8 billion | $1.4 billion |
| December 31, 2000 | $1.8 billion | $1.4 billion |
| March 31, 2001 | $1.8 billion | $1.5 billion |
| June 30, 2001 | $1.9 billion | $1.5 billion |
| September 30, 2001 | $1.9 billion | $1.6 billion |
| December 31, 2001 | $3.3 billion | $2.7 billion |
| March 31, 2002 | $3.2 billion | $2.7 billion |
| June 30, 2002 | $3.3 billion | $2.7 billion |
| September 30, 2002 | $3.5 billion | $2.9 billion |
| December 31, 2002 | $3.5 billion | $2.9 billion |
| March 31, 2003 | $3.7 billion | $3.0 billion |
| June 30, 2003 | $3.7 billion | $3.0 billion |
| September 30, 2003 | $3.8 billion | $3.1 billion |
| December 31, 2003 | $3.9 billion | $3.2 billion |
| March 31, 2004 | $3.9 billion | $3.1 billion |
| June 30, 2004 | $4.0 billion | $3.2 billion |
| September 30, 2004 | $4.0 billion | $3.2 billion |
| December 31, 2004 | $4.2 billion | $3.3 billion |
| March 31, 2005 | $4.2 billion | $3.3 billion |
| June 30, 2005 | $4.3 billion | $3.3 billion |
| September 30, 2005 | $4.4 billion | $3.5 billion |
| December 31, 2005 | $4.5 billion | $3.5 billion |
| March 31, 2006 | $4.6 billion | $3.5 billion |
| June 30, 2006 | $4.8 billion | $3.5 billion |
| September 30, 2006 | $4.8 billion | $3.6 billion |
| December 31, 2006 | $4.9 billion | $3.7 billion |
| March 31, 2007 | $4.9 billion | $3.9 billion |
| June 30, 2007 | $4.9 billion | $4.0 billion |
| September 30, 2007 | $5.0 billion | $4.0 billion |
| December 31, 2007 | $5.1 billion | $4.0 billion |
| March 31, 2008 | $5.2 billion | $4.1 billion |
| June 30, 2008 | $5.3 billion | $4.1 billion |
| September 30, 2008 | $5.4 billion | $4.3 billion |
| December 31, 2008 | $5.5 billion | $4.4 billion |
| March 31, 2009 | $5.7 billion | $4.7 billion |
| June 30, 2009 | $5.7 billion | $4.7 billion |
| September 30, 2009 | $6.9 billion | $5.7 billion |
| December 31, 2009 | $7.1 billion | $5.8 billion |
| March 31, 2010 | $7.2 billion | $5.8 billion |
| June 30, 2010 | $7.2 billion | $5.8 billion |
| September 30, 2010 | $7.3 billion | $5.9 billion |
| December 31, 2010 | $7.5 billion | $5.9 billion |
| March 31, 2011 | $7.4 billion | $5.9 billion |
| June 30, 2011 | $7.2 billion | $5.8 billion |
| September 30, 2011 | $7.3 billion | $5.9 billion |
| December 31, 2011 | $7.3 billion | $5.8 billion |
| March 31, 2012 | $7.4 billion | $5.9 billion |
| June 30, 2012 | $7.3 billion | $5.9 billion |
| September 30, 2012 | $7.4 billion | $6.0 billion |
| December 31, 2012 | $7.7 billion | $6.2 billion |
| March 31, 2013 | $7.4 billion | $6.0 billion |
| June 30, 2013 | $7.3 billion | $5.9 billion |
| September 30, 2013 | $7.5 billion | $6.1 billion |
| December 31, 2013 | $7.5 billion | $6.1 billion |
| March 31, 2014 | $7.6 billion | $6.1 billion |
| June 30, 2014 | $7.6 billion | $6.2 billion |
| September 30, 2014 | $7.8 billion | $6.4 billion |
| December 31, 2014 | $8.6 billion | $7.0 billion |
| March 31, 2015 | $8.5 billion | $7.0 billion |
| June 30, 2015 | $8.4 billion | $6.8 billion |
| September 30, 2015 | $8.6 billion | $7.0 billion |
| December 31, 2015 | $8.7 billion | $7.1 billion |
| March 31, 2016 | $8.7 billion | $7.1 billion |
| June 30, 2016 | $8.6 billion | $7.0 billion |
| September 30, 2016 | $8.9 billion | $7.3 billion |
| December 31, 2016 | $9.0 billion | $7.4 billion |
| March 31, 2017 | $9.0 billion | $7.3 billion |
| June 30, 2017 | $8.9 billion | $7.3 billion |
| September 30, 2017 | $12.1 billion | $9.9 billion |
| December 31, 2017 | $12.2 billion | $9.9 billion |
| March 31, 2018 | $12.2 billion | $10.0 billion |
| June 30, 2018 | $12.2 billion | $9.9 billion |
| September 30, 2018 | $12.4 billion | $10.1 billion |
| December 31, 2018 | $13.2 billion | $10.7 billion |
| March 31, 2019 | $13.4 billion | $10.8 billion |
| June 30, 2019 | $14.4 billion | $11.5 billion |
| September 30, 2019 | $14.6 billion | $11.8 billion |
| December 31, 2019 | $14.6 billion | $11.7 billion |
| March 31, 2020 | $14.4 billion | $11.6 billion |
| June 30, 2020 | $16.4 billion | $13.3 billion |
| September 30, 2020 | $17.0 billion | $13.9 billion |
| December 31, 2020 | $17.6 billion | $14.2 billion |
| March 31, 2021 | $18.4 billion | $15.1 billion |
| June 30, 2021 | $18.9 billion | $15.6 billion |
| September 30, 2021 | $19.3 billion | $16.0 billion |
| December 31, 2021 | $19.6 billion | $16.3 billion |
| March 31, 2022 | $33.1 billion | $28.1 billion |
| June 30, 2022 | $32.0 billion | $26.9 billion |
| September 30, 2022 | $31.3 billion | $25.9 billion |
| December 31, 2022 | $32.2 billion | $25.1 billion |
| March 31, 2023 | $31.6 billion | $24.3 billion |
| June 30, 2023 | $30.9 billion | $23.8 billion |
| September 30, 2023 | $30.5 billion | $23.8 billion |
| December 31, 2023 | $30.6 billion | $23.6 billion |
| March 31, 2024 | $30.1 billion | $23.1 billion |
| June 30, 2024 | $30.2 billion | $23.1 billion |
| September 30, 2024 | $29.5 billion | $23.1 billion |
| December 31, 2024 | $29.1 billion | $23.3 billion |
| March 31, 2025 | $28.2 billion | $23.0 billion |
| June 30, 2025 | $27.5 billion | $23.0 billion |
| September 30, 2025 | $27.3 billion | $22.9 billion |
| December 31, 2025 | $26.6 billion | $22.4 billion |
| March 31, 2026 | $26.4 billion | $22.2 billion |
| June 30, 2026 | $25.8 billion | $21.7 billion |
Its offices, by state
| State | Offices | Full-service |
|---|---|---|
| South Dakota | 46 | 45 |
| Iowa | 45 | 45 |
| Montana | 44 | 43 |
| Oregon | 33 | 33 |
| Nebraska | 29 | 28 |
| Idaho | 20 | 20 |
| Colorado | 19 | 19 |
| Washington | 17 | 17 |
| Wyoming | 15 | 15 |
| Missouri | 6 | 6 |
Its history
Institution events the FDIC recorded for the bank, newest first: renames, mergers, acquisitions and charter changes. Branch openings and closings are not listed here.
| Date | Event | With |
|---|---|---|
| February 1, 2022 | Absorbtion - Without Assistance | Great Western Bank |
| February 1, 2022 | Participated in Absorbtion/Consolidation/Merger | Great Western Bank |
| April 8, 2019 | Absorbtion - Without Assistance | Idaho Independent Bank |
| April 8, 2019 | Participated in Absorbtion/Consolidation/Merger | Idaho Independent Bank |
| April 8, 2019 | Absorbtion - Without Assistance | Community 1st Bank |
| April 8, 2019 | Participated in Absorbtion/Consolidation/Merger | Community 1st Bank |
| November 10, 2018 | Merger -Without Assistance | Inland Northwest Bank |
| November 10, 2018 | Participated in Absorbtion/Consolidation/Merger | Inland Northwest Bank |
| August 12, 2017 | Merger -Without Assistance | Bank of the Cascades |
| August 12, 2017 | Participated in Absorbtion/Consolidation/Merger | Bank of the Cascades |
| August 13, 2016 | Merger -Without Assistance | Flathead Bank of Bigfork, Montana |
| August 13, 2016 | Participated in Absorbtion/Consolidation/Merger | Flathead Bank of Bigfork, Montana |
| July 25, 2015 | Merger -Without Assistance | United Bank |
| July 25, 2015 | Participated in Absorbtion/Consolidation/Merger | United Bank |
| October 18, 2014 | Merger -Without Assistance | Mountain West Bank, National Association |
| October 18, 2014 | Participated in Absorbtion/Consolidation/Merger | Mountain West Bank, National Association |
| September 26, 2009 | Merger -Without Assistance | First Western Bank |
| September 26, 2009 | Participated in Absorbtion/Consolidation/Merger | First Western Bank |
| September 26, 2009 | Merger -Without Assistance | The First Western Bank Sturgis |
| September 26, 2009 | Participated in Absorbtion/Consolidation/Merger | The First Western Bank Sturgis |
| January 27, 2003 | Merger -Without Assistance | The United States National Bank of Red Lodge |
| January 27, 2003 | Participated in Absorbtion/Consolidation/Merger | The United States National Bank of Red Lodge |
| November 10, 2001 | Merger -Without Assistance | First Interstate Bank |
| November 10, 2001 | Participated in Absorbtion/Consolidation/Merger | First Interstate Bank |
| September 1, 1999 | Merger -Without Assistance | Security State Bank and Trust Company |
| September 1, 1999 | Participated in Absorbtion/Consolidation/Merger | Security State Bank and Trust Company |
| December 23, 1997 | Merger -Without Assistance | First Interstate Bank, FSB |
| December 23, 1997 | Participated in Absorbtion/Consolidation/Merger | First Interstate Bank, FSB |
| June 21, 1997 | Merger -Without Assistance | First Interstate Bank of Montana, National Association |
| June 21, 1997 | Change in Legal Name (FO or BR) | The First Interstate Bank of Commerce |
| June 21, 1997 | Participated in Absorbtion/Consolidation/Merger | First Interstate Bank of Montana, National Association |
| June 21, 1997 | Merger -Without Assistance | Mountain Bank |
| June 21, 1997 | Participated in Absorbtion/Consolidation/Merger | Mountain Bank |
| September 23, 1995 | Merger -Without Assistance | The First National Park Bank in Livingston |
| September 23, 1995 | Participated in Absorbtion/Consolidation/Merger | The First National Park Bank in Livingston |
| May 5, 1995 | Merger -Without Assistance | First Citizens Bank of Bozeman |
| May 5, 1995 | Participated in Absorbtion/Consolidation/Merger | First Citizens Bank of Bozeman |
| December 1, 1992 | Merger -Without Assistance | First Interstate Bank of Billings Heights |
| December 1, 1992 | Participated in Absorbtion/Consolidation/Merger | First Interstate Bank of Billings Heights |
| December 1, 1992 | Merger -Without Assistance | First Interstate Bank of West Billings |
| December 1, 1992 | Participated in Absorbtion/Consolidation/Merger | First Interstate Bank of West Billings |
| December 1, 1992 | Merger -Without Assistance | First Interstate Bank of Colstrip |
| December 1, 1992 | Participated in Absorbtion/Consolidation/Merger | First Interstate Bank of Colstrip |
| December 1, 1992 | Merger -Without Assistance | First Interstate Bank of Hardin |
| December 1, 1992 | Participated in Absorbtion/Consolidation/Merger | First Interstate Bank of Hardin |
| December 1, 1992 | Merger -Without Assistance | First Interstate Bank of Miles City |
| December 1, 1992 | Participated in Absorbtion/Consolidation/Merger | First Interstate Bank of Miles City |
| December 1, 1992 | Merger -Without Assistance | First Interstate Bank of Missoula, National Association |
| December 1, 1992 | Participated in Absorbtion/Consolidation/Merger | First Interstate Bank of Missoula, National Association |
| December 1, 1992 | Change in Chartering Agency | First Interstate Bank of Billings, National Association |
The FDIC’s entry
- FDIC certificate number
- 1105
- Charter class
- SM
- Chartered by
- STATE
- Primary regulator
- FED
- Holding company
- FIRST INTRST BANCSYSTEM
- Specialization
- Commercial Lending Specialization
- Community bank
- No
- County
- Yellowstone
- Website
- www.firstinterstatebank.com
Rankings this appears in
- No. 83 Banks by deposits
- No. 83 Largest banks in the US by total assets
Sources
- NCUA 5300 Call Report — quarterly data (every credit union, every quarter from March 1994) — National Credit Union Administration · U.S. Government work · retrieved September 27, 2026
- FDIC failures — every bank failure and assistance transaction since 1934 — Federal Deposit Insurance Corporation · Public domain — U.S. Government work
- FDIC summary — insured institutions, offices, assets and deposits by state and year since 1934 · Public domain — U.S. Government work
- FDIC BankFind — institutions (every charter the FDIC has insured, active and inactive) · Public domain — U.S. Government work · retrieved October 17, 2026
- NCUA credit-union sites — Credit Union Branch Information (the newest quarter) — National Credit Union Administration · U.S. Government work · retrieved September 27, 2026
- FDIC BankFind — locations (every current office of an FDIC-insured institution) — Federal Deposit Insurance Corporation · Public domain — U.S. Government work · retrieved September 30, 2026
- FDIC Summary of Deposits — every office's deposits at June 30, 1994 to the newest survey · Public domain — U.S. Government work · retrieved September 27, 2026
- Census Bureau population estimates — nation and states, with components of change — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
Compiled automatically from NCUA 5300 Call Report — quarterly data (every credit union, every quarter from March 1994), FDIC failures — every bank failure and assistance transaction since 1934, FDIC summary — insured institutions, offices, assets and deposits by state and year since 1934, FDIC BankFind — institutions (every charter the FDIC has insured, active and inactive), NCUA credit-union sites — Credit Union Branch Information (the newest quarter), FDIC BankFind — locations (every current office of an FDIC-insured institution), FDIC Summary of Deposits — every office's deposits at June 30, 1994 to the newest survey and Census Bureau population estimates — nation and states, with components of change by a checked SQL query · Editor: Kian O'Connor · How this site is built
Data retrieved