Bank Branches › Illinois › McHenry County › 100 W Washington St
Full-service office · FDIC office no. 1206
BMO Bank National Association
100 W Washington St, Marengo, IL 60152
Open · June 2026
$103M
deposits, 2026
1930
established
38th
of 78 in county
5
names on the sign
| Date | Bank on the sign | Deposits | Change |
|---|---|---|---|
| Jun 30 2026 | BMO Bank National Association | $103M | +1% |
| Jun 30 2025 | BMO Bank National Association | $101M | −2% |
| Jun 30 2024 | BMO Bank National AssociationNEW NAME | $103M | +3% |
| Jun 30 2023 | BMO Harris Bank National Association | $100M | +2% |
| Jun 30 2022 | BMO Harris Bank National Association | $98.2M | +5% |
| Jun 30 2021 | BMO Harris Bank National Association | $94.0M | +8% |
| Jun 30 2020 | BMO Harris Bank National Association | $86.8M | +9% |
| Jun 30 2019 | BMO Harris Bank National Association | $79.3M | +5% |
| Jun 30 2018 | BMO Harris Bank National Association | $75.7M | +11% |
| Jun 30 2017 | BMO Harris Bank National Association | $67.9M | +11% |
| Jun 30 2016 | BMO Harris Bank National Association | $61.1M | −2% |
| Jun 30 2015 | BMO Harris Bank National Association | $62.2M | +4% |
| Jun 30 2014 | BMO Harris Bank National Association | $60.0M | −5% |
| Jun 30 2013 | BMO Harris Bank National Association | $62.9M | −9% |
| Jun 30 2012 | BMO Harris Bank National AssociationNEW NAME | $69.3M | +4% |
| Jun 30 2011 | Harris National Association | $66.8M | −11% |
| Jun 30 2010 | Harris National Association | $75.5M | −13% |
| Jun 30 2009 | Harris National Association | $86.4M | +4% |
| Jun 30 2008 | Harris National Association | $82.8M | +2% |
| Jun 30 2007 | Harris National Association | $81.4M | 0% |
| Jun 30 2006 | Harris National Association | $81.5M | +9% |
| Jun 30 2005 | Harris National AssociationNEW NAME | $74.9M | −7% |
| Jun 30 2004 | Harris Bank Marengo | $80.2M | −3% |
| Jun 30 2003 | Harris Bank Marengo | $82.4M | +3% |
| Jun 30 2002 | Harris Bank Marengo | $80.4M | 0% |
| Jun 30 2001 | Harris Bank Marengo | $80.5M | 0% |
| Jun 30 2000 | Harris Bank Marengo | $80.6M | −9% |
| Jun 30 1999 | Harris Bank Marengo | $88.7M | +10% |
| Jun 30 1998 | Harris Bank Marengo | $80.5M | +3% |
| Jun 30 1997 | Harris Bank Marengo | $78.3M | +1% |
| Jun 30 1996 | Harris Bank Marengo | $77.6M | +9% |
| Jun 30 1995 | Harris Bank MarengoNEW NAME | $71.4M | +14% |
| Jun 30 1994 | Marengo State Bank | $62.3M | |
| 1930-01-01 | Office established (FDIC record) — 64 years before this passbook begins | ||
Nearest other open offices in McHenry County
- 0.5 miPrairie Community Bank · 800 W Grant Hwy, Marengo
- 0.6 miFirst National Bank of Omaha · 677 E Grant Hwy, Marengo
- 4.8 miPrairie Community Bank · 18001 Jefferson Street, Union
- 9.3 miBMO Bank National Association · 225 W Jackson St, Woodstock
- 9.3 miHome State Bank, National Association · 124 S Johnson St, Woodstock
- 9.4 miPrairie Community Bank · 233 Main St, Woodstock
- 9.5 miBMO Bank National Association · 217 E South St, Woodstock
- 9.7 miHeartland Bank and Trust Company · 12101 Regency Square Parkway, Huntley
All banks in McHenry County →
Every BMO Bank National Association office →
Earlier names and banks folded into BMO Bank National Association →
Names on the sign
1994–1994Marengo State Bank1995–2004Harris Bank Marengo2005–2011Harris National Association2012–2023BMO Harris Bank National Association2024–nowBMO Bank National Association
The FDIC office number stays with the building when banks merge or rename, so the same office appears under each owner. Follow an earlier name to see what became of that bank.
Deposits are the balances the bank assigned to this office on June 30 of each year, in nominal dollars. Source: FDIC Summary of Deposits, office (UNINUMBR) 1206.