Bank Branches › Banks › 1st Security Bank of Washington
1st Security Bank of Washington
30 offices in 2 states as of June 30, 2026. $2.5 billion in deposits. Main office: 6920 220th St Sw, Mountlake Terrace, WA. FDIC certificate 57633.
30
offices
2
states
−0
gone since 2025
+1
new since 2025
Where its offices are
Offices over time
Bank offices reporting on June 30Deposits booked at them (nominal dollars, own scale)
| Date | offices | Change | Deposits |
|---|---|---|---|
| Jun 30 2004 | 15 | $243M | |
| Jun 30 2005 | 13 | −2 | $208M |
| Jun 30 2010 | 7 | −4 | $235M |
| Jun 30 2015 | 8 | · | $480M |
| Jun 30 2020 | 23 | · | $1.6B |
| Jun 30 2025 | 29 | · | $2.6B |
| Jun 30 2026PEAK | 30 | +1 | $2.5B |
Open the full passbook — all 23 years ▾
| Date | offices | Change | Deposits |
|---|---|---|---|
| Jun 30 2004 | 15 | $243M | |
| Jun 30 2005 | 13 | −2 | $208M |
| Jun 30 2006 | 13 | · | $204M |
| Jun 30 2007 | 13 | · | $200M |
| Jun 30 2008 | 13 | · | $196M |
| Jun 30 2009 | 11 | −2 | $219M |
| Jun 30 2010 | 7 | −4 | $235M |
| Jun 30 2011 | 7 | · | $242M |
| Jun 30 2012 | 7 | · | $308M |
| Jun 30 2013 | 8 | +1 | $314M |
| Jun 30 2014 | 8 | · | $362M |
| Jun 30 2015 | 8 | · | $480M |
| Jun 30 2016 | 12 | +4 | $672M |
| Jun 30 2017 | 12 | · | $793M |
| Jun 30 2018 | 13 | +1 | $884M |
| Jun 30 2019 | 23 | +10 | $1.3B |
| Jun 30 2020 | 23 | · | $1.6B |
| Jun 30 2021 | 23 | · | $1.9B |
| Jun 30 2022 | 23 | · | $2.0B |
| Jun 30 2023 | 29 | +6 | $2.4B |
| Jun 30 2024 | 29 | · | $2.4B |
| Jun 30 2025 | 29 | · | $2.6B |
| Jun 30 2026PEAK | 30 | +1 | $2.5B |
Counted under FDIC certificate 57633. When one bank buys another, the bought bank's offices move onto the buyer's certificate, so a jump here is usually a merger, not a building spree. Its earlier names and the banks folded into it →
Offices with the most deposits booked
| Office | Deposits |
|---|---|
| 1St Security Bank Of WashingtonMountlake Terrace, WA | $503M |
| Port Townsend BranchPort Townsend, WA | $133M |
| Sequim BranchSequim, WA | $131M |
| EdmondsEdmonds, WA | $129M |
| Eighth Street BranchPort Angeles, WA | $125M |
| LynnwoodLynnwood, WA | $116M |
| Aberdeen BranchAberdeen, WA | $110M |
| Hadlock BranchHadlock, WA | $99.3M |
| Puyallup-DowntownPuyallup, WA | $90.6M |
| Crossroads BranchBellevue, WA | $89.7M |
By state
| State | Offices |
|---|---|
| Washington | 25 |
| Oregon | 5 |