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  • 1923 – “Mifflin County Building and Savings” Formed
  • 1924 – “Mifflin County Building and Savings” Officially opened
  • 1956 – Grand Opening of Main Branch at 19 North Brown St
  • 1956 – Became Member FDIC
  • 1959 – March 2, two-month celebration of 35th Anniversary
  • 1965 – Federal Home Loan Bank System Member
  • 1971 – Belleville Branch Opened
  • 1972 – Mount Union Branch Opened
  • 1980 – Federal Savings and Loan Insurance Corporation
  • 1993 – Name changed to “Mifflin County Savings Bank”
  • 1993 – Became a Mutual Savings Bank
  • 1996 – McClure Branch Opened
  • 1997 – Debit Card Program commenced
  • 2000 – First Operational ATM at Main Office
  • 2001 – Loan Center Opened
  • 2003 – Fiserv, Brookfield, Wisconsin online system
  • 2013 – Allensville Branch Opened
  • 2013 – Awarded Juniata River Valley Chamber of Commerce Community Service Award
  • 2013 - Celebrated 90 years as a Bank
  • 2017 – Mifflin County Science and Technology Fair Involvement
  • 2017 – Introduced new MCS Bank branding and new logo
  • 2021 - Milroy Operations Center Opened
  • 2023 - Burnham Branch Opened
  • 2023 - Celebrated 100 years as a Bank
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