Welcome to the Borough of Gettysburg, the Adams County seat. Gettysburg was originally settled in 1786 and incorporated in 1806. Today, Gettysburg is governed with a Council/Manager form of government, also known as ‘weak mayor-strong council’. Council derives its legislative authority from the Commonwealth of Pennsylvania as outlined in the Borough Code. Borough Council consists of 7 members who serve a term of four years (2 elected from each of 3 wards in staggered years). The seventh member is elected at large, by all three wards. The Mayor is elected at large for a 4 year term.