In 1733, Gen. James Oglethorpe negotiated with the local Muskogean Indian tribes for this land that became part of the new colony of Georgia.

The town of Sunbury was established on June 19, 1758, on the Medway River and quickly became the 2nd busiest port in Georgia, behind Savannah.

These Congregationalists were 2nd and 3rd generations of people born in British America and had become more independent-minded and distinct in their political views from the other citizens of the colony.

The new government, composed of many of the leading citizens of Saint John's parish, organized a convention and established the first Constitution for the State of Georgia.

Fort Stewart has the Department of Defense Education Activity (DoDEA) as its local school district,[19] for the elementary level.

[22][23] As a predominantly African-American county home to a prominent military base (Fort Stewart), Liberty is a Democratic stronghold.

It has consistently supported Democrats for president since 1992 (the longest active streak in Southeast Georgia) and was last contested at this level in the 2000s, when Southern Republican George W. Bush came within single digits of carrying the county in both of his elections (coming within less than 4% in 2004).