Hamilton is a city in, and the county seat of Harris County, Georgia, United States. It is part of the Columbus, Georgia-Alabama metropolitan statistical area. The population was 1,680 at the 2020 census, up from 307 at the 2000 census.

Hamilton was founded in 1827 as seat of the newly formed Harris County. It was incorporated as a town in 1828 and as a city in 1903.

The city was named for U.S. Secretary of the Navy and governor of South Carolina Paul Hamilton (1762–1816).

In 1912, a black woman and three black men in Hamilton were lynched while being held for questioning in the murder of a white landowner. Coverage by local newspapers at the time suggested the four were guilty.

Hamilton is located slightly northeast of the center of Harris County, at the southern base of the Pine Mountain Range in the Piedmont region of the state.

According to the United States Census Bureau, the city has a total area of 3.3 square miles (8.6 km), all land.

Historical population

Census	Pop.	Note	%±
1870	359		—
1880	493		37.3%
1900	418		—
1910	403		−3.6%
1920	437		8.4%
1930	438		0.2%
1940	473		8.0%
1950	449		−5.1%
1960	396		−11.8%
1970	357		−9.8%
1980	495		38.7%
1990	454		−8.3%
2000	307		−32.4%
2010	1,016		230.9%
2020	1,680		65.4%
U.S. Decennial Census

As of the census of 2010, there were 1,016 people, 339 households, and 179 families residing in the city. By 2020, its population grew to 1,680.

The city is home to three of the seven schools in the county:

• Park Elementary School
• Harris County Carver Middle School
• Harris County High School

Highways in Hamilton include U.S. Route 27 and Georgia State Route 116.

• National Register of Historic Places listings in Harris County, Georgia

• City of Hamilton official website