Griffin is a city in and the county seat of Spalding County

Spalding County, Georgia

Spalding County is a county located in the U.S. state of Georgia. It was created December 20, 1851. As of 2000, the population was 58,417. The 2007 Census Estimate showed a population of 62,826...

 in the U.S. state of Georgia. It is part of the Atlanta metropolitan area. As of the 2010 census, the city had a population of 23,643.
Griffin is located at 33°14′51"N 84°16′15"W (33.247602, -84.270891).
According to the United States Census Bureau

United States Census Bureau

The United States Census Bureau is the government agency that is responsible for the United States Census. It also gathers other national demographic and economic data...

, the city has a total area of 14.6 square miles (37.8 km²), of which 14.5 square miles (37.6 km²) is land and 0.1 square mile (0.258998811 km²) (0.55%) is water.
As of the census

Census

A census is the procedure of systematically acquiring and recording information about the members of a given population. It is a regularly occurring and official count of a particular population. The term is used mostly in connection with national population and housing censuses; other common...

of 2000, there were 23,451 people, 8,876 households, and 5,955 families residing in the city.